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src/main/org/h2/res/help.csv
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# Copyright 2004-2014 H2 Group. Multiple-Licensed under the MPL 2.0,
# and the EPL 1.0 (http://h2database.com/html/license.html).
# Initial Developer: H2 Group)
"SECTION","TOPIC","SYNTAX","TEXT"
"Commands (DML)","SELECT","
SELECT [ TOP term ] [ DISTINCT | ALL ] selectExpression [,...]
FROM tableExpression [,...] [ WHERE expression ]
[ GROUP BY expression [,...] ] [ HAVING expression ]
[ { UNION [ ALL ] | MINUS | EXCEPT | INTERSECT } select ] [ ORDER BY order [,...] ]
[ { LIMIT expression [ OFFSET expression ] [ SAMPLE_SIZE rowCountInt ] } | { [ OFFSET expression { ROW | ROWS } ] [ { FETCH { FIRST | NEXT } expression { ROW | ROWS } ONLY } ] } ]
[ FOR UPDATE ]
","
Selects data from a table or multiple tables."
"Commands (DML)","INSERT","
INSERT INTO tableName
{ [ ( columnName [,...] ) ]
{ VALUES { ( { DEFAULT | expression } [,...] ) } [,...] | [ DIRECT ] [ SORTED ] select } } |
{ SET { columnName = { DEFAULT | expression } } [,...] }
","
Inserts a new row / new rows into a table."
"Commands (DML)","UPDATE","
UPDATE tableName [ [ AS ] newTableAlias ] SET
{ { columnName = { DEFAULT | expression } } [,...] } |
{ ( columnName [,...] ) = ( select ) }
[ WHERE expression ] [ ORDER BY order [,...] ] [ LIMIT expression ]
","
Updates data in a table."
"Commands (DML)","DELETE","
DELETE [ TOP term ] FROM tableName [ WHERE expression ] [ LIMIT term ]
","
Deletes rows form a table."
"Commands (DML)","BACKUP","
BACKUP TO fileNameString
","
Backs up the database files to a ."
"Commands (DML)","CALL","
CALL expression
","
Calculates a simple expression."
"Commands (DML)","EXPLAIN","
EXPLAIN { [ PLAN FOR ] | ANALYZE } { select | insert | update | delete | merge }
","
Shows the execution plan for a statement."
"Commands (DML)","MERGE","
MERGE INTO tableName [ ( columnName [,...] ) ]
[ KEY ( columnName [,...] ) ]
{ VALUES { ( { DEFAULT | expression } [,...] ) } [,...] | select }
","
Updates existing rows, and insert rows that don't exist."
"Commands (DML)","RUNSCRIPT","
RUNSCRIPT FROM fileNameString scriptCompressionEncryption
[ CHARSET charsetString ]
","
Runs a SQL script from a file."
"Commands (DML)","SCRIPT","
SCRIPT [ SIMPLE ] [ NODATA ] [ NOPASSWORDS ] [ NOSETTINGS ]
[ DROP ] [ BLOCKSIZE blockSizeInt ]
[ TO fileNameString scriptCompressionEncryption
[ CHARSET charsetString ] ]
[ TABLE tableName [, ...] ]
[ SCHEMA schemaName [, ...] ]
","
Creates a SQL script from the database."
"Commands (DML)","SHOW","
SHOW { SCHEMAS | TABLES [ FROM schemaName ] |
COLUMNS FROM tableName [ FROM schemaName ] }
","
Lists the schemas, tables, or the columns of a table."
"Commands (DML)","WITH","
WITH [ RECURSIVE ] { name [( columnName [,...] )]
AS ( select ) [,...] }
{ select | insert | update | merge | delete | createTable }
","
Can be used to create a recursive or non-recursive query (common table expression)."
"Commands (DDL)","ALTER INDEX RENAME","
ALTER INDEX [ IF EXISTS ] indexName RENAME TO newIndexName
","
Renames an index."
"Commands (DDL)","ALTER SCHEMA RENAME","
ALTER SCHEMA [ IF EXISTS ] schema RENAME TO newSchemaName
","
Renames a schema."
"Commands (DDL)","ALTER SEQUENCE","
ALTER SEQUENCE [ IF EXISTS ] sequenceName [ RESTART WITH long ] [ INCREMENT BY long ]
[ MINVALUE long | NOMINVALUE | NO MINVALUE ]
[ MAXVALUE long | NOMAXVALUE | NO MAXVALUE ]
[ CYCLE long | NOCYCLE | NO CYCLE ]
[ CACHE long | NOCACHE | NO CACHE ]
","
Changes the parameters of a sequence."
"Commands (DDL)","ALTER TABLE ADD","
ALTER TABLE [ IF EXISTS ] tableName ADD [ COLUMN ]
{ [ IF NOT EXISTS ] columnDefinition | ( { columnDefinition } [,...] ) }
[ { BEFORE | AFTER } columnName ]
","
Adds a new column to a table."
"Commands (DDL)","ALTER TABLE ADD CONSTRAINT","
ALTER TABLE [ IF EXISTS ] tableName ADD constraint [ CHECK | NOCHECK ]
","
Adds a constraint to a table."
"Commands (DDL)","ALTER TABLE RENAME CONSTRAINT","
ALTER TABLE [ IF EXISTS ] tableName RENAME oldConstraintName TO newConstraintName
","
Renames a constraint."
"Commands (DDL)","ALTER TABLE ALTER COLUMN","
ALTER TABLE [ IF EXISTS ] tableName ALTER COLUMN columnName
{ { dataType [ VISIBLE | INVISIBLE ] [ DEFAULT expression ] [ [ NOT ] NULL ] [ AUTO_INCREMENT | IDENTITY ] }
| { RENAME TO name }
| { RESTART WITH long }
| { SELECTIVITY int }
| { SET DEFAULT expression }
| { SET NULL }
| { SET NOT NULL }
| { SET { VISIBLE | INVISIBLE } } }
","
Changes the data type of a column, rename a column,
change the identity value, or change the selectivity."
"Commands (DDL)","ALTER TABLE DROP COLUMN","
ALTER TABLE [ IF EXISTS ] tableName DROP COLUMN [ IF EXISTS ] ( columnName [,...] )
","
Removes column(s) from a table."
"Commands (DDL)","ALTER TABLE DROP CONSTRAINT","
ALTER TABLE [ IF EXISTS ] tableName DROP { CONSTRAINT [ IF EXISTS ] constraintName | PRIMARY KEY }
","
Removes a constraint or a primary key from a table."
"Commands (DDL)","ALTER TABLE SET","
ALTER TABLE [ IF EXISTS ] tableName SET REFERENTIAL_INTEGRITY
{ FALSE | TRUE [ CHECK | NOCHECK ] }
","
Disables or enables referential integrity checking for a table."
"Commands (DDL)","ALTER TABLE RENAME","
ALTER TABLE [ IF EXISTS ] tableName RENAME TO newName
","
Renames a table."
"Commands (DDL)","ALTER USER ADMIN","
ALTER USER userName ADMIN { TRUE | FALSE }
","
Switches the admin flag of a user on or off."
