When creating a table, the precision must now be at least as large as the scale.

h2/src/main/org/h2/command/Parser.java

@@ -3682,6 +3682,9 @@ public class Parser {
         // MySQL compatibility
         readIf("UNSIGNED");
         int type = dataType.type;
+        if (scale > precision) {
+            throw DbException.get(ErrorCode.INVALID_VALUE_2, Integer.toString(scale), "scale (precision = " + precision + ")");
+        }
         Column column = new Column(columnName, type, precision, scale, displaySize);
         if (templateColumn != null) {
             column.setNullable(templateColumn.isNullable());
@@ -5194,7 +5197,6 @@ public class Parser {
      *
      * @param sql the code snippet
      * @return the expression object
-     * @throws SQLException if the code snippet could not be parsed
      */
     public Expression parseExpression(String sql) {
         parameters = New.arrayList();

h2/src/test/org/h2/test/test-1.3.txt

 --- special grammar and test cases ---------------------------------------------------------------------------------------------
+create table test(d decimal(1, 2));
+> exception
+
 call truncate_value('Test 123', 4, false);
 > 'Test'
 > ------