概述
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在平時的工作中，我會經常的碰到這樣需要合并SQL腳本的問題。如，有很多的SQL腳本文件，需要按照一定的先后順序，再生成一個合并SQL腳本文件，然后再發布到用戶SQL Server服務器上。
合并SQL腳本文件，最直接的方法就是新建1個空白的SQL腳本文件，再把需要合并的SQL腳本文件內容復制到新建的SQL文件中。當初，我合并腳本的操作方法與剛說的有類似。我在Microsoft SQL Server Management Studio(MSSMS)新建一個查詢，再把要合并的SQL腳本文件，一個一個的打開，并復制內容到新建查詢中，然后生成合并腳本文件。
上面的方法，對于幾個SQL腳本文件合并來說，似乎沒什么問題。但是，當我們要合并的腳本很多，一文件一個文件的內容復制，是比較繁瑣的事情，要是能有1個簡單合并腳本工具就最好不過了。下面介紹我寫的兩個合并SQL腳本文件的存儲過程.
第1個存儲過程，只要調用sp_OACreate實現合并SQL腳本文件。
復制代碼 代碼如下:
use master
Go
if object_id('sp_ScriptMerge') Is Not Null
Drop proc sp_ScriptMerge
Go
Create Proc sp_ScriptMerge
(
@Path nvarchar(1024),
@FilesList nvarchar(max)= null,
@NewFileName nvarchar(1024)=null
)
As
/*合并SQL腳本文件(SQL)V1.0 Andy 2011-9-1*/
Declare
@ScriptNr nchar(21),
@subdirectoryStr nvarchar(512),
@Dir nvarchar(1024),
@ScriptCount int
Declare @subdirectoryTB Table (subdirectory nvarchar(512),depth smallint,[file] smallint)
Declare @tmp table(row smallint identity primary key,fileName nvarchar(512))
Set Nocount on
if right(@Path,1)>'\' Set @Path=@Path+''
If Isnull(@NewFileName,'')='' Set @NewFileName=N'合并腳本-'+Convert(nvarchar(8),getdate(),112)
if lower(right(@NewFileName,4))>'.sql' Set @NewFileName=@NewFileName+'.sql'
Set @NewFileName=@Path+@NewFileName
Set @ScriptNr='Nr: '+Replace(replace(Replace(replace(convert(nvarchar(23),getdate(),121),'-',''),':',''),' ',''),'.','')
Set @ScriptCount=0
/*讀取腳本文件內容*/
if @FilesList >''
Begin
Set @FilesList='Select N'''+replace(@FilesList,',',''' Union All Select N''')+''''
Insert into @tmp([fileName]) Exec(@FilesList)
End
if object_id('Tempdb..#') Is Not Null Drop Table #
Create table #(row int identity(1,1) Primary key,text nvarchar(max))
Insert into @subdirectoryTB Exec xp_dirtree @Path,1,1
Declare cur_file cursor for
Select a.subdirectory
From @subdirectoryTB As a
left Join @tmp As b ON b.fileName=a.subdirectory
Where a.[file]=1 And a.subdirectory like '%.sql'
And (b.fileName=a.subdirectory Or Not Exists(Select 1 From @tmp))
Order By isnull(b.row,0),a.subdirectory
Open cur_file
fetch next From cur_file into @subdirectoryStr
While @@FETCH_STATUS = 0
Begin
Set @ScriptCount=@ScriptCount+1
Insert into #(text) Select +Char(13)+Char(10)+ N'Go'+Char(13)+Char(10)+ N'/* '+@ScriptNr+' ('+rtrim(@ScriptCount)+'): '+@subdirectoryStr+' */'+Char(13)+Char(10)+ N'Go'+Char(13)+Char(10)
Set @Dir='Type '+@Path+'"'+@subdirectoryStr+'"'
Insert into #(text)
Exec sys.xp_cmdshell @Dir
fetch next From cur_file into @subdirectoryStr
End
Close cur_file
Deallocate cur_file
if @ScriptCount >0 Insert into #(text) Select +Char(13)+Char(10)+ N'Go'+Char(13)+Char(10)+ N'/* '+@ScriptNr+' 合并完成(合計 '+rtrim(@ScriptCount)+' 各腳本文件). */'+Char(13)+Char(10)+ N'Go'+Char(13)+Char(10)
/*寫入合并腳本文件*/
if @ScriptCount>0
Begin
Declare @object int,
@FileID int,
@hr int,
@src varchar(255),
@desc varchar(255),
@row int,
@text nvarchar(max)
Exec @hr=sp_OACreate 'Scripting.FileSystemObject',@object output
If @hr > 0 Goto File_ErrorHandler
Exec @hr = sp_OAMethod @object,'CreateTextFile',@FileID OUTPUT, @NewFileName
If @hr > 0 Goto File_ErrorHandler
Set @row=1
While Exists(Select 1 From # Where row=@row)
Begin
Set @text=(Select text From # Where row=@row)
Exec @hr = sp_OAMethod @FileID, 'WriteLine', NULL, @text
Set @row=@row +1
End
Goto File_Done
File_ErrorHandler:
Print N'*********** 讀寫文件的時候發生錯誤 ***********'
Exec @hr=sp_OAGetErrorInfo @object, @src OUT, @desc OUT
Select convert(varbinary(4),@hr) As hr, @src As Source, @desc As Description
File_Done:
Exec @hr = sp_OADestroy @FileID
Exec @hr = sp_OADestroy @object
