CreateTableBuilder<TColumns>.CheckConstraint(String, String) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Configures a check constraint on the table.
public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.CreateCheckConstraintOperation> CheckConstraint (string name, string sql);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.CreateCheckConstraintOperation>
override this.CheckConstraint : string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.CreateCheckConstraintOperation>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 CreateCheckConstraintOperation)Public Overridable Function CheckConstraint (name As String, sql As String) As OperationBuilder(Of AddCheckConstraintOperation)Parameters
- name
- String
The constraint name.
- sql
- String
The sql expression used in the CHECK constraint.
Returns
The same builder so that multiple calls can be chained.
Applies to
Samarbeta med oss på GitHub
Källan för det här innehållet finns på GitHub, där du även kan skapa och granska ärenden och pull-begäranden. Se vår deltagarguide för mer information.
Entity Framework