<譯>經過PowerShell工具跨多臺服務器執行SQL腳本

有時候，當咱們並無合適的第三方工具(大部分須要付費)去管理多臺數據庫服務器，那麼如何作最省力、省心呢？！Powershell一個強大的工具，能夠很方便幫到咱們處理平常的數據庫維護工做 。簡單的幾步搞定，下面介紹一個簡單例子便於你們理解：

1，建立一個文件夾，如 D:\ExecScriptOnMultiServer

2，建立一個文本文件ServerList.txt，將全部須要管理的數據庫實例名寫到裏面，格式以下：

    SQLInstanceName1

    SQLInstanceName2

    SQLInstanceName3

　 ...

而後保存到能夠訪問到的目錄，如D:\ExecScriptOnMultiServer\ServerList.txt

 

3，將下面的Powershell腳本保存到目錄 D:\ExecScriptOnMultiServer\ExecuteQueryOnMultiServers.ps1

##Save the below powershell script in folder "D:\ExecScriptOnMultiServer\ExecuteQueryOnMultiServers.ps1"

$QueryPath= "D:\ExecScriptOnMultiServer\SQLQuery.sql"
$OutputFile = "D:\ExecScriptOnMultiServer\QueryOutput.txt"

$ExecuteQuery= Get-Content -path $QueryPath | out-string

"Results -- > `r`n`r`n" > $OutputFile

FOREACH($server in GC "D:\ExecScriptOnMultiServer\ServerList.txt")
 {
    $server 

    "---------------------------------------------------------------------------------------------------------" >> $OutputFile
    $server >> $OutputFile
    "---------------------------------------------------------------------------------------------------------" >> $OutputFile
    invoke-sqlcmd -ServerInstance $server -query $ExecuteQuery -querytimeout 65534 | ft -autosize | out-string -width 4096 >> $OutputFile
 }

4，將你要在上述ServerList文件中的服務器實例執行的SQL語句，可先寫到目錄文件D:\ExecScriptOnMultiServer\SQLQuery.sql

例如：我要對全部實例下全部數據的的版本、SP和羣集節點等信息收集，以下代碼：

declare @Nodes Varchar(100)
set @Nodes=''
 if (SERVERPROPERTY('IsClustered') = 1)
begin
select @Nodes=@Nodes+ NodeName  
+',' from sys.dm_os_cluster_nodes order by NodeName
set @Nodes=substring(@Nodes,0,LEN(@Nodes))
select 
@Nodes as HostName, 
SQLInstanceName = @@SERVERNAME,
'Yes' as IsClustered,
CAST(SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS VARCHAR(50)) As ActiveNode,
SERVERPROPERTY('edition') As SQLEdition,
Case 
  when cast(serverproperty('productversion') as varchar) like '8.%' then 'SQL2000'
       when cast(serverproperty('productversion') as varchar) like '9.%' then 'SQL2005'
       when cast(serverproperty('productversion') as varchar)  like '10.0%' then 'SQL2008'
       when cast(serverproperty('productversion') as varchar)  like '10.50.%' then 'SQL2008R2'
       when cast(serverproperty('productversion') as varchar)  like '11.%' then 'SQL2012'
  when cast(serverproperty('productversion') as varchar)  like '12.%' then 'SQL2014'
       ELSE 'SQL7.0' END +' '+
  cast(SERVERPROPERTY('productlevel') as varchar(50))+' ('+ cast(SERVERPROPERTY('productversion') as varchar(50)) + ')' as SQLVersion
end
 else 
begin
select @Nodes=CAST(SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS VARCHAR(50)) 
select 
@Nodes as HostName, 
SQLInstanceName = @@SERVERNAME,
'No' as IsClustered,
SERVERPROPERTY('edition') As SQLEdition,
Case 
  when cast(serverproperty('productversion') as varchar) like '8.%' then 'SQL2000'
       when cast(serverproperty('productversion') as varchar) like '9.%' then 'SQL2005'
       when cast(serverproperty('productversion') as varchar)  like '10.0%' then 'SQL2008'
       when cast(serverproperty('productversion') as varchar)  like '10.50.%' then 'SQL2008R2'
       when cast(serverproperty('productversion') as varchar)  like '11.%' then 'SQL2012'
  when cast(serverproperty('productversion') as varchar)  like '12.%' then 'SQL2014'
       ELSE 'SQL7.0' END +' '+
  cast(SERVERPROPERTY('productlevel') as varchar(50))+' ('+ cast(SERVERPROPERTY('productversion') as varchar(50)) + ')' as SQLVersion
end

5，開啓Window PowerShellISE程序，注意要用管理員身份啓動，打開Powershell腳本ExecuteQueryOnMultiServers.ps1，點擊執行。

執行後結果保存如代碼中標註，位置在D:\ExecScriptOnMultiServer\QueryOutput.txt　

６，或者直接在PowerShell命令行執行，

PS C:\>D:\ExecScriptOnMultiServer\ExecuteQueryOnMultiServers.ps1

小結：

PowerShell工具是很是強大的工具，特別在跨多服務器的維護中，更能體現高效。本文只是一個影子，有興趣的朋友能夠參考下面的資料學習:

PowerShell Tips

 

本文轉自: http://www.sqlservercentral.com/scripts/powershell/129948/