"Commands (DDL)","ALTER USER RENAME","
ALTER USER userName RENAME TO newUserName
","
Renames a user."
"Commands (DDL)","ALTER USER SET PASSWORD","
ALTER USER userName SET { PASSWORD string | SALT bytes HASH bytes }
","
Changes the password of a user."
"Commands (DDL)","ALTER VIEW","
ALTER VIEW [ IF EXISTS ] viewName RECOMPILE
","
Recompiles a view after the underlying tables have been changed or created."
"Commands (DDL)","ANALYZE","
ANALYZE [ TABLE tableName ] [ SAMPLE_SIZE rowCountInt ]
","
Updates the selectivity statistics of tables."
"Commands (DDL)","COMMENT","
COMMENT ON
{ { COLUMN [ schemaName. ] tableName.columnName }
| { { TABLE | VIEW | CONSTANT | CONSTRAINT | ALIAS | INDEX | ROLE
| SCHEMA | SEQUENCE | TRIGGER | USER | DOMAIN } [ schemaName. ] objectName } }
IS expression
","
Sets the comment of a database object."
"Commands (DDL)","CREATE AGGREGATE","
CREATE AGGREGATE [ IF NOT EXISTS ] newAggregateName FOR className
","
Creates a new user-defined aggregate function."
"Commands (DDL)","CREATE ALIAS","
CREATE ALIAS [ IF NOT EXISTS ] newFunctionAliasName [ DETERMINISTIC ]
[ NOBUFFER ] { FOR classAndMethodName | AS sourceCodeString }
","
Creates a new function alias."
"Commands (DDL)","CREATE CONSTANT","
CREATE CONSTANT [ IF NOT EXISTS ] newConstantName VALUE expression
","
Creates a new constant."
"Commands (DDL)","CREATE DOMAIN","
CREATE DOMAIN [ IF NOT EXISTS ] newDomainName AS dataType
[ DEFAULT expression ] [ [ NOT ] NULL ] [ SELECTIVITY selectivity ]
[ CHECK condition ]
","
Creates a new data type (domain)."
"Commands (DDL)","CREATE INDEX","
CREATE
{ [ UNIQUE ] [ HASH | SPATIAL] INDEX [ [ IF NOT EXISTS ] newIndexName ]
| PRIMARY KEY [ HASH ] }
ON tableName ( indexColumn [,...] )
","
Creates a new index."
"Commands (DDL)","CREATE LINKED TABLE","
CREATE [ FORCE ] [ [ GLOBAL | LOCAL ] TEMPORARY ]
LINKED TABLE [ IF NOT EXISTS ]
name ( driverString, urlString, userString, passwordString,
[ originalSchemaString, ] originalTableString ) [ EMIT UPDATES | READONLY ]
","
Creates a table link to an external table."
"Commands (DDL)","CREATE ROLE","
CREATE ROLE [ IF NOT EXISTS ] newRoleName
","
Creates a new role."
"Commands (DDL)","CREATE SCHEMA","
CREATE SCHEMA [ IF NOT EXISTS ] name [ AUTHORIZATION ownerUserName ]
[ WITH tableEngineParamName [,...] ]
","
Creates a new schema."
"Commands (DDL)","CREATE SEQUENCE","
CREATE SEQUENCE [ IF NOT EXISTS ] newSequenceName [ START WITH long ]
[ INCREMENT BY long ]
[ MINVALUE long | NOMINVALUE | NO MINVALUE ]
[ MAXVALUE long | NOMAXVALUE | NO MAXVALUE ]
[ CYCLE long | NOCYCLE | NO CYCLE ]
[ CACHE long | NOCACHE | NO CACHE ]
","
Creates a new sequence."
"Commands (DDL)","CREATE TABLE","
CREATE [ CACHED | MEMORY ] [ TEMP | [ GLOBAL | LOCAL ] TEMPORARY ]
TABLE [ IF NOT EXISTS ] name
[ ( { columnDefinition | constraint } [,...] ) ]
[ ENGINE tableEngineName ]
[ WITH tableEngineParamName [,...] ]
[ NOT PERSISTENT ] [ TRANSACTIONAL ]
[ AS select ]","
Creates a new table."
"Commands (DDL)","CREATE TRIGGER","
CREATE TRIGGER [ IF NOT EXISTS ] newTriggerName { BEFORE | AFTER | INSTEAD OF }
{ INSERT | UPDATE | DELETE | SELECT | ROLLBACK } [,...] ON tableName [ FOR EACH ROW ]
[ QUEUE int ] [ NOWAIT ] { CALL triggeredClassName | AS sourceCodeString }
","
Creates a new trigger."
"Commands (DDL)","CREATE USER","
CREATE USER [ IF NOT EXISTS ] newUserName
{ PASSWORD string | SALT bytes HASH bytes } [ ADMIN ]
","
Creates a new user."
"Commands (DDL)","CREATE VIEW","
CREATE [ OR REPLACE ] [ FORCE ] VIEW [ IF NOT EXISTS ] newViewName
[ ( columnName [,...] ) ] AS select
","
Creates a new view."
"Commands (DDL)","DROP AGGREGATE","
DROP AGGREGATE [ IF EXISTS ] aggregateName
","
Drops an existing user-defined aggregate function."
"Commands (DDL)","DROP ALIAS","
DROP ALIAS [ IF EXISTS ] existingFunctionAliasName
","
Drops an existing function alias."
"Commands (DDL)","DROP ALL OBJECTS","
DROP ALL OBJECTS [ DELETE FILES ]
","
Drops all existing views, tables, sequences, schemas, function aliases, roles,
user-defined aggregate functions, domains, and users (except the current user)."
"Commands (DDL)","DROP CONSTANT","
DROP CONSTANT [ IF EXISTS ] constantName
","
Drops a constant."
"Commands (DDL)","DROP DOMAIN","
DROP DOMAIN [ IF EXISTS ] domainName
","
Drops a data type (domain)."
"Commands (DDL)","DROP INDEX","
DROP INDEX [ IF EXISTS ] indexName
","
Drops an index."
"Commands (DDL)","DROP ROLE","
DROP ROLE [ IF EXISTS ] roleName
","
Drops a role."
"Commands (DDL)","DROP SCHEMA","
DROP SCHEMA [ IF EXISTS ] schemaName
","
Drops a schema."
"Commands (DDL)","DROP SEQUENCE","
DROP SEQUENCE [ IF EXISTS ] sequenceName
","
Drops a sequence."
"Commands (DDL)","DROP TABLE","
DROP TABLE [ IF EXISTS ] tableName [,...] [ RESTRICT | CASCADE ]
","
Drops an existing table, or a list of tables."
"Commands (DDL)","DROP TRIGGER","
DROP TRIGGER [ IF EXISTS ] triggerName
","
Drops an existing trigger."
"Commands (DDL)","DROP USER","
DROP USER [ IF EXISTS ] userName
","
Drops a user."
"Commands (DDL)","DROP VIEW","
DROP VIEW [ IF EXISTS ] viewName [ RESTRICT | CASCADE ]
","
Drops an existing view."
