Use this statement to repeat the execution of a statement list.
[ statement-label : ] [ WHILE search-condition ] LOOP statement-list END LOOP [ statement-label ]
The WHILE and LOOP statements are control statements that allow you to execute a list of SQL statements repeatedly while a search-condition evaluates to TRUE. The LEAVE statement can be used to resume execution at the first statement after the END LOOP.
If the ending statement-label is specified, it must match the beginning statement-label.
SQL/2003 Persistent Stored Module feature.
A While loop in a procedure.
... SET i = 1; WHILE i <= 10 LOOP INSERT INTO Counters( number ) VALUES ( i ); SET i = i + 1; END LOOP; ...
A labeled loop in a procedure.
SET i = 1; lbl: LOOP INSERT INTO Counters( number ) VALUES ( i ); IF i >= 10 THEN LEAVE lbl; END IF; SET i = i + 1; END LOOP lbl
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