"display_name"); } } 使用Add-Migration ChangeDisplayName 命令为迁移搭建基架以将这些更改应用到数据库。 运行Update-Database 命令以将新迁移应用到数据库。DisplayName 列现已重命名为 display_name:总结在本演练中,我们探讨了使用新数据库的 Code First 开发。 我们使用类定义了一个模型,然后使用该模型创建...
Enter a name for a new Blog: ADO.NET Blog All blogs in the database: ADO.NET Blog Press any key to exit... 我的数据在哪里? 按照约定,DbContext 已经为你创建了一个数据库。 如果本地 SQL Express 实例可用(默认情况下随 Visual Studio 2010 一起安装),则 Code First 已在该实例上创建了数据...
错误:1237 SQLSTATE: HY000 (ER_SLAVE_IGNORED_TABLE) 消息:由于“replicate-*-table”规则,从SQL线程忽略了查询。。 错误:1238 SQLSTATE: HY000 (ER_INCORRECT_GLOBAL_LOCAL_VAR) 消息:变量’%s’是一种%s变量。 错误:1239 SQLSTATE: 42000 (ER_WRONG_FK_DEF) 消息:对于 ’%s’: %s, 外键定义不正确。
将以下 SQL 复制到新查询中,然后右键单击该查询并选择“执行” SQL CREATETABLE[dbo].[Blogs] ( [BlogId]INTIDENTITY(1,1)NOTNULL, [Name]NVARCHAR(200)NULL, [Url]NVARCHAR(200)NULL,CONSTRAINT[PK_dbo.Blogs] PRIMARYKEYCLUSTERED ([BlogId]ASC) );CREATETABLE[dbo].[Posts] ( [PostId]INTIDENTITY(1,...
Grid View: Displays query results in a familiar grid format, allowing for easy inspection of the data. You now have the option to display results in a New Tab for a clearer, more organized view Copy Options: Right-click within the results grid to access options likeSelect All, Copy, Cop...
Code Wizardに、メッセージ「Procedure created successfully: UPLOAD_CW_IMAGES_TABLE_IMAGE」が表示されます。 オプションの「Click to display generated source:」で「View」をクリックし、生成されたソースを別のウィンドウに表示します。生成されたソースを、手順5の6gの最後に示します。 生成され...
The error stack interface will pop up after clicking "Display Error Stack", as shown below: The following table shows all error messages for remote design: Error codeError details Error code :11300104 remote design connection failed The remote server network connection failed. ...
Your connection can be expanded to display a tree representation of your schema and of the other schemas in your database. To open an object, simply click on it. You can also drag and drop items to a code editor to have the desired SQL or DML code generated. ...
Updated to .NET Core 2.1 to addressissues where some Mac users encountered connection errors Added support for Deepin Linux Updated query results display to use VS Code's new webview API Added a new experimental setting "mssql.persistQueryResultTabs" which when set to true will save your scro...
The templates are designed to be Database agnostic, so they are used for both PostgreSQL and Microsoft SQL the same, and all other supported database types. The template is passed a different instance of templates.ForeignKey instance (for each foreign key in a table). To get the Name field...