SQL Server 得到行号的SQL
SQL Server 得到行号的SQL
使用临时表：
select id=identity(int,1,1),value into #temp from YourTable
select * from #temp
drop table #temp
取得第11到20行记录：
select IDENTITY(int, 1,1) AS ID_Num,* into #temp from 表
select * from #temp where ID_Num>10 and ID_Num<=20
或
SELECT Top @PageSize *
from T
WHERE SortField NOT IN (SELECT TOP @PageSize * @Pagei SortField
from T
ORDER BY SortField
)
ORDER BY SortField
REF:http://topic.csdn.net/t/20021022/21/1116380.html
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我们 ......
MySQL:
SELECT column from table
ORDER BY RAND()
LIMIT 1
PostgreSQL:
SELECT column from table
ORDER BY RANDOM()
LIMIT 1
Microsoft SQL Server:
SELECT TOP 1 column from table
ORDER BY NEWID()
IBM DB2
SELECT column, RAND() as IDX
from table
ORDER BY IDX FETCH FIRST 1 ROWS ONLY
Thanks Ti ......
应一个朋友的要求，贴上收藏的SQL常用分页的办法～～
表中主键必须为标识列，[ID] int IDENTITY (1,1)
1.分页方案一：(利用Not In和SELECT TOP分页)
语句形式：
SELECT TOP 页记录数量 *
from 表名
WHERE (ID NOT IN
(SELECT TOP (每页行数*(页数-1)) ID
from 表名
ORDER BY ......
--显示版本号，当前日期
SELECT VERSION(),CURRENT_DATE(),NOW();
--免费的计算器
SELECT (20+5)*4 AS RESULT,SIN(PI()/3);
--创建数据库
CREATE DATABASE databasename;
--删除数据库
DROP DATABASE databasename;
--显示当前存在的数据库
SHOW DATABASES;
--选择数据库
USE ......
Suppose we have a recursive hierarchy stored in a relational database and we want to write it to XML. This might be for a variety of reasons – e.g. as a pre-cached input to a UI control, to export to another system using a pre-defined format, etc.
In SQL Server 2000, in order to ......