"Commands (DDL)","TRUNCATE TABLE","
TRUNCATE TABLE tableName
","
Removes all rows from a table."
"Commands (Other)","CHECKPOINT","
CHECKPOINT
","
Flushes the data to disk."
"Commands (Other)","CHECKPOINT SYNC","
CHECKPOINT SYNC
","
Flushes the data to disk and and forces all system buffers be written
to the underlying device."
"Commands (Other)","COMMIT","
COMMIT [ WORK ]
","
Commits a transaction."
"Commands (Other)","COMMIT TRANSACTION","
COMMIT TRANSACTION transactionName
","
Sets the resolution of an in-doubt transaction to 'commit'."
"Commands (Other)","GRANT RIGHT","
GRANT { SELECT | INSERT | UPDATE | DELETE | ALL } [,...] ON
{ { SCHEMA schemaName } | { tableName [,...] } }
TO { PUBLIC | userName | roleName }
","
Grants rights for a table to a user or role."
"Commands (Other)","GRANT ALTER ANY SCHEMA","
GRANT ALTER ANY SCHEMA TO userName
","
Grant schema altering rights to a user."
"Commands (Other)","GRANT ROLE","
GRANT roleName TO { PUBLIC | userName | roleName }
","
Grants a role to a user or role."
"Commands (Other)","HELP","
HELP [ anything [...] ]
","
Displays the help pages of SQL commands or keywords."
"Commands (Other)","PREPARE COMMIT","
PREPARE COMMIT newTransactionName
","
Prepares committing a transaction."
"Commands (Other)","REVOKE RIGHT","
REVOKE { SELECT | INSERT | UPDATE | DELETE | ALL } [,...] ON
{ { SCHEMA schemaName } | { tableName [,...] } }
FROM { PUBLIC | userName | roleName }
","
Removes rights for a table from a user or role."
"Commands (Other)","REVOKE ROLE","
REVOKE roleName FROM { PUBLIC | userName | roleName }
","
Removes a role from a user or role."
"Commands (Other)","ROLLBACK","
ROLLBACK [ TO SAVEPOINT savepointName ]
","
Rolls back a transaction."
"Commands (Other)","ROLLBACK TRANSACTION","
ROLLBACK TRANSACTION transactionName
","
Sets the resolution of an in-doubt transaction to 'rollback'."
"Commands (Other)","SAVEPOINT","
SAVEPOINT savepointName
","
Create a new savepoint."
"Commands (Other)","SET @","
SET @variableName [ = ] expression
","
Updates a user-defined variable."
"Commands (Other)","SET ALLOW_LITERALS","
SET ALLOW_LITERALS { NONE | ALL | NUMBERS }
","
This setting can help solve the SQL injection problem."
"Commands (Other)","SET AUTOCOMMIT","
SET AUTOCOMMIT { TRUE | ON | FALSE | OFF }
","
Switches auto commit on or off."
"Commands (Other)","SET CACHE_SIZE","
SET CACHE_SIZE int
","
Sets the size of the cache in KB (each KB being 1024 bytes) for the current database."
"Commands (Other)","SET CLUSTER","
SET CLUSTER serverListString
","
This command should not be used directly by an application, the statement is
executed automatically by the system."
"Commands (Other)","SET BINARY_COLLATION","
SET BINARY_COLLATION
{ UNSIGNED | SIGNED } ] }
","
Sets the collation used for comparing BINARY columns, the default is SIGNED
for version 1."
"Commands (Other)","SET BUILTIN_ALIAS_OVERRIDE","
SET BUILTIN_ALIAS_OVERRIDE
{ TRUE | FALSE } ] }
","
Allows the overriding of the builtin system date/time functions
for unit testing purposes."
"Commands (Other)","SET COLLATION","
SET [ DATABASE ] COLLATION
{ OFF | collationName [ STRENGTH { PRIMARY | SECONDARY | TERTIARY | IDENTICAL } ] }
","
Sets the collation used for comparing strings."
"Commands (Other)","SET COMPRESS_LOB","
SET COMPRESS_LOB { NO | LZF | DEFLATE }
","
This feature is only available for the PageStore storage engine."
"Commands (Other)","SET DATABASE_EVENT_LISTENER","
SET DATABASE_EVENT_LISTENER classNameString
","
Sets the event listener class."
"Commands (Other)","SET DB_CLOSE_DELAY","
SET DB_CLOSE_DELAY int
","
Sets the delay for closing a database if all connections are closed."
"Commands (Other)","SET DEFAULT_LOCK_TIMEOUT","
SET DEFAULT LOCK_TIMEOUT int
","
Sets the default lock timeout (in milliseconds) in this database that is used
for the new sessions."
"Commands (Other)","SET DEFAULT_TABLE_TYPE","
SET DEFAULT_TABLE_TYPE { MEMORY | CACHED }
","
Sets the default table storage type that is used when creating new tables."
"Commands (Other)","SET EXCLUSIVE","
SET EXCLUSIVE { 0 | 1 | 2 }
","
Switched the database to exclusive mode (1, 2) and back to normal mode (0)."
"Commands (Other)","SET IGNORECASE","
SET IGNORECASE { TRUE | FALSE }
","
If IGNORECASE is enabled, text columns in newly created tables will be
case-insensitive."
"Commands (Other)","SET JAVA_OBJECT_SERIALIZER","
SET JAVA_OBJECT_SERIALIZER
{ null | className }
","
Sets the object used to serialize and deserialize java objects being stored in column of type OTHER."
"Commands (Other)","SET LOG","
SET LOG int
","
Sets the transaction log mode."
"Commands (Other)","SET LOCK_MODE","
SET LOCK_MODE int
","
Sets the lock mode."
"Commands (Other)","SET LOCK_TIMEOUT","
SET LOCK_TIMEOUT int
","
Sets the lock timeout (in milliseconds) for the current session."
"Commands (Other)","SET MAX_LENGTH_INPLACE_LOB","
SET MAX_LENGTH_INPLACE_LOB int
","
Sets the maximum size of an in-place LOB object."
"Commands (Other)","SET MAX_LOG_SIZE","
SET MAX_LOG_SIZE int
","
Sets the maximum size of the transaction log, in megabytes."
"Commands (Other)","SET MAX_MEMORY_ROWS","
SET MAX_MEMORY_ROWS int
","
The maximum number of rows in a result set that are kept in-memory."
"Commands (Other)","SET MAX_MEMORY_UNDO","
SET MAX_MEMORY_UNDO int
","
The maximum number of undo records per a session that are kept in-memory."
"Commands (Other)","SET MAX_OPERATION_MEMORY","
SET MAX_OPERATION_MEMORY int
","
Sets the maximum memory used for large operations (delete and insert), in bytes."
"Commands (Other)","SET MODE","
SET MODE { REGULAR | DB2 | DERBY | HSQLDB | MSSQLSERVER | MYSQL | ORACLE | POSTGRESQL }
","
Changes to another database compatibility mode."