Print N'*********** 合并腳本完成 ***********'
Print N'合并后腳本文件: '+@NewFileName
End
Go
調用上面存儲過程前，需要確認啟用 OLE Automation Procedures和xp_cmdshell 選項：
復制代碼 代碼如下:
調用上面存儲過程前，需要確認啟用 OLE Automation Procedures和xp_cmdshell 選項：
復制代碼 代碼如下:
Exec sys.sp_configure @configname = 'show advanced options',@configvalue = 1
reconfigure
go
Exec sys.sp_configure @configname = 'xp_cmdshell',@configvalue = 1
reconfigure
Go
Exec sys.sp_configure @configname = 'Ole Automation Procedures',@configvalue = 1
reconfigure
Go
測試：
復制代碼 代碼如下:
use master
GO
Exec master.dbo.sp_ScriptMerge
@Path = 'C:\Users\Administrator\Desktop\temp', -- nvarchar(1024)
@FilesList = '', -- nvarchar(max)
@NewFileName = '合并腳本20110905.sql' -- nvarchar(1024)
*********** 合并腳本完成 ***********合并后腳本文件: C:\Users\Administrator\Desktop\temp\合并腳本20110905.sql第2個是CLR存儲過程，使用C#代碼實現合并SQL腳本文件。
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C#代碼：
復制代碼 代碼如下:
using System;
using System.Data;
using System.Data.SqlClient;
using Microsoft.SqlServer.Server;
using System.Data.SqlTypes;
using System.IO;
using System.Text;
public class clScriptMerge
{
[Microsoft.SqlServer.Server.SqlProcedure]
public static void SQLScriptMerge(string Path, string FilesList, string NewFileName)
{
try
{
string[] strFiles ;
FileInfo[] myFileInfo = (new DirectoryInfo(Path)).GetFiles("*.sql");
string strScriptNr = @"Nr" + DateTime.Now.ToString("yyyyMMddHHmmssFFF");
int intCount=0;
if (NewFileName == null || NewFileName=="")
{
NewFileName = "合并腳本" + DateTime.Now.ToString("yyyyMMdd") + ".sql";
}
SqlContext.Pipe.Send(NewFileName.ToString()); //打印已合并的SQL文件名
// 1.獲得SQL腳本列表
if (FilesList != "")
{
strFiles = FilesList.Split(','); //篩分SQL腳本文件名列表,以","分隔
}
else
{
strFiles = new string[myFileInfo.Length];
for (int i = 0; i myFileInfo.Length; i++)
{
strFiles[i] = myFileInfo[i].Name;
}
}
// 2.合并腳本
SqlContext.Pipe.Send("【SQL腳本文件列表】:\n--------------------------------------------");
StreamWriter SW = new StreamWriter(Path + @"\" + NewFileName, true, Encoding.Unicode); //使用Unicode編碼
SW.WriteLine(@"Go\n/*============ " + strScriptNr + "====Start===================================*/\nGo\n"); //記錄生成的合并腳本編號合并動作的開始位置
foreach (string strFile in strFiles)
{
if (strFile !=NewFileName)
{
intCount += 1;
SW.WriteLine(@"/* " + strScriptNr +@" ("+intCount+@"): " + strFile + "*/\nGo\n"); //記錄合并哪一個腳本文件
using (StreamReader SR = new StreamReader(Path + @"\" + strFile, Encoding.Default))
{
string line;
while ((line = SR.ReadLine()) != null)
{
SW.WriteLine(line);
}
SR.Close();
}
SqlContext.Pipe.Send(strFile.ToString()); //打印已合并的SQL文件名
}
}
SW.WriteLine(@"/*============ " + strScriptNr + "====End (一共 " + intCount + " 個文件)===================================*/\nGo\n"); //記錄生成的合并腳本文件個數合并動作的結束位置
SW.Close();
SqlContext.Pipe.Send("\n\n【合成后文件】:\n--------------------------------------------\n" + NewFileName);
}
catch (System.Exception e)
{
SqlContext.Pipe.Send("\n在方法SQLScriptMerge內發生錯誤： \n\n" + e.ToString());
}
}
}
存儲過程代碼：
復制代碼 代碼如下:
Use master
GO
--啟動CLR
Exec sp_configure 'clr enable',1
Go
Reconfigure
GO
--先設置數據庫選項
Alter Database Master Set TRUSTWORTHY On
Go
--存儲過程
If object_id('sp_ScriptMerge2') Is Not Null
Drop Proc sp_ScriptMerge2
Go
If Exists(Select 1 From sys.assemblies Where Name=N'ScriptMerge')
Drop Assembly ScriptMerge
Go
Create Assembly ScriptMerge
From 'E:\Test\Objects\ISTest\ScriptMerge\ScriptMerge\bin\Debug\ScriptMerge.dll'
create proc sp_ScriptMerge2
(
@Path nvarchar(1024),
@FilesList nvarchar(max),
@NewFileName nvarchar(1024)
)
As External Name ScriptMerge.clScriptMerge.SQLScriptMerge
Go
以上的CLR存儲過程代碼是在SQL Server 2005 Microsoft Visual Studio 2005下運行通過。
