安装的所有实例都应该显示在Microsoft管理控制台的服务管理单元中。如果需要获取实例名，请执行“开始|运行|类型的服务”。查找所有带有“Sql Server(实例名)”的条目。

安装的所有实例都应该显示在Microsoft管理控制台的服务管理单元中。如果需要获取实例名，请执行“开始|运行|类型的服务”。查找所有带有“Sql Server(实例名)”的条目。

If you just want to see what's installed on the machine you're currently logged in to, I think the most straightforward manual process is to just open the SQL Server Configuration Manager (from the Start menu), which displays all the SQL Services (and only SQL services) on that hardware (running or not). This assumes SQL Server 2005, or greater; dotnetengineer's recommendation to use the Services Management Console will show you all services, and should always be available (if you're running earlier versions of SQL Server, for example).

If you're looking for a broader discovery process, however, you might consider third party tools such as SQLRecon and SQLPing, which will scan your network and build a report of all SQL Service instances found on any server to which they have access. It's been a while since I've used tools like this, but I was surprised at what they found (namely, a handful of instances that I didn't know existed). YMMV. You might Google for details, but I believe this page has the relevant downloads: http://www.sqlsecurity.com/Tools/FreeTools/tabid/65/Default.aspx

——T-SQL查询查找机器上已安装的实例列表

DECLARE @GetInstances TABLE
( Value nvarchar(100),
 InstanceNames nvarchar(100),
 Data nvarchar(100))

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

Select InstanceNames from @GetInstances 

我也有同样的问题。“osql -L”命令只显示服务器列表，但不显示实例名(只显示本地SQL server的实例)。 通过Wireshark, sqlbrowser.exe(可以在SQL安装的共享文件夹中找到)，我找到了解决我的问题的方法。

本地实例由注册表项解析。远程实例通过UDP广播(端口1434)和SMB进行解析。 使用"sqlbrowser.exe -c"列出请求。

My configuration uses 1 physical and 3 virtual network adapters. If I used the "osql -L" command the sqlbrowser displayed a request from one of the virtual adaptors (which is in another network segment), instead of the physical one. osql selects the adpater by its metric. You can see the metric with command "route print". For my configuration the routing table showed a lower metric for teh virtual adapter then for the physical. So I changed the interface metric in the network properties by deselecting automatic metric in the advanced network settings. osql now uses the physical adapter.

命令OSQL -L和sqlmd -L将显示网络上的所有实例。

如果你想要一个服务器上所有实例的列表，并且不喜欢编写脚本或编程，可以这样做:

启动Windows任务管理器 勾选“显示来自所有用户的进程”或相同的复选框 按照“映像名称”对进程进行排序 找到所有sqlsrvr.exe映像

实例应该在“用户名”列中以MSSQL$INSTANCE_NAME的形式列出。

我从认为这个可怜的服务器正在运行63个实例，到意识到它正在运行3个实例(其中一个在CPU负载方面表现得完全像个恶霸……)