You can use the REPEAT statement to execute a statement repeatedly.
The syntax is as follows:
[begin_label:] REPEAT
statement_list
UNTIL search_condition
END REPEAT [end_label]
statement_list in the REPEAT statement is executed repeatedly until the result of the search_condition expression is True. Therefore, REPEAT will enter a loop at least once. statement_list consists of one or more SQL statements. Each SQL statement ends with a semicolon (;). You can use label to label a REPEAT statement.
Here is an example:
obclient> DELIMITER //
obclient> CREATE PROCEDURE rep_proc(p1 INT)
BEGIN
SET @x = 0;
REPEAT
SET @x = @x + 1;
UNTIL @x > p1 END REPEAT;
END
//
Query OK, 0 rows affected
obclient> CALL rep_proc(100)//
Query OK, 0 rows affected
obclient> SELECT @x//
+------+
| @x |
+------+
| 101 |
+------+
1 row in set
