方法1:
select substr('123456789',length('123456789')-6+1,6) from dual;
方法2:
SELECT name, RIGHT(certid,4) as certid
FROM mjsxd_newuser_day
本文共 190 字,大约阅读时间需要 1 分钟。
方法1:
select substr('123456789',length('123456789')-6+1,6) from dual;
方法2:
SELECT name, RIGHT(certid,4) as certid
FROM mjsxd_newuser_day
转载于:https://www.cnblogs.com/MaxElephant/p/9987764.html