在開發(fā)數據庫系統(tǒng)的過程中，經常要寫很多的存儲過程。為了統(tǒng)一格式和簡化開發(fā)過程，我編寫一些存儲過程，用來自動生成存儲過程。下面就為您簡單介紹一下它們。其中一個用于生成Insert過程，另一個用于生成Update過程。

Sp_GenInsert
該過程運行后，它為給定的表生成一個完整的Insert過程。如果原來的表有標識列，您得將生成的過程中的SET IDNTITY_INSERT ON 語句手工刪除。
語法如下
sp_GenInsert < Table Name >,< Stored Procedure Name >
以northwind 數據庫為例
sp_GenInsert 'Employees', 'INS_Employees'
最后會生成一個Insert存儲過程。利用它，您可以作進一步的開發(fā)。

Sp_GenUpdate
它會為一個表生成update存儲過程。語法如下：
sp_GenUpdate < Table Name >,< Primary Key >,< Stored Procedure Name >
以northwind 數據庫為例
sp_GenUpdate 'Employees','EmployeeID','UPD_Employees'
運行后生成如下所示的存儲過程：
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

使用以上的兩個存儲過程，節(jié)省了我不少時間。特別是在改變了表結構后，重新構造各個存儲過程的過程中。您可以改寫這兩個程序，來自動生成別的存儲過程。

SQL Server編寫存儲過程小工具
以下是兩個存儲過程的源程序
/*===========================================================

語法: sp_GenInsert <Table Name>,<Stored Procedure Name>
以northwind 數據庫為例
sp_GenInsert 'Employees', 'INS_Employees'

注釋：如果您在Master系統(tǒng)數據庫中創(chuàng)建該過程，那您就可以在您服務器上所有的數據庫中使用該過程。

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

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