MigrationsSqlGenerator.ComputedColumnDefinition Metodo

Definizione

Spazio dei nomi:

Microsoft.EntityFrameworkCore.Migrations

Assembly:

Microsoft.EntityFrameworkCore.Relational.dll

Pacchetto:

Microsoft.EntityFrameworkCore.Relational v8.0.0

Genera un frammento SQL per una definizione di colonna calcolata per i metadati della colonna specificati.

protected virtual void ComputedColumnDefinition (string? schema, string table, string name, Microsoft.EntityFrameworkCore.Migrations.Operations.ColumnOperation operation, Microsoft.EntityFrameworkCore.Metadata.IModel? model, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);

abstract member ComputedColumnDefinition : string * string * string * Microsoft.EntityFrameworkCore.Migrations.Operations.ColumnOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
override this.ComputedColumnDefinition : string * string * string * Microsoft.EntityFrameworkCore.Migrations.Operations.ColumnOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit

Protected Overridable Sub ComputedColumnDefinition (schema As String, table As String, name As String, operation As ColumnOperation, model As IModel, builder As MigrationCommandListBuilder)

Parametri

schema

String

Schema che contiene la tabella o null per usare lo schema predefinito.

table

String

Tabella che contiene la colonna.

name

String

Nome della colonna.

operation

ColumnOperation

Metadati della colonna.

model

IModel

Modello di destinazione che può essere null se le operazioni esistono senza un modello.

builder

MigrationCommandListBuilder

Generatore di comandi da usare per aggiungere il frammento SQL.