sql2008常用命令

-- 查询非系统数据库  
Select name FROM Master.. SysDatabases where dbid>4  

-- 选择water数据库下的所有表  
 use [water] SELECT name FROM sysobjects WHERE xtype = 'U' Or xtype = 'S'  

select * from 表 where 字段 between ‘起始’ and ‘结束’

update 表 set typeID =’2′ where CardCode between ‘起始’ and ‘结束’
几个简单的基本的sql语句
选择：select * from table1 where 范围
插入：insert into table1(field1,field2) values(value1,value2)
删除：delete from table1 where 范围
更新：update table1 set field1=value1 where 范围
查找：select * from table1 where field1 like ’%value1%’ —like的语法很精妙，查资料!
排序：select * from table1 order by field1,field2 [desc]
总数：select count as totalcount from table1
求和：select sum(field1) as sumvalue from table1
平均：select avg(field1) as avgvalue from table1
最大：select max(field1) as maxvalue from table1
最小：select min(field1) as minvalue from table1