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

复制代码 代码如下:

DECLARE @Table TABLE ( instanceName sysname 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

复制代码 代码如下:

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.

复制代码 代码如下:

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;

}