"Commands (Other)","SET MULTI_THREADED","
SET MULTI_THREADED { 0 | 1 }
","
Enabled (1) or disabled (0) multi-threading inside the database engine."
"Commands (Other)","SET OPTIMIZE_REUSE_RESULTS","
SET OPTIMIZE_REUSE_RESULTS { 0 | 1 }
","
Enabled (1) or disabled (0) the result reuse optimization."
"Commands (Other)","SET PASSWORD","
SET PASSWORD string
","
Changes the password of the current user."
"Commands (Other)","SET QUERY_STATISTICS","
SET QUERY_STATISTICS { TRUE | FALSE }
","
Disabled or enables query statistics gathering for the whole database."
"Commands (Other)","SET QUERY_STATISTICS_MAX_ENTRIES","
SET QUERY_STATISTICS int
","
Set the maximum number of entries in query statistics meta-table."
"Commands (Other)","SET QUERY_TIMEOUT","
SET QUERY_TIMEOUT int
","
Set the query timeout of the current session to the given value."
"Commands (Other)","SET REFERENTIAL_INTEGRITY","
SET REFERENTIAL_INTEGRITY { TRUE | FALSE }
","
Disabled or enables referential integrity checking for the whole database."
"Commands (Other)","SET RETENTION_TIME","
SET RETENTION_TIME int
","
This property is only used when using the MVStore storage engine."
"Commands (Other)","SET SALT HASH","
SET SALT bytes HASH bytes
","
Sets the password salt and hash for the current user."
"Commands (Other)","SET SCHEMA","
SET SCHEMA schemaName
","
Changes the default schema of the current connection."
"Commands (Other)","SET SCHEMA_SEARCH_PATH","
SET SCHEMA_SEARCH_PATH schemaName [,...]
","
Changes the schema search path of the current connection."
"Commands (Other)","SET THROTTLE","
SET THROTTLE int
","
Sets the throttle for the current connection."
"Commands (Other)","SET TRACE_LEVEL","
SET { TRACE_LEVEL_FILE | TRACE_LEVEL_SYSTEM_OUT } int
","
Sets the trace level for file the file or system out stream."
"Commands (Other)","SET TRACE_MAX_FILE_SIZE","
SET TRACE_MAX_FILE_SIZE int
","
Sets the maximum trace file size."
"Commands (Other)","SET UNDO_LOG","
SET UNDO_LOG int
","
Enables (1) or disables (0) the per session undo log."
"Commands (Other)","SET WRITE_DELAY","
SET WRITE_DELAY int
","
Set the maximum delay between a commit and flushing the log, in milliseconds."
"Commands (Other)","SHUTDOWN","
SHUTDOWN [ IMMEDIATELY | COMPACT | DEFRAG ]
","
This statement closes all open connections to the database and closes the
database."
"Other Grammar","Alias","
name
","
An alias is a name that is only valid in the context of the statement."
"Other Grammar","And Condition","
condition [ { AND condition } [...] ]
","
Value or condition."
"Other Grammar","Array","
( [ expression, [ expression [,...] ] ] )
","
An array of values."
"Other Grammar","Boolean","
TRUE | FALSE
","
A boolean value."
"Other Grammar","Bytes","
X'hex'
","
A binary value."
"Other Grammar","Case","
CASE expression { WHEN expression THEN expression } [...]
[ ELSE expression ] END
","
Returns the first expression where the value is equal to the test expression."
"Other Grammar","Case When","
CASE { WHEN expression THEN expression} [...]
[ ELSE expression ] END
","
Returns the first expression where the condition is true."
"Other Grammar","Cipher","
AES
","
Only the algorithm AES (""AES-128"") is supported currently."
"Other Grammar","Column Definition","
columnName dataType
[ VISIBLE | INVISIBLE ]
[ { DEFAULT expression | AS computedColumnExpression } ] [ [ NOT ] NULL ]
[ { AUTO_INCREMENT | IDENTITY } [ ( startInt [, incrementInt ] ) ] ]
[ SELECTIVITY selectivity ] [ COMMENT expression ]
[ PRIMARY KEY [ HASH ] | UNIQUE ] [ CHECK condition ]
","
Default expressions are used if no explicit value was used when adding a row."
"Other Grammar","Comments","
-- anythingUntilEndOfLine | // anythingUntilEndOfLine | /* anythingUntilEndComment */
","
Comments can be used anywhere in a command and are ignored by the database."
"Other Grammar","Compare","
<> | <= | >= | = | < | > | != | &&
","
Comparison operator."
"Other Grammar","Condition","
operand [ conditionRightHandSide ] | NOT condition | EXISTS ( select )
","
Boolean value or condition."
"Other Grammar","Condition Right Hand Side","
compare { { { ALL | ANY | SOME } ( select ) } | operand }
| IS [ NOT ] NULL
| IS [ NOT ] [ DISTINCT FROM ] operand
| BETWEEN operand AND operand
| IN ( { select | expression [,...] } )
| [ NOT ] [ LIKE | ILIKE ] operand [ ESCAPE string ]
| [ NOT ] REGEXP operand
","
The right hand side of a condition."
"Other Grammar","Constraint","
[ constraintNameDefinition ]
{ CHECK expression
| UNIQUE ( columnName [,...] )
| referentialConstraint
| PRIMARY KEY [ HASH ] ( columnName [,...] ) }
","
Defines a constraint."
"Other Grammar","Constraint Name Definition","
CONSTRAINT [ IF NOT EXISTS ] newConstraintName
","
Defines a constraint name."
"Other Grammar","Csv Options","
charsetString [, fieldSepString [, fieldDelimString [, escString [, nullString]]]]]
| optionString
","
Optional parameters for CSVREAD and CSVWRITE."
"Other Grammar","Data Type","
intType | booleanType | tinyintType | smallintType | bigintType | identityType
| decimalType | doubleType | realType | dateType | timeType | timestampType
| binaryType | otherType | varcharType | varcharIgnorecaseType | charType
| blobType | clobType | uuidType | arrayType | enumType
","
A data type definition."
"Other Grammar","Date","
DATE 'yyyy-MM-dd'
","
A date literal."
"Other Grammar","Decimal","
[ + | - ] { { number [ . number ] } | { . number } } [ E [ + | - ] expNumber [...] ] ]
","
A decimal number with fixed precision and scale."
"Other Grammar","Digit","
0-9
","
A digit."
"Other Grammar","Dollar Quoted String","
$$anythingExceptTwoDollarSigns$$
","
A string starts and ends with two dollar signs."
"Other Grammar","Expression","
andCondition [ { OR andCondition } [...] ]
","
Value or condition."
"Other Grammar","Factor","
term [ { { * | / | % } term } [...] ]
","
A value or a numeric factor."
"Other Grammar","Hex","
{ { digit | a-f | A-F } { digit | a-f | A-F } } [...]
","
The hexadecimal representation of a number or of bytes."
"Other Grammar","Hex Number","
[ + | - ] 0x hex
","
A number written in hexadecimal notation."
