Question

如何查看和获取SQL Server实例名

Answer 1

一、查看实例名时可用

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、通过注册表
HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Microsoft SQL
Server/InstalledInstance

3、用命令
sqlcmd/osql
sqlcmd -L
sqlcmd -Lc
osql
-L

获取可用实例,以下举一个例子，根据自己情况改

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) 替代为本机名就行了 ,
根据实例命名规则判断

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;
}

Answer 2

1可以从sql配置管理器的服务中查看
2可以在smss中，新建查询窗口，输入SELECT SERVERPROPERTY('InstanceName')
如果是默认实例名就会返回null

Answer 3

在服务里，找到sqlserver的服务，服务后面跟着一个括号，括号里就是实例名。
比如服务名是sqlserver(mssqlserver)，则mssqlserver就是实例名。