zz775520666 发表于 2015-7-4 14:28:32

如何查看SQL Server的实例名(运维网)

  一、
  
  查看實例名時可用 1、服务—SQL Server(实例名),默认实例为(MSSQLSERVER)
  或在连接企业管理时-查看本地实例
  2、通過注冊表 HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Microsoft SQL Server/InstalledInstance
  3、用命令
  sqlcmd/osql sqlcmd -L sqlcmd -Lc osql -L
  获取可用實例,以下舉一個例子,根據自己情況改
  DECLARE @Table TABLE ( instanceNamesysname NULL)
  insert @Table EXEC sys.xp_cmdshell 'sqlcmd -Lc'
  --LEFT(@@serverName,CHARINDEX('/',@@serverName+'/')-1) 替代為本機名就行了 , 根據實例命名規則判斷
  SELECT * FROM @Table WHERE instanceName LIKE   LEFT( @@serverName , CHARINDEX ( '/' , @@serverName + '/' )- 1)+ '%'
  
  二、
  
  --1. SELECT SERVERPROPERTY('InstanceName')
--2 sp_helpserver
--3 select @@SERVERNAME
--4 SELECT * FROM SYS.SYSSERVERS
--5 SELECT * FROM SYS.SERVERS
三、
  
  EXECUTE xp_regread @rootkey='HKEY_LOCAL_MACHINE', @key='SOFTWARE/Microsoft/Microsoft SQL Server/Instance Names/SQl', @value_name='MSSQLSERVER'
  四、
  
  Select Case When SERVERPROPERTY ('InstanceName') Is Null Then @@SERVERNAME Else SERVERPROPERTY ('InstanceName') End
  
  
  五、在本地或网络得到所有实例名
  
  1、You can do with registry reading , like my code
  using System; using Microsoft.Win32;
namespace SMOTest {   class Program   {       static void Main()       {         RegistryKey rk = Registry.LocalMachine.OpenSubKey(@"SOFTWARE/Microsoft/Microsoft SQL Server");         String[] instances = (String[])rk.GetValue("InstalledInstances");         if (instances.Length > 0)         {            foreach (String element in instances)            {               if (element == "MSSQLSERVER")                  Console.WriteLine(System.Environment.MachineName);               else                  Console.WriteLine(System.Environment.MachineName + @"/" + element);            }         }       }   } }
  
  2、You can use SQLDMO.dll to retrieve the list of SQL Server instances.The SQLDMO.dll can be found from the "C:/Program Files/Microsoft SQL Server/80/Tools/Bin" folder. Refer this assembly in your project and the following snippet would return a List Object containing the sql server instances.
  

public static List GetSQLServerInstances()
{
NameList sqlNameList = null;
Application app = null;

var sqlServers = new List();
try
{
app = new ApplicationClass();
sqlNameList = app.ListAvailableSQLServers();
foreach (string sqlServer in sqlNameList)
sqlServers.Add(sqlServer);
}
catch(Exception ex)
{
//play with the exception.
}
finally
{
if (sqlNameList != null)
sqlNameList = null;
if (app != null)
app = null;
}
return sqlServers;
}  
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