标签:create 技术 images img 问题 image exist style sel
1. select id, case when name = ‘Test1‘ then 1 else 0 END as isexist ,qty,createddate createdby from 表名;
2.
常见面试sql 语句问题
原文地址:http://www.cnblogs.com/lpblogs/p/7390328.html