查询 拆分以逗号隔开的 A,B,C,D 字符串

Posted 2021-03-06 redlittleface

SELECT REGEXP_SUBSTR(‘A,B,C,D‘, ‘[^,]+‘,  1,  ROWNUM)

  FROM DUAL 

CONNECT BY ROWNUM <= REGEXP_COUNT(‘A,B,C,D‘, ‘[,]‘, 1) + 1;