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MigrationsSqlGenerator.ComputedColumnDefinition Metode

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Definisi

Ruang nama:
Microsoft.EntityFrameworkCore.Migrations
Rakitan:
Microsoft.EntityFrameworkCore.Relational.dll
Paket:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Paket:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v8.0.0

Menghasilkan fragmen SQL untuk definisi kolom komputasi untuk metadata kolom yang diberikan.

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);
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)

Parameter

schema
String

Skema yang berisi tabel, atau null untuk menggunakan skema default.

table
String

Tabel yang berisi kolom.

name
String

Nama kolom.

operation
ColumnOperation

Metadata kolom.

model
IModel

Model target yang mungkin null jika operasi ada tanpa model.

builder
MigrationCommandListBuilder

Penyusun perintah yang digunakan untuk menambahkan fragmen SQL.

Berlaku untuk