"Other Grammar","Index Column","
columnName [ ASC | DESC ] [ NULLS { FIRST | LAST } ]
","
Indexes this column in ascending or descending order."
"Other Grammar","Int","
[ + | - ] number
","
The maximum integer number is 2147483647, the minimum is -2147483648."
"Other Grammar","Long","
[ + | - ] number
","
Long numbers are between -9223372036854775808 and 9223372036854775807."
"Other Grammar","Name","
{ { A-Z|_ } [ { A-Z|_|0-9 } [...] ] } | quotedName
","
Names are not case sensitive."
"Other Grammar","Null","
NULL
","
NULL is a value without data type and means 'unknown value'."
"Other Grammar","Number","
digit [...]
","
The maximum length of the number depends on the data type used."
"Other Grammar","Numeric","
decimal | int | long | hexNumber
","
The data type of a numeric value is always the lowest possible for the given value."
"Other Grammar","Operand","
summand [ { || summand } [...] ]
","
A value or a concatenation of values."
"Other Grammar","Order","
{ int | expression } [ ASC | DESC ] [ NULLS { FIRST | LAST } ]
","
Sorts the result by the given column number, or by an expression."
"Other Grammar","Quoted Name","
""anythingExceptDoubleQuote""
","
Quoted names are case sensitive, and can contain spaces."
"Other Grammar","Referential Constraint","
FOREIGN KEY ( columnName [,...] )
REFERENCES [ refTableName ] [ ( refColumnName [,...] ) ]
[ ON DELETE referentialAction ] [ ON UPDATE referentialAction ]
","
Defines a referential constraint."
"Other Grammar","Referential Action","
CASCADE | RESTRICT | NO ACTION | SET { DEFAULT | NULL }
","
The action CASCADE will cause conflicting rows in the referencing (child) table to be deleted or updated."
"Other Grammar","Script Compression Encryption","
[ COMPRESSION { DEFLATE | LZF | ZIP | GZIP } ] [ CIPHER cipher PASSWORD string ]
","
The compression and encryption algorithm to use for script files."
"Other Grammar","Select Expression","
* | expression [ [ AS ] columnAlias ] | tableAlias.*
","
An expression in a SELECT statement."
"Other Grammar","String","
'anythingExceptSingleQuote'
","
A string starts and ends with a single quote."
"Other Grammar","Summand","
factor [ { { + | - } factor } [...] ]
","
A value or a numeric sum."
"Other Grammar","Table Expression","
{ [ schemaName. ] tableName | ( select ) | valuesExpression } [ [ AS ] newTableAlias ]
[ USE INDEX ([ indexName [,...] ]) ]
[ { { LEFT | RIGHT } [ OUTER ] | [ INNER ] | CROSS | NATURAL }
JOIN tableExpression [ ON expression ] ]
","
Joins a table."
"Other Grammar","Values Expression","
VALUES { ( expression [,...] ) } [,...]
","
A list of rows that can be used like a table."
"Other Grammar","Term","
value
| columnName
| ?[ int ]
| NEXT VALUE FOR sequenceName
| function
| { - | + } term
| ( expression )
| select
| case
| caseWhen
| tableAlias.columnName
| userDefinedFunctionName
","
A value."
"Other Grammar","Time","
TIME 'hh:mm:ss'
","
A time literal."
"Other Grammar","Timestamp","
TIMESTAMP 'yyyy-MM-dd hh:mm:ss[.nnnnnnnnn]'
","
A timestamp literal."
"Other Grammar","Value","
string | dollarQuotedString | numeric | date | time | timestamp | boolean | bytes | array | null
","
A literal value of any data type, or null."
"Data Types","INT Type","
INT | INTEGER | MEDIUMINT | INT4 | SIGNED
","
Possible values: -2147483648 to 2147483647."
"Data Types","BOOLEAN Type","
BOOLEAN | BIT | BOOL
","
Possible values: TRUE and FALSE."
"Data Types","TINYINT Type","
TINYINT
","
Possible values are: -128 to 127."
"Data Types","SMALLINT Type","
SMALLINT | INT2 | YEAR
","
Possible values: -32768 to 32767."
"Data Types","BIGINT Type","
BIGINT | INT8
","
Possible values: -9223372036854775808 to 9223372036854775807."
"Data Types","IDENTITY Type","
IDENTITY
","
Auto-Increment value."
"Data Types","DECIMAL Type","
{ DECIMAL | NUMBER | DEC | NUMERIC } ( precisionInt [ , scaleInt ] )
","
Data type with fixed precision and scale."
"Data Types","DOUBLE Type","
{ DOUBLE [ PRECISION ] | FLOAT | FLOAT8 }
","
A floating point number."
"Data Types","REAL Type","
{ REAL | FLOAT4 }
","
A single precision floating point number."
"Data Types","TIME Type","
TIME
","
The time data type."
"Data Types","DATE Type","
DATE
","
The date data type."
"Data Types","TIMESTAMP Type","
{ TIMESTAMP | DATETIME | SMALLDATETIME }
","
The timestamp data type."
"Data Types","TIMESTAMP WITH TIME ZONE Type","
TIMESTAMP WITH TIME ZONE
","
VERY MUCH STILL IN TESTING."
"Data Types","BINARY Type","
{ BINARY | VARBINARY | LONGVARBINARY | RAW | BYTEA } [ ( precisionInt ) ]
","
Represents a byte array."
"Data Types","OTHER Type","
OTHER
","
This type allows storing serialized Java objects."
"Data Types","VARCHAR Type","
{ VARCHAR | LONGVARCHAR | VARCHAR2 | NVARCHAR
| NVARCHAR2 | VARCHAR_CASESENSITIVE} [ ( precisionInt ) ]
","
A Unicode String."
"Data Types","VARCHAR_IGNORECASE Type","
VARCHAR_IGNORECASE [ ( precisionInt ) ]
","
Same as VARCHAR, but not case sensitive when comparing."
"Data Types","CHAR Type","
{ CHAR | CHARACTER | NCHAR } [ ( precisionInt ) ]
","
A Unicode String."
"Data Types","BLOB Type","
{ BLOB | TINYBLOB | MEDIUMBLOB | LONGBLOB | IMAGE | OID } [ ( precisionInt ) ]
","
Like BINARY, but intended for very large values such as files or images."
"Data Types","CLOB Type","
{ CLOB | TINYTEXT | TEXT | MEDIUMTEXT | LONGTEXT | NTEXT | NCLOB } [ ( precisionInt ) ]
","
CLOB is like VARCHAR, but intended for very large values."
"Data Types","UUID Type","
UUID
","
Universally unique identifier."
"Data Types","ARRAY Type","
ARRAY
","
An array of values."
"Data Types","ENUM Type","
{ ENUM (string [, ... ]) }
","
A type with enumerated values."
"Data Types","GEOMETRY Type","
GEOMETRY
","
A spatial geometry type, based on the ""com."
"Functions (Aggregate)","AVG","
AVG ( [ DISTINCT ] { numeric } )
","
The average (mean) value."
"Functions (Aggregate)","BIT_AND","
BIT_AND(expression)
","
The bitwise AND of all non-null values."
