Oracle数据库按正则切割字符串

SELECT regexp_substr(‘161,83,66,81‘,‘[0-9]+‘,1,LEVEL) FROM dual
CONNECT BY  level <= length(‘161,83,66,81‘) - length(regexp_replace(‘161,83,66,81‘,‘,‘,‘‘)) + 1;

SELECT ID ,DEPARTMENTID ,LASTNAME  FROM HRMRESOURCE WHERE LOGINID IS NOT NULL AND DEPARTMENTID IN
(SELECT regexp_substr(t.deptid,‘[0-9]+‘,1,LEVEL) FROM (SELECT (CASE to_char(DEPARTMENTID) WHEN to_char(161)
THEN 161||‘,‘||81||‘,‘||66||‘,‘||83 ELSE to_char(DEPARTMENTID) END ) deptid FROM HRMRESOURCE WHERE DEPARTMENTID = 161) t
CONNECT BY  level <= length(t.deptid) - length(regexp_replace(t.deptid,‘,‘,‘‘)) + 1) AND LASTNAME NOT LIKE ‘%离职%‘;