表alertlabel中记录变字段

如何用alertlabel表得到下面数据

实现的sql语句

select  a.AlertID,
(select Value from alertlabel where AlertID=a.AlertID and Label='host') as host,
(select Value from alertlabel where AlertID=a.AlertID and Label='job') as job
from (select AlertID from alertlabel group by AlertID) a;

参考

• sql表记录值变成字段:https://blog.csdn.net/tx_yu/article/details/4805171