"Functions (Aggregate)","BIT_OR","
BIT_OR(expression)
","
The bitwise OR of all non-null values."
"Functions (Aggregate)","BOOL_AND","
BOOL_AND(boolean)
","
Returns true if all expressions are true."
"Functions (Aggregate)","BOOL_OR","
BOOL_OR(boolean)
","
Returns true if any expression is true."
"Functions (Aggregate)","COUNT","
COUNT( { * | { [ DISTINCT ] expression } } )
","
The count of all row, or of the non-null values."
"Functions (Aggregate)","GROUP_CONCAT","
GROUP_CONCAT ( [ DISTINCT ] string
[ ORDER BY { expression [ ASC | DESC ] } [,...] ]
[ SEPARATOR expression ] )
","
Concatenates strings with a separator."
"Functions (Aggregate)","MAX","
MAX(value)
","
The highest value."
"Functions (Aggregate)","MIN","
MIN(value)
","
The lowest value."
"Functions (Aggregate)","SUM","
SUM( [ DISTINCT ] { numeric } )
","
The sum of all values."
"Functions (Aggregate)","SELECTIVITY","
SELECTIVITY(value)
","
Estimates the selectivity (0-100) of a value."
"Functions (Aggregate)","STDDEV_POP","
STDDEV_POP( [ DISTINCT ] numeric )
","
The population standard deviation."
"Functions (Aggregate)","STDDEV_SAMP","
STDDEV_SAMP( [ DISTINCT ] numeric )
","
The sample standard deviation."
"Functions (Aggregate)","VAR_POP","
VAR_POP( [ DISTINCT ] numeric )
","
The population variance (square of the population standard deviation)."
"Functions (Aggregate)","VAR_SAMP","
VAR_SAMP( [ DISTINCT ] numeric )
","
The sample variance (square of the sample standard deviation)."
"Functions (Numeric)","ABS","
ABS ( { numeric } )
","
See also Java ""Math."
"Functions (Numeric)","ACOS","
ACOS(numeric)
","
Calculate the arc cosine."
"Functions (Numeric)","ASIN","
ASIN(numeric)
","
Calculate the arc sine."
"Functions (Numeric)","ATAN","
ATAN(numeric)
","
Calculate the arc tangent."
"Functions (Numeric)","COS","
COS(numeric)
","
Calculate the trigonometric cosine."
"Functions (Numeric)","COSH","
COSH(numeric)
","
Calculate the hyperbolic cosine."
"Functions (Numeric)","COT","
COT(numeric)
","
Calculate the trigonometric cotangent (""1/TAN(ANGLE)"")."
"Functions (Numeric)","SIN","
SIN(numeric)
","
Calculate the trigonometric sine."
"Functions (Numeric)","SINH","
SINH(numeric)
","
Calculate the hyperbolic sine."
"Functions (Numeric)","TAN","
TAN(numeric)
","
Calculate the trigonometric tangent."
"Functions (Numeric)","TANH","
TANH(numeric)
","
Calculate the hyperbolic tangent."
"Functions (Numeric)","ATAN2","
ATAN2(numeric, numeric)
","
Calculate the angle when converting the rectangular coordinates to polar coordinates."
"Functions (Numeric)","BITAND","
BITAND(long, long)
","
The bitwise AND operation."
"Functions (Numeric)","BITGET","
BITGET(long, int)
","
Returns true if and only if the first parameter has a bit set in the
position specified by the second parameter."
"Functions (Numeric)","BITOR","
BITOR(long, long)
","
The bitwise OR operation."
"Functions (Numeric)","BITXOR","
BITXOR(long, long)
","
The bitwise XOR operation."
"Functions (Numeric)","MOD","
MOD(long, long)
","
The modulo operation."
"Functions (Numeric)","CEILING","
{ CEILING | CEIL } (numeric)
","
See also Java ""Math."
"Functions (Numeric)","DEGREES","
DEGREES(numeric)
","
See also Java ""Math."
"Functions (Numeric)","EXP","
EXP(numeric)
","
See also Java ""Math."
"Functions (Numeric)","FLOOR","
FLOOR(numeric)
","
See also Java ""Math."
"Functions (Numeric)","LOG","
{ LOG | LN } (numeric)
","
See also Java ""Math."
"Functions (Numeric)","LOG10","
LOG10(numeric)
","
See also Java ""Math."
"Functions (Numeric)","RADIANS","
RADIANS(numeric)
","
See also Java ""Math."
"Functions (Numeric)","SQRT","
SQRT(numeric)
","
See also Java ""Math."
"Functions (Numeric)","PI","
PI()
","
See also Java ""Math."
"Functions (Numeric)","POWER","
POWER(numeric, numeric)
","
See also Java ""Math."
"Functions (Numeric)","RAND","
{ RAND | RANDOM } ( [ int ] )
","
Calling the function without parameter returns the next a pseudo random number."
"Functions (Numeric)","RANDOM_UUID","
{ RANDOM_UUID | UUID } ()
","
Returns a new UUID with 122 pseudo random bits."
"Functions (Numeric)","ROUND","
ROUND(numeric [, digitsInt])
","
Rounds to a number of digits, or to the nearest long if the number of digits if not set."
"Functions (Numeric)","ROUNDMAGIC","
ROUNDMAGIC(numeric)
","
This function rounds numbers in a good way, but it is slow."
"Functions (Numeric)","SECURE_RAND","
SECURE_RAND(int)
","
Generates a number of cryptographically secure random numbers."
"Functions (Numeric)","SIGN","
SIGN ( { numeric } )
","
Returns -1 if the value is smaller 0, 0 if zero, and otherwise 1."
"Functions (Numeric)","ENCRYPT","
ENCRYPT(algorithmString, keyBytes, dataBytes)
","
Encrypts data using a key."
"Functions (Numeric)","DECRYPT","
DECRYPT(algorithmString, keyBytes, dataBytes)
","
Decrypts data using a key."
"Functions (Numeric)","HASH","
HASH(algorithmString, dataBytes, iterationInt)
","
Calculate the hash value using an algorithm, and repeat this process for a number of iterations."
"Functions (Numeric)","TRUNCATE","
{ TRUNC | TRUNCATE } ( { {numeric, digitsInt} | timestamp | date | timestampString } )
","
Truncates to a number of digits (to the next value closer to 0)."
"Functions (Numeric)","COMPRESS","
COMPRESS(dataBytes [, algorithmString])
","
Compresses the data using the specified compression algorithm."
"Functions (Numeric)","EXPAND","
EXPAND(bytes)
","
Expands data that was compressed using the COMPRESS function."
"Functions (Numeric)","ZERO","
ZERO()
","
Returns the value 0."
"Functions (String)","ASCII","
ASCII(string)
","
Returns the ASCII value of the first character in the string."
"Functions (String)","BIT_LENGTH","
BIT_LENGTH(string)
","
Returns the number of bits in a string."
"Functions (String)","LENGTH","
{ LENGTH | CHAR_LENGTH | CHARACTER_LENGTH } ( string )
","
Returns the number of characters in a string."
