标签:table 小工具 code arc color insert har varchar blog
做的小工具用到了sqlite,在查询上较sqlserver还是稍有差异,将常用操作汇总一下,慢慢收集和整理。
--查询版本
SELECT sqlite_version() AS ‘SQLite Version‘;
CREATE TABLE [Users] ( [ID] integer, [UserName] nvarchar(254), [Password] nvarchar(254), [Group] int ); insert into users values(1,‘test1‘,‘password‘,1); insert into users values(2,‘test2‘,‘password‘,3); insert into users values(3,‘test3‘,‘password‘,1); insert into users values(4,‘test4‘,‘password‘,2);
--字段拼接 || select username||‘-‘||password as userinfo from users
--多行合并 Group_CONCAT SELECT [group],GROUP_CONCAT(username) users FROM users GROUP BY [group]
--top select * from users limit 0,3
标签:table 小工具 code arc color insert har varchar blog
原文地址:http://www.cnblogs.com/jingsha/p/6256516.html