在開發(fā)數(shù)據(jù)庫系統(tǒng)的過程中，經(jīng)常要寫很多的存儲(chǔ)過程。為了統(tǒng)一格式和簡化開發(fā)過程，我編寫一些存儲(chǔ)過程，用來自動(dòng)生成存儲(chǔ)過程。下面就為您簡單介紹一下它們。其中一個(gè)用于生成Insert過程，另一個(gè)用于生成Update過程。
Sp_GenInsert
該過程運(yùn)行后，它為給定的表生成一個(gè)完整的Insert過程。如果原來的表有標(biāo)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(shù)據(jù)庫為例
sp_GenInsert 'Employees', 'INS_Employees'
最后會(huì)生成一個(gè)Insert存儲(chǔ)過程。利用它，您可以作進(jìn)一步的開發(fā)。
Sp_GenUpdate
它會(huì)為一個(gè)表生成update存儲(chǔ)過程。語法如下：
sp_GenUpdate Table Name >, Primary Key >, Stored Procedure Name >
以northwind 數(shù)據(jù)庫為例
sp_GenUpdate 'Employees','EmployeeID','UPD_Employees'
運(yùn)行后生成如下所示的存儲(chǔ)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(gè)存儲(chǔ)過程，節(jié)省了我不少時(shí)間。特別是在改變了表結(jié)構(gòu)后，重新構(gòu)造各個(gè)存儲(chǔ)過程的過程中。您可以改寫這兩個(gè)程序，來自動(dòng)生成別的存儲(chǔ)過程。
SQL Server編寫存儲(chǔ)過程小工具
以下是兩個(gè)存儲(chǔ)過程的源程序
/*===========================================================
語法: sp_GenInsert Table Name>,Stored Procedure Name>
以northwind 數(shù)據(jù)庫為例
sp_GenInsert 'Employees', 'INS_Employees'
注釋：如果您在Master系統(tǒng)數(shù)據(jù)庫中創(chuàng)建該過程，那您就可以在您服務(wù)器上所有的數(shù)據(jù)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
select type from #tempproc order by colorder
drop table #tempproc
SQL Server編寫存儲(chǔ)過程小工具
功能：為給定表創(chuàng)建Update存儲(chǔ)過程
語法： sp_GenUpdate Table Name>,Primary Key>,Stored Procedure Name>
以northwind 數(shù)據(jù)庫為例
sp_GenUpdate 'Employees','EmployeeID','UPD_Employees'
注釋：如果您在Master系統(tǒng)數(shù)據(jù)庫中創(chuàng)建該過程，那您就可以在您服務(wù)器上所有的數(shù)據(jù)庫中使用該過程。
===========================================================*/
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
drop table #tempproc
/*＝＝＝＝＝＝＝源程序結(jié)束＝＝＝＝＝＝＝＝＝*/
