MS SQL 数据类型

不是拼SQL语句的页面存储过程

ALTER PROCEDURE [dbo].[GetUsersList]
@BigClassID int=0,--大类别ID
@SmallClassID int=0 ,--小类别ID
@pageindex int=1,
@pagesize int=3,
@ret int output --共几条
AS
set rowcount @pagesize
if @SmallClassID>0
begin
select * from(
select id,BigClassName,SmallClassName,UserName,Corporation,r ......

将数据库表中的数据转为sql中的insert语句

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
--将表数据生成SQL脚本的存储过程 ......

[SQL删除] SQL语句中delete, drop, truncate比较

DELETE from SCOTT.EMP;
DROP from SCOTT.EMP;
TRUNCATE from EMP;
相同点
truncate和不带where子句的delete, 以及drop都会删除表内的数据
不同点:
1. truncate和 delete只删除数据不删除表的结构(定义)
drop语句将删除表的结构被依赖的约束(constrain),触发器(trigge ......

SQL重复记录查询

1、查找表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断
select * from people
where peopleId in (select peopleId from people group by peopleId having count(peopleId) > 1)
2、删除表中多余的重复记录，重复记录是根据单个� ......