SqlServerMigrationsSqlGenerator.DropDefaultConstraint Method

  • Reference

Definition

Namespace:
Microsoft.EntityFrameworkCore.Migrations
Assembly:
Microsoft.EntityFrameworkCore.SqlServer.dll
Package:
Microsoft.EntityFrameworkCore.SqlServer v1.0.6
Package:
Microsoft.EntityFrameworkCore.SqlServer v1.1.6
Package:
Microsoft.EntityFrameworkCore.SqlServer v2.0.3
Package:
Microsoft.EntityFrameworkCore.SqlServer v2.1.11
Package:
Microsoft.EntityFrameworkCore.SqlServer v2.2.6
Package:
Microsoft.EntityFrameworkCore.SqlServer v3.0.0
Package:
Microsoft.EntityFrameworkCore.SqlServer v3.1.0
Package:
Microsoft.EntityFrameworkCore.SqlServer v5.0.0
Package:
Microsoft.EntityFrameworkCore.SqlServer v6.0.0
Package:
Microsoft.EntityFrameworkCore.SqlServer v7.0.0
Package:
Microsoft.EntityFrameworkCore.SqlServer v8.0.0

Generates a SQL fragment to drop default constraints for a column.

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

Parameters

schema
String

The schema that contains the table.

tableName
String

The table that contains the column.

columnName
String

The column.

builder
MigrationCommandListBuilder

The command builder to use to add the SQL fragment.

Applies to