限制MySQL的REPEAT

Question

我運行下面的查詢在MySQL

REPEAT 
    INSERT IGNORE INTO tableB 
     SELECT a.column_name, a.level+1 
     FROM tableA AS a 
    UNTIL Row_Count() = 0 END REPEAT; 

，但我想提出一個限制它，使它停止重複，如果a.level得到上述10（或ROW_COUNT（）= 0 ）。我將如何做到這一點？

Answer 1

REPEAT 
    INSERT IGNORE INTO tableB 
     SELECT a.column_name, a.level+1 
     FROM tableA AS a 
     WHERE a.level <= 10 
    UNTIL Row_Count() = 0 END REPEAT; 

或者我不明白。