linshangx1-优快云博客

转载跟着别人做的一些数据库练习，答案都是自己写的，

-SQL基本查询where, between, like, and, or, in, not, order by, as, distinct,max/minsum, avg, count, group by（根据一个或多个列队结果集进行分组）HAVING在SQL中增加HAVING句的主要原因是因为，WHERE关键字无法与合计函数一起使用

2016-11-17 14:08:30 455

转载 SQL Learning(转自博客园停留的风)

http://www.cnblogs.com/yank/p/3672478.html

2016-11-15 13:56:12 263

原创 SQL SERVER OPERATION

insertinto Table1 values('1','aaa','a');insertinto Table1 values('2','bbb','b');insertinto Table1 values('3','ccc','c');select*from Table1 where Table1.user_id=

2016-11-15 13:32:24 533

I have been working more than 5 years. Many technology have been used but I never try to write them down. I did not realized this is a big question until i have an interview in a company which i'm loo

2016-11-15 13:28:43 263