有时候我们需要按照in条件里的id顺序输出结果,可sql语句在不加order by的时候是按照asc排序的,下边的sql解决按照in条件顺序的id输出查询结果
MySQL写法:
SELECT * FROM EVENT WHERE eventId IN(443,419,431,440,420,414,509) ORDER BY INSTR(',443,419,431,440,420,414,509,',CONCAT(',',eventId,','))
Oracle写法:
select name from order where oderid in(111,222,333,444,555,666)order by instr('111,222,333,444,555,666',orderid)
sqlserver写法: