CreateTableBuilder<TColumns>.CheckConstraint(String, String) 方法

定義

命名空間:

Microsoft.EntityFrameworkCore.Migrations.Operations.Builders

組件:

Microsoft.EntityFrameworkCore.Relational.dll

套件:

Microsoft.EntityFrameworkCore.Relational v9.0.0

來源:

CreateTableBuilder.cs

在資料表上設定檢查條件約束。

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddCheckConstraintOperation> CheckConstraint (string name, string sql);

abstract member CheckConstraint : string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddCheckConstraintOperation>
override this.CheckConstraint : string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddCheckConstraintOperation>

Public Overridable Function CheckConstraint (name As String, sql As String) As OperationBuilder(Of AddCheckConstraintOperation)

參數

name

String

條件約束名稱。

sql

String

CHECK 條件約束中使用的 sql 運算式。

傳回

OperationBuilder<AddCheckConstraintOperation>

相同的產生器，以便鏈結多個呼叫。