"Functions (String)","OCTET_LENGTH","
OCTET_LENGTH(string)
","
Returns the number of bytes in a string."
"Functions (String)","CHAR","
{ CHAR | CHR } ( int )
","
Returns the character that represents the ASCII value."
"Functions (String)","CONCAT","
CONCAT(string, string [,...])
","
Combines strings."
"Functions (String)","CONCAT_WS","
CONCAT_WS(separatorString, string, string [,...])
","
Combines strings with separator."
"Functions (String)","DIFFERENCE","
DIFFERENCE(string, string)
","
Returns the difference between the sounds of two strings."
"Functions (String)","HEXTORAW","
HEXTORAW(string)
","
Converts a hex representation of a string to a string."
"Functions (String)","RAWTOHEX","
RAWTOHEX(string)
","
Converts a string to the hex representation."
"Functions (String)","INSTR","
INSTR(string, searchString, [, startInt])
","
Returns the location of a search string in a string."
"Functions (String)","INSERT Function","
INSERT(originalString, startInt, lengthInt, addString)
","
Inserts a additional string into the original string at a specified start position."
"Functions (String)","LOWER","
{ LOWER | LCASE } ( string )
","
Converts a string to lowercase."
"Functions (String)","UPPER","
{ UPPER | UCASE } ( string )
","
Converts a string to uppercase."
"Functions (String)","LEFT","
LEFT(string, int)
","
Returns the leftmost number of characters."
"Functions (String)","RIGHT","
RIGHT(string, int)
","
Returns the rightmost number of characters."
"Functions (String)","LOCATE","
LOCATE(searchString, string [, startInt])
","
Returns the location of a search string in a string."
"Functions (String)","POSITION","
POSITION(searchString, string)
","
Returns the location of a search string in a string."
"Functions (String)","LPAD","
LPAD(string, int[, paddingString])
","
Left pad the string to the specified length."
"Functions (String)","RPAD","
RPAD(string, int[, paddingString])
","
Right pad the string to the specified length."
"Functions (String)","LTRIM","
LTRIM(string)
","
Removes all leading spaces from a string."
"Functions (String)","RTRIM","
RTRIM(string)
","
Removes all trailing spaces from a string."
"Functions (String)","TRIM","
TRIM ( [ { LEADING | TRAILING | BOTH } [ string ] FROM ] string )
","
Removes all leading spaces, trailing spaces, or spaces at both ends, from a string."
"Functions (String)","REGEXP_REPLACE","
REGEXP_REPLACE(inputString, regexString, replacementString [, flagsString])
","
Replaces each substring that matches a regular expression."
"Functions (String)","REGEXP_LIKE","
REGEXP_LIKE(inputString, regexString [, flagsString])
","
Matches string to a regular expression."
"Functions (String)","REPEAT","
REPEAT(string, int)
","
Returns a string repeated some number of times."
"Functions (String)","REPLACE","
REPLACE(string, searchString [, replacementString])
","
Replaces all occurrences of a search string in a text with another string."
"Functions (String)","SOUNDEX","
SOUNDEX(string)
","
Returns a four character code representing the sound of a string."
"Functions (String)","SPACE","
SPACE(int)
","
Returns a string consisting of a number of spaces."
"Functions (String)","STRINGDECODE","
STRINGDECODE(string)
","
Converts a encoded string using the Java string literal encoding format."
"Functions (String)","STRINGENCODE","
STRINGENCODE(string)
","
Encodes special characters in a string using the Java string literal encoding format."
"Functions (String)","STRINGTOUTF8","
STRINGTOUTF8(string)
","
Encodes a string to a byte array using the UTF8 encoding format."
"Functions (String)","SUBSTRING","
{ SUBSTRING | SUBSTR } ( string, startInt [, lengthInt ] )
","
Returns a substring of a string starting at a position."
"Functions (String)","UTF8TOSTRING","
UTF8TOSTRING(bytes)
","
Decodes a byte array in the UTF8 format to a string."
"Functions (String)","XMLATTR","
XMLATTR(nameString, valueString)
","
Creates an XML attribute element of the form ""name=value""."
"Functions (String)","XMLNODE","
XMLNODE(elementString [, attributesString [, contentString [, indentBoolean]]])
","
Create an XML node element."
"Functions (String)","XMLCOMMENT","
XMLCOMMENT(commentString)
","
Creates an XML comment."
"Functions (String)","XMLCDATA","
XMLCDATA(valueString)
","
Creates an XML CDATA element."
"Functions (String)","XMLSTARTDOC","
XMLSTARTDOC()
","
Returns the XML declaration."
"Functions (String)","XMLTEXT","
XMLTEXT(valueString [, escapeNewlineBoolean])
","
Creates an XML text element."
"Functions (String)","TO_CHAR","
TO_CHAR(value [, formatString[, nlsParamString]])
","
Oracle-compatible TO_CHAR function that can format a timestamp, a number, or text."
"Functions (String)","TRANSLATE","
TRANSLATE(value , searchString, replacementString]])
","
Oracle-compatible TRANSLATE function that replaces a sequence of characters in a string with another set of characters."
"Functions (Time and Date)","CURRENT_DATE","
{ CURRENT_DATE [ () ] | CURDATE() | SYSDATE | TODAY }
","
Returns the current date."
"Functions (Time and Date)","CURRENT_TIME","
{ CURRENT_TIME [ () ] | CURTIME() }
","
Returns the current time."
"Functions (Time and Date)","CURRENT_TIMESTAMP","
{ CURRENT_TIMESTAMP [ ( [ int ] ) ] | NOW( [ int ] ) }
","
Returns the current timestamp."
"Functions (Time and Date)","DATEADD","
{ DATEADD| TIMESTAMPADD } (unitString, addIntLong, timestamp)
","
Adds units to a timestamp."
"Functions (Time and Date)","DATEDIFF","
{ DATEDIFF | TIMESTAMPDIFF } (unitString, aTimestamp, bTimestamp)
","
Returns the the number of crossed unit boundaries between two timestamps."
"Functions (Time and Date)","DAYNAME","
DAYNAME(date)
","
Returns the name of the day (in English)."
"Functions (Time and Date)","DAY_OF_MONTH","
DAY_OF_MONTH(date)
","
Returns the day of the month (1-31)."
"Functions (Time and Date)","DAY_OF_WEEK","
DAY_OF_WEEK(date)
","
Returns the day of the week (1 means Sunday)."
"Functions (Time and Date)","DAY_OF_YEAR","
DAY_OF_YEAR(date)
","
Returns the day of the year (1-366)."
"Functions (Time and Date)","EXTRACT","
EXTRACT ( { YEAR | YY | MONTH | MM | WEEK | DAY | DD | DAY_OF_YEAR
| DOY | HOUR | HH | MINUTE | MI | SECOND | SS | MILLISECOND | MS }
FROM timestamp )
","
Returns a specific value from a timestamps."
"Functions (Time and Date)","FORMATDATETIME","
FORMATDATETIME ( timestamp, formatString
[ , localeString [ , timeZoneString ] ] )
","
Formats a date, time or timestamp as a string."
