存储过程， 生成SQL语句
USE [sfaecrm]
GO
/****** 对象: StoredProcedure [dbo].[proc_insert] 脚本日期: 05/29/2009 06:16:07 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER proc [dbo].[proc_insert] (@tablename varchar(256))
as
begin
set nocount on
declare @sqlstr varchar(4000)
declare @sqlstr1 varchar(4000)
declare @sqlstr2 varchar(4000)
select @sqlstr='select ''insert '+@tablename
select @sqlstr1=''
select @sqlstr2=' ('
select @sqlstr1= ' values ( ''+'
select @sqlstr1=@sqlstr1+col+'+'',''+' ,@sqlstr2=@sqlstr2+name +',' from (select case
-- when a.xtype =173 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.length*2+2)+'),'+a.name +')'+' end'
when a.xtype =127 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(20),'+a.name +')'+' end'
when a.xtype =104 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(1),'+a.name +')'+' end'
when a.xtype =175 then 'case when '+a.name+' is null then ''NULL'' else '+'''''''''+'+'replace('+a.name+','''''''','''''''''''')' + '+'''''''''+' end'
when a.xtype =61 then 'case when '+a.name+' is null then ''NULL'' else '+'''''''''+'+'convert(varchar(23),'+a.name +',121)'+ '+'''''''''+' end'
when a.xtype =106 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar(
相关文档：
http://zhanglei1286.blog.163.com/blog/static/1895797120091112113019600/
在后台代码里：
SQL 2000:
static string StrConn = "server=.;uid=sa;pwd=sa;database=MyCUDS";
SQL2005:
con = new SqlConnection(@"Server=.\SQLExpress;Database=db_CMS;Persist Security Info=True;User ID=sa;Password=Masslong");
......
最近在学习oracle的时候遇到一个问题，老是弄不清楚where 和having的区别，在网上查一查，感觉还可以，把以下我查的资料推荐给大家。
在select 语句中可以使用group by 子句将行划分成较小的组，然后，使用聚组函数返回每一个组的汇总信息，另外，可以使用having子句限制返回的结果集。group&n ......
下面所有的SQL语句都是针对前缀为wp_的表，如果你的表前缀不是wp_，请做相应的修改
1.更改wordpress安装和首页地址
如果你更换域名或者把wordpress的安装目录进行了变动就需要进行修改，
UPDATE wp_options SET option_value = replace(option_value, ‘旧网址’, ‘新网址’) WHERE option_name ......
On BULK COLLECT
By Steven Feuerstein Oracle ACE
Best practices for knowing your LIMIT and kicking %NOTFOUND
I have started using BULK COLLECT whenever I need to fetch large volumes of data. This has caused me some trouble with my DBA, however. He is complaining that although my programs mig ......
DECLARE @temp TABLE(
id INT,
[name] VARCHAR(50),
class VARCHAR(50)
)
INSERT INTO @temp
SELECT 1,'a','A'
UNION ALL SELECT 2,'b','C'
UNION ALL SELECT 3,'c','B'
UNION ALL SELECT 4,'d','C'
UNION ALL SELECT 5,'e','B'
UNION ALL SELECT 6,'f','A'
SELECT * from @temp AS _temp WHERE [name] IN
(
......
