Syntax of gbase8s database incompatible with for update clause

Include FOR UPDATE Clause SELECT Statements must meet the following restrictions ：

This statement can select data from only one table .

This statement cannot include any aggregate functions .

The statement may not include any of the following clauses or keywords ：DISTINCT、EXCEPT、FOR READ ONLY、

GROUP BY、INTO TEMP、INTERSECT、INTO EXTERNAL、MINUS、ORDER BY、

UNION、UNIQUE.

The... That associates the cursor with the statement DECLARE The statement may not include FOR UPDATE keyword .

This statement is only used in ESQL/C Routine and （ Within a transaction ） stay DB-Access Utility is valid . example

Such as , Don't be in SPL Issue it within the routine .

To get information on how to exclude for one FOR UPDATE Clause SELECT Statement declaration update Cursor information , Please refer to

reading Use FOR UPDATE Options .

stay SPL Update cursor in routine

You are not allowed to SPL Of FOREACH Of the statement SELECT . . . INTO Included in segment FOR UPDATE keyword . However ,

SPL Routines can provide FOR UPDATE The function of the cursor

By means of FOREACH Statement cursor name ,

And then use UPDATE or DELETE Statement WHERE CURRENT OF cursor Clause , The same

FOREACH The one in the loop cursor The current line of the .