"Functions (Time and Date)","HOUR","
HOUR(timestamp)
","
Returns the hour (0-23) from a timestamp."
"Functions (Time and Date)","MINUTE","
MINUTE(timestamp)
","
Returns the minute (0-59) from a timestamp."
"Functions (Time and Date)","MONTH","
MONTH(timestamp)
","
Returns the month (1-12) from a timestamp."
"Functions (Time and Date)","MONTHNAME","
MONTHNAME(date)
","
Returns the name of the month (in English)."
"Functions (Time and Date)","PARSEDATETIME","
PARSEDATETIME(string, formatString
[, localeString [, timeZoneString]])
","
Parses a string and returns a timestamp."
"Functions (Time and Date)","QUARTER","
QUARTER(timestamp)
","
Returns the quarter (1-4) from a timestamp."
"Functions (Time and Date)","SECOND","
SECOND(timestamp)
","
Returns the second (0-59) from a timestamp."
"Functions (Time and Date)","WEEK","
WEEK(timestamp)
","
Returns the week (1-53) from a timestamp."
"Functions (Time and Date)","YEAR","
YEAR(timestamp)
","
Returns the year from a timestamp."
"Functions (System)","ARRAY_GET","
ARRAY_GET(arrayExpression, indexExpression)
","
Returns one element of an array."
"Functions (System)","ARRAY_LENGTH","
ARRAY_LENGTH(arrayExpression)
","
Returns the length of an array."
"Functions (System)","ARRAY_CONTAINS","
ARRAY_CONTAINS(arrayExpression, value)
","
Returns a boolean true if the array contains the value."
"Functions (System)","AUTOCOMMIT","
AUTOCOMMIT()
","
Returns true if auto commit is switched on for this session."
"Functions (System)","CANCEL_SESSION","
CANCEL_SESSION(sessionInt)
","
Cancels the currently executing statement of another session."
"Functions (System)","CASEWHEN Function","
CASEWHEN(boolean, aValue, bValue)
","
Returns 'a' if the boolean expression is true, otherwise 'b'."
"Functions (System)","CAST","
CAST(value AS dataType)
","
Converts a value to another data type."
"Functions (System)","COALESCE","
{ COALESCE | NVL } (aValue, bValue [,...])
","
Returns the first value that is not null."
"Functions (System)","CONVERT","
CONVERT(value, dataType)
","
Converts a value to another data type."
"Functions (System)","CURRVAL","
CURRVAL( [ schemaName, ] sequenceString )
","
Returns the current (last) value of the sequence, independent of the session."
"Functions (System)","CSVREAD","
CSVREAD(fileNameString [, columnsString [, csvOptions ] ] )
","
Returns the result set of reading the CSV (comma separated values) file."
"Functions (System)","CSVWRITE","
CSVWRITE ( fileNameString, queryString [, csvOptions [, lineSepString] ] )
","
Writes a CSV (comma separated values)."
"Functions (System)","DATABASE","
DATABASE()
","
Returns the name of the database."
"Functions (System)","DATABASE_PATH","
DATABASE_PATH()
","
Returns the directory of the database files and the database name, if it is file based."
"Functions (System)","DECODE","
DECODE(value, whenValue, thenValue [,...])
","
Returns the first matching value."
"Functions (System)","DISK_SPACE_USED","
DISK_SPACE_USED(tableNameString)
","
Returns the approximate amount of space used by the table specified."
"Functions (System)","FILE_READ","
FILE_READ(fileNameString [,encodingString])
","
Returns the contents of a file."
"Functions (System)","FILE_WRITE","
FILE_WRITE(blobValue, fileNameString)
","
Write the supplied parameter into a file."
"Functions (System)","GREATEST","
GREATEST(aValue, bValue [,...])
","
Returns the largest value that is not NULL, or NULL if all values are NULL."
"Functions (System)","IDENTITY","
IDENTITY()
","
Returns the last inserted identity value for this session."
"Functions (System)","IFNULL","
IFNULL(aValue, bValue)
","
Returns the value of 'a' if it is not null, otherwise 'b'."
"Functions (System)","LEAST","
LEAST(aValue, bValue [,...])
","
Returns the smallest value that is not NULL, or NULL if all values are NULL."
"Functions (System)","LOCK_MODE","
LOCK_MODE()
","
Returns the current lock mode."
"Functions (System)","LOCK_TIMEOUT","
LOCK_TIMEOUT()
","
Returns the lock timeout of the current session (in milliseconds)."
"Functions (System)","LINK_SCHEMA","
LINK_SCHEMA(targetSchemaString, driverString, urlString,
userString, passwordString, sourceSchemaString)
","
Creates table links for all tables in a schema."
"Functions (System)","MEMORY_FREE","
MEMORY_FREE()
","
Returns the free memory in KB (where 1024 bytes is a KB)."
"Functions (System)","MEMORY_USED","
MEMORY_USED()
","
Returns the used memory in KB (where 1024 bytes is a KB)."
"Functions (System)","NEXTVAL","
NEXTVAL ( [ schemaName, ] sequenceString )
","
Returns the next value of the sequence."
"Functions (System)","NULLIF","
NULLIF(aValue, bValue)
","
Returns NULL if 'a' is equals to 'b', otherwise 'a'."
"Functions (System)","NVL2","
NVL2(testValue, aValue, bValue)
","
If the test value is null, then 'b' is returned."
"Functions (System)","READONLY","
READONLY()
","
Returns true if the database is read-only."
"Functions (System)","ROWNUM","
{ ROWNUM() } | { ROW_NUMBER() OVER() }
","
Returns the number of the current row."
"Functions (System)","SCHEMA","
SCHEMA()
","
Returns the name of the default schema for this session."
"Functions (System)","SCOPE_IDENTITY","
SCOPE_IDENTITY()
","
Returns the last inserted identity value for this session for the current scope
(ie."
"Functions (System)","SESSION_ID","
SESSION_ID()
","
Returns the unique session id number for the current database connection."
"Functions (System)","SET","
SET(@variableName, value)
","
Updates a variable with the given value."
"Functions (System)","TABLE","
{ TABLE | TABLE_DISTINCT } ( { name dataType = expression } [,...] )
","
Returns the result set."
"Functions (System)","TRANSACTION_ID","
TRANSACTION_ID()
","
Returns the current transaction id for this session."
"Functions (System)","TRUNCATE_VALUE","
TRUNCATE_VALUE(value, precisionInt, forceBoolean)
","
Truncate a value to the required precision."
"Functions (System)","USER","
{ USER | CURRENT_USER } ()
","
Returns the name of the current user of this session."
"Functions (System)","H2VERSION","
H2VERSION()
","
Returns the H2 version as a String."
"System Tables","Information Schema","
INFORMATION_SCHEMA
","
To get the list of system tables, execute the statement SELECT * FROM
INFORMATION_SCHEMA."
"System Tables","Range Table","
SYSTEM_RANGE(start, end)
","
Contains all values from start to end (this is a dynamic table)."
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