mysql while 循环中断等效

mysql while loop Break equivalent

提问by Shah

What would be an equivalent of a break in a while loop for mysql?

什么相当于 mysql 的 while 循环中的中断？

  WHILE (ctr < i)
  DO ......

    SET cnt = (SELECT COUNT(*) FROM temp_results WHERE result = "true");
    IF cnt > 0 THEN
      SELECT cnt;
      BREAK;
    END IF;

Thanks

谢谢

回答by Shah

got it.

知道了。

myloop: WHILE (ctr < i)
DO 
   …

   SET cnt = (SELECT COUNT(*) FROM temp_results WHERE result = "true");
   IF cnt > 0 THEN
      SELECT cnt;
      LEAVE myloop;
   END IF;
END WHILE myloop;

回答by p.campbell

You might be interested in a REPEATloop:

您可能对REPEAT循环感兴趣：

REPEAT  
    SET cnt = (SELECT COUNT(*) FROM temp_results WHERE result = "true");
UNTIL cnt > 0 
END REPEAT;