|
概述
--------------------------------------------------------------------------------
在平时的工作中，我会经常的碰到这样需要合并SQL脚本的问题。如，有很多的SQL脚本文件，需要按照一定的先后顺序，再生成一个合并SQL脚本文件，然后再发布到用户SQL Server服务器上。
合并SQL脚本文件，最直接的方法就是新建1个空白的SQL脚本文件，再把需要合并的SQL脚本文件内容复制到新建的SQL文件中。当初，我合并脚本的操作方法与刚说的有类似。我在Microsoft SQL Server Management Studio(MSSMS)新建一个查询，再把要合并的SQL脚本文件，一个一个的打开，并复制内容到新建查询中，然后生成合并脚本文件。
上面的方法，对于几个SQL脚本文件合并来说，似乎没什么问题。但是，当我们要合并的脚本很多，一文件一个文件的内容复制，是比较繁琐的事情，要是能有1个简单合并脚本工具就最好不过了。下面介绍我写的两个合并SQL脚本文件的存储过程.
第1个存储过程，只要调用sp_OACreate实现合并SQL脚本文件。
<div class="codetitle"><a style="CURSOR: pointer" data="38113" class="copybut" id="copybut38113" onclick="doCopy('code38113')"> 代码如下:<div class="codebody" id="code38113">
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脚本文件(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'合并脚本-'+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),121),'-',''),':',' ','.','')
Set @ScriptCount=0
/读取脚本文件内容/
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(合计 '+rtrim(@ScriptCount)+' 各脚本文件). /'+Char(13)+Char(10)+ N'Go'+Char(13)+Char(10)
/写入合并脚本文件/
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' 读写文件的时候发生错误 '
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' 合并脚本完成 '
Print N'合并后脚本文件: '+@NewFileName
End
Go
调用上面存储过程前，需要确认启用 OLE Automation Procedures和xp_cmdshell 选项：
<div class="codetitle"><a style="CURSOR: pointer" data="29827" class="copybut" id="copybut29827" onclick="doCopy('code29827')"> 代码如下:<div class="codebody" id="code29827">
调用上面存储过程前，需要确认启用 OLE Automation Procedures和xp_cmdshell 选项：
<div class="codetitle"><a style="CURSOR: pointer" data="7800" class="copybut" id="copybut7800" onclick="doCopy('code7800')"> 代码如下:<div class="codebody" id="code7800">
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
测试：
<div class="codetitle"><a style="CURSOR: pointer" data="47321" class="copybut" id="copybut47321" onclick="doCopy('code47321')"> 代码如下:<div class="codebody" id="code47321">
use master
GO
Exec master.dbo.sp_ScriptMerge
@Path = 'C:UsersAdministratorDesktoptemp',-- nvarchar(1024)
@FilesList = '',-- nvarchar(max)
@NewFileName = '合并脚本20110905.sql' -- nvarchar(1024)
合并脚本完成 合并后脚本文件: C:UsersAdministratorDesktoptemp合并脚本20110905.sql第2个是CLR存储过程，使用C#代码实现合并SQL脚本文件。
--------------------------------------------------------------------------------
C#代码：
<div class="codetitle"><a style="CURSOR: pointer" data="28758" class="copybut" id="copybut28758" onclick="doCopy('code28758')"> 代码如下:<div class="codebody" id="code28758">
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 = "合并脚本" + DateTime.Now.ToString("yyyyMMdd") + ".sql";
}
SqlContext.Pipe.Send(NewFileName.ToString()); //打印已合并的SQL文件名
// 1.获得SQL脚本列表
if (FilesList != "")
{
strFiles = FilesList.Split(','); //筛分SQL脚本文件名列表,以","分隔
}
else
{
strFiles = new string[myFileInfo.Length];
for (int i = 0; i < myFileInfo.Length; i++)
{
strFiles[i] = myFileInfo[i].Name;
}
}
// 2.合并脚本
SqlContext.Pipe.Send("【SQL脚本文件列表】:n--------------------------------------------");
StreamWriter SW = new StreamWriter(Path + @"" + NewFileName,true,Encoding.Unicode); //使用Unicode编码
SW.WriteLine(@"Gon/============ " + strScriptNr + "====Start===================================/nGon"); //记录生成的合并脚本编号&合并动作的开始位置
foreach (string strFile in strFiles)
{
if (strFile !=NewFileName)
{
intCount += 1;
SW.WriteLine(@"/ " + strScriptNr +@" ("+intCount+@"): " + strFile + "/nGon"); //记录合并哪一个脚本文件
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 + " 个文件)===================================*/nGon"); //记录生成的合并脚本文件个数&合并动作的结束位置
SW.Close();
SqlContext.Pipe.Send("nn【合成后文件】:n--------------------------------------------n" + NewFileName);
}
catch (System.Exception e)
{
SqlContext.Pipe.Send("n在方法SQLScriptMerge内发生错误： nn" + e.ToString());
}
}
}
存储过程代码：
<div class="codetitle"><a style="CURSOR: pointer" data="11005" class="copybut" id="copybut11005" onclick="doCopy('code11005')"> 代码如下:<div class="codebody" id="code11005">
Use master
GO
--启动CLR
Exec sp_configure 'clr enable',1
Go
Reconfigure
GO
--先设置数据库选项
Alter Database Master Set TRUSTWORTHY On
Go
--存储过程
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:TestObjectsISTestScriptMergeScriptMergebinDebugScriptMerge.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存储过程代码是在SQL Server 2005 & Microsoft Visual Studio 2005下运行通过。 （编辑：李大同）
【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!
|
