MigrationBuilder.AlterDatabase 方法

定義

命名空間:

Microsoft.EntityFrameworkCore.Migrations

組件:

Microsoft.EntityFrameworkCore.Relational.dll

套件:

Microsoft.EntityFrameworkCore.Relational v9.0.0

多載

AlterDatabase(String, String)

AlterDatabaseOperation建置 以改變現有的資料庫。

AlterDatabase(String, String)

來源:

MigrationBuilder.cs

AlterDatabaseOperation建置 以改變現有的資料庫。

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.AlterOperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AlterDatabaseOperation> AlterDatabase (string? collation = default, string? oldCollation = default);

abstract member AlterDatabase : string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.AlterOperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AlterDatabaseOperation>
override this.AlterDatabase : string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.AlterOperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AlterDatabaseOperation>

Public Overridable Function AlterDatabase (Optional collation As String = Nothing, Optional oldCollation As String = Nothing) As AlterOperationBuilder(Of AlterDatabaseOperation)

參數

collation

String

要套用至資料行的定序。

oldCollation

String

要套用至資料行的先前定序。

傳回

AlterOperationBuilder<AlterDatabaseOperation>

允許將批註加入至作業的產生器。

備註

如需詳細資訊和範例 ，請參閱資料庫移轉 。