REPEAT
The REPEAT statement is used to execute a statement repeatedly.
The syntax of the REPEAT statement is as follows:
[begin_label:] REPEAT
statement_list
UNTIL search_condition
END REPEAT [end_label]
The statement_list in the REPEAT statement is executed repeatedly until the search_condition expression evaluates to True. Therefore, the REPEAT statement will execute at least once. The statement_list consists of one or more statements, each ending with a semicolon (;). You can use label to mark the REPEAT statement.
Here is an example of a REPEAT statement:
DELIMITER //
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
CALL rep_proc(100)//
Query OK, 0 rows affected
SELECT @x//
+------+
| @x |
+------+
| 101 |
+------+
1 row in set