SQL SERVER编写存储过程小工具

【 tulaoshi.com - Web开发 】

在开发数据库系统的过程中，经常要写很多的存储过程。为了统一格式和简化开发过程，我编写一些存储过程，用来自动生成存储过程。下面就为您简单介绍一下它们。其中一个用于生成Insert过程，另一个用于生成Update过程。 


Sp_GenInsert 

该过程运行后，它为给定的表生成一个完整的Insert过程。如果原来的表有标识列，您得将生成的过程中的SET IDNTITY_INSERT ON 语句手工删除。 

语法如下 

sp_GenInsert  Table Name , Stored Procedure Name  

以northwind 数据库为例 

sp_GenInsert 'Employees', 'INS_Employees' 

最后会生成一个Insert存储过程。利用它，您可以作进一步的开发。 


Sp_GenUpdate 

它会为一个表生成update存储过程。语法如下： 

sp_GenUpdate  Table Name , Primary Key , Stored Procedure Name  

以northwind 数据库为例 

sp_GenUpdate 'Employees','EmployeeID','UPD_Employees' 

运行后生成如下所示的存储过程： 

Create Procedure UPD_Employees 

@EmployeeID int 

@LastName nvarchar(40) , 

@FirstName nvarchar(20) , 

@Title nvarchar(60) , 

@TitleofCourtesy nvarchar(50) , 

@BirthDate datetime , 

@HireDate datetime , 

@Address nvarchar(120) , 

@City nvarchar(30) , 

@Region nvarchar(30) , 

@PostalCode nvarchar(20) , 

@Country nvarchar(30) , 

@HomePhone nvarchar(48) , 

@Extension nvarchar(8) , 

@Phote image , 

@Notes ntext , 

@ReportsTo int , 

@PhotoPath nvarchar(510) 

AS 

UPDATE Employees 

SET 

LastName = @LastName, 

FirstName = @FirstName, 

Title = @Title, 

TitleofCourtesy = @TitleofCourtesy, 

BirthDate = @BirthDate, 

HireDate = @HireDate, 

Address = @Address, 

City = @City, 

Regin = @Regin, 

PostalCode = @PostCode, 

Country = @Country, 

HomePhone = @HomePhone, 

Extension = @Extension, 

Photo = @Photo 

Notes = @Notes， 

ReportsTo = @ReportsTo, 

PhotoPath = @PhotoPath 

WHERE EmployeeID = @EmployeeID 


使用以上的两个存储过程，节省了我不少时间。特别是在改变了表结构后，重新构造各个存储过程的过程中。您可以改写这两个程序，来自动生成别的存储过程。

SQL Server编写存储过程小工具
以下是两个存储过程的源程序
/*===========================================================

语法: sp_GenInsert Table Name,Stored Procedure Name
以northwind 数据库为例
sp_GenInsert 'Employees', 'INS_Employees'

注释：如果您在Master系统数据库中创建该过程，那您就可以在您服务器上所有的数据库中使用该过程。

=============================================================*/

CREATE procedure sp_GenInsert
@TableName varchar(130),
@ProcedureName varchar(130)
as
set nocount on

declare @maxcol int,
@TableID int
--itlearner.com
set @TableID = object_id(@TableName)

