如何从T-SQL获取当前实例名称

如何使用T-SQL脚本获取当前连接的SQL Server服务器和实例名称？

Answer 1

刚刚find答案，在这个SO问题 （字面上，在问题内，没有任何答案）：

SELECT @@servername 

返回servername \实例，只要这不是默认实例

 SELECT @@servicename 

返回实例名称，即使这是默认值（MSSQLSERVER）

Answer 2

这个怎么样：

 EXECUTE xp_regread @rootkey='HKEY_LOCAL_MACHINE', @key='SOFTWARE\Microsoft\Microsoft SQL Server\Instance Names\SQl', @value_name='MSSQLSERVER' 

这将获得实例名称。 null表示默认实例：

 SELECT SERVERPROPERTY ('InstanceName') 

http://technet.microsoft.com/en-us/library/ms174396.aspx

Answer 3

SELECT @@servername会给你数据作为server/instanceName

要只获取instanceName你应该运行select @@ServiceName查询。

Answer 4

我find了这个：

 EXECUTE xp_regread @rootkey = 'HKEY_LOCAL_MACHINE', @key = 'SOFTWARE\Microsoft\Microsoft SQL Server', @value_name = 'InstalledInstances' 

这将给你所有的实例安装在您的服务器的列表。

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SERVERPROPERTY函数的ServerName属性和@@SERVERNAME返回类似的信息。 ServerName属性提供了一起构成唯一服务器实例的Windows服务器和实例名称。 @@SERVERNAME提供当前configuration的本地服务器名称。

而当前服务器的微软例子是：

 SELECT CONVERT(sysname, SERVERPROPERTY('servername')); 

如果在Windows服务器上安装了多个SQL Server实例，并且客户端必须打开与当前连接使用的同一实例的另一个连接，则此scheme很有用。

Answer 5

为什么只停留在实例名称？ 您可以使用以下方法清点您的SQL Server环境：

 SELECT SERVERPROPERTY('ServerName') AS ServerName, SERVERPROPERTY('MachineName') AS MachineName, CASE WHEN SERVERPROPERTY('InstanceName') IS NULL THEN '' ELSE SERVERPROPERTY('InstanceName') END AS InstanceName, '' as Port, --need to update to strip from Servername. Note: Assumes Registered Server is named with Port SUBSTRING ( (SELECT @@VERSION),1, CHARINDEX('-',(SELECT @@VERSION))-1 ) as ProductName, SERVERPROPERTY('ProductVersion') AS ProductVersion, SERVERPROPERTY('ProductLevel') AS ProductLevel, SERVERPROPERTY('ProductMajorVersion') AS ProductMajorVersion, SERVERPROPERTY('ProductMinorVersion') AS ProductMinorVersion, SERVERPROPERTY('ProductBuild') AS ProductBuild, SERVERPROPERTY('Edition') AS Edition, CASE SERVERPROPERTY('EngineEdition') WHEN 1 THEN 'PERSONAL' WHEN 2 THEN 'STANDARD' WHEN 3 THEN 'ENTERPRISE' WHEN 4 THEN 'EXPRESS' WHEN 5 THEN 'SQL DATABASE' WHEN 6 THEN 'SQL DATAWAREHOUSE' END AS EngineEdition, CASE SERVERPROPERTY('IsHadrEnabled') WHEN 0 THEN 'The Always On Availability Groups feature is disabled' WHEN 1 THEN 'The Always On Availability Groups feature is enabled' ELSE 'Not applicable' END AS HadrEnabled, CASE SERVERPROPERTY('HadrManagerStatus') WHEN 0 THEN 'Not started, pending communication' WHEN 1 THEN 'Started and running' WHEN 2 THEN 'Not started and failed' ELSE 'Not applicable' END AS HadrManagerStatus, CASE SERVERPROPERTY('IsSingleUser') WHEN 0 THEN 'No' ELSE 'Yes' END AS InSingleUserMode, CASE SERVERPROPERTY('IsClustered') WHEN 1 THEN 'Clustered' WHEN 0 THEN 'Not Clustered' ELSE 'Not applicable' END AS IsClustered, '' as ServerEnvironment, '' as ServerStatus, '' as Comments