c# - 我是否需要安装 microsoft sql server 或者它默认随 visual studio community 2017 一起提供？

Question

我已经安装了 visual studio community 2017。现在我想在我的应用程序中使用数据库，但是我

TITLE: Error
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A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476

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ADDITIONAL INFORMATION:

The system cannot find the file specified

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BUTTONS:

OK
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我有人能告诉我我做错了什么吗？

Answer 1

您必须安装 MSSQL。

MSSQL 服务器 https://www.microsoft.com/en-us/sql-server/sql-server-downloads

或

速成版 https://www.microsoft.com/en-us/sql-server/sql-server-editions-express