提交 735f3467 authored 作者: Thomas Mueller Graf's avatar Thomas Mueller Graf

Documentation

上级 7ce90b13
...@@ -105,9 +105,9 @@ ALTER TABLE tableName ALTER COLUMN columnName ...@@ -105,9 +105,9 @@ ALTER TABLE tableName ALTER COLUMN columnName
Changes the data type of a column, rename a column, Changes the data type of a column, rename a column,
change the identity value, or change the selectivity." change the identity value, or change the selectivity."
"Commands (DDL)","ALTER TABLE DROP COLUMN"," "Commands (DDL)","ALTER TABLE DROP COLUMN","
ALTER TABLE tableName DROP COLUMN [ IF EXISTS ] columnName ALTER TABLE tableName DROP COLUMN [ IF EXISTS ] ( columnName [,...] )
"," ","
Removes a column from a table." Removes column(s) from a table."
"Commands (DDL)","ALTER TABLE DROP CONSTRAINT"," "Commands (DDL)","ALTER TABLE DROP CONSTRAINT","
ALTER TABLE tableName DROP { CONSTRAINT [ IF EXISTS ] constraintName | PRIMARY KEY } ALTER TABLE tableName DROP { CONSTRAINT [ IF EXISTS ] constraintName | PRIMARY KEY }
"," ","
......
Markdown 格式
0%
您添加了 0 到此讨论。请谨慎行事。
请先完成此评论的编辑!
注册 或者 后发表评论