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

定义

命名空间:

Microsoft.EntityFrameworkCore.Migrations.Operations.Builders

程序集:

Microsoft.EntityFrameworkCore.Relational.dll

包:

Microsoft.EntityFrameworkCore.Relational v9.0.0

Source:

CreateTableBuilder.cs

对表配置检查约束。

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)

参数

name

String

约束名称。

sql

String

CHECK 约束中使用的 sql 表达式。

返回

OperationBuilder<AddCheckConstraintOperation>

同一生成器，以便可以链接多个调用。