select @MaxCol = max(colorder)
from syscolumns
where id = @TableID

select 'Create Procedure ' + rtrim(@ProcedureName) as type,0 as colorder into #TempProc
union
select convert(char(35),'@' + syscolumns.name)
+ rtrim(systypes.name)
+ case when rtrim(systypes.name) in ('binary','char','nchar','nvarchar','varbinary','varchar') then '(' + rtrim(convert(char(4),syscolumns.length)) + ')'
when rtrim(systypes.name) not in ('binary','char','nchar','nvarchar','varbinary','varchar') then ' '
end
+ case when colorder @maxcol then ','
when colorder = @maxcol then ' '
end
as type,
colorder
from syscolumns
join systypes on syscolumns.xtype = systypes.xtype
where id = @TableID and systypes.name 'sysname'
union
select 'AS',@maxcol + 1 as colorder
union
select 'INSERT INTO ' + @TableName,@maxcol + 2 as colorder
union
select '(',@maxcol + 3 as colorder
union
select syscolumns.name
+ case when colorder @maxcol then ','
when colorder = @maxcol then ' '
end
as type,
colorder + @maxcol + 3 as colorder
from syscolumns
join systypes on syscolumns.xtype = systypes.xtype
where id = @TableID and systypes.name 'sysname'
union
select ')',(2 * @maxcol) + 4 as colorder
union
select 'VALUES',(2 * @maxcol) + 5 as colorder
union
select '(',(2 * @maxcol) + 6 as colorder
union
select '@' + syscolumns.name
+ case when colorder @maxcol then ','
when colorder = @maxcol then ' '
end
as type,
colorder + (2 * @maxcol + 6) as colorder
from syscolumns
join systypes on syscolumns.xtype = systypes.xtype
where id = @TableID and systypes.name 'sysname'
union
select ')',(3 * @maxcol) + 7 as colorder
order by colorder

select type from #tempproc order by colorder

（本文来源于图老师网站，更多请访问http://www.tulaoshi.com/webkaifa/）

drop table #tempproc

SQL Server编写存储过程小工具
功能：为给定表创建Update存储过程
语法： sp_GenUpdate Table Name,Primary Key,Stored Procedure Name
以northwind 数据库为例
sp_GenUpdate 'Employees','EmployeeID','UPD_Employees'

（本文来源于图老师网站，更多请访问http://www.tulaoshi.com/webkaifa/）

注释：如果您在Master系统数据库中创建该过程，那您就可以在您服务器上所有的数据库中使用该过程。

===========================================================*/
CREATE procedure sp_GenUpdate
@TableName varchar(130),
@PrimaryKey varchar(130),
@ProcedureName varchar(130)
as
set nocount on

declare @maxcol int,
@TableID int
--itlearner.com
set @TableID = object_id(@TableName)

select @MaxCol = max(colorder)
from syscolumns
where id = @TableID

select 'Create Procedure ' + rtrim(@ProcedureName) as type,0 as colorder into #TempProc
union
select convert(char(35),'@' + syscolumns.name)
+ rtrim(systypes.name)
+ case when rtrim(systypes.name) in ('binary','char','nchar','nvarchar','varbinary','varchar') then '(' + rtrim(convert(char(4),syscolumns.length)) + ')'
when rtrim(systypes.name) not in ('binary','char','nchar','nvarchar','varbinary','varchar') then ' '
end
+ case when colorder @maxcol then ','
when colorder = @maxcol then ' '
end
as type,
colorder
from syscolumns
join systypes on syscolumns.xtype = systypes.xtype
where id = @TableID and systypes.name 'sysname'
union
select 'AS',@maxcol + 1 as colorder
union
select 'UPDATE ' + @TableName,@maxcol + 2 as colorder
union
select 'SET',@maxcol + 3 as colorder
union
select syscolumns.name + ' = @' + syscolumns.name
+ case when colorder @maxcol then ','
when colorder = @maxcol then ' '
end
as type,
colorder + @maxcol + 3 as colorder
from syscolumns
join systypes on syscolumns.xtype = systypes.xtype
where id = @TableID and syscolumns.name @PrimaryKey and systypes.name 'sysname'
union
select 'WHERE ' + @PrimaryKey + ' = @' + @PrimaryKey,(2 * @maxcol) + 4 as colorder
order by colorder

select type from #tempproc order by colorder

（本文来源于图老师网站，更多请访问http://www.tulaoshi.com/webkaifa/）

drop table #tempproc
/*＝＝＝＝＝＝＝源程序结束＝＝＝＝＝＝＝＝＝*/