SqlServerMigrationsSqlGenerator.DropDefaultConstraint Método

Definição

Namespace:

Microsoft.EntityFrameworkCore.Migrations

Assembly:

Microsoft.EntityFrameworkCore.SqlServer.dll

Pacote:

Microsoft.EntityFrameworkCore.SqlServer v8.0.0

Gera um fragmento SQL para remover restrições padrão para uma coluna.

protected virtual void DropDefaultConstraint (string? schema, string tableName, string columnName, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);

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

Protected Overridable Sub DropDefaultConstraint (schema As String, tableName As String, columnName As String, builder As MigrationCommandListBuilder)

Parâmetros

schema

String

O esquema que contém a tabela.

tableName

String

A tabela que contém a coluna.

columnName

String

A coluna.

builder

MigrationCommandListBuilder

O construtor de comandos a ser usado para adicionar o fragmento SQL.