SqlServerMigrationsSqlGenerator.DropDescription 方法

定義

命名空間:

Microsoft.EntityFrameworkCore.Migrations

組件:

Microsoft.EntityFrameworkCore.SqlServer.dll

套件:

Microsoft.EntityFrameworkCore.SqlServer v9.0.0

來源:

SqlServerMigrationsSqlGenerator.cs

針對資料表和資料行的描述產生卸載命令。

protected virtual void DropDescription (Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder, string? schema, string table, string? column = default, bool omitVariableDeclarations = false);

abstract member DropDescription : Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder * string * string * string * bool -> unit
override this.DropDescription : Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder * string * string * string * bool -> unit

Protected Overridable Sub DropDescription (builder As MigrationCommandListBuilder, schema As String, table As String, Optional column As String = Nothing, Optional omitVariableDeclarations As Boolean = false)

參數

builder

MigrationCommandListBuilder

用來建置命令的命令產生器。

schema

String

資料表的結構描述。

table

String

資料表的名稱。

column

String

資料行名稱。

omitVariableDeclarations

Boolean

指出是否 @defaultSchema 應該省略變數宣告。