共用方式為


MigrationBuilder.AddUniqueConstraint 方法

定義

多載

AddUniqueConstraint(String, String, String, String)

建置 , AddUniqueConstraintOperation 以將新的唯一條件約束加入至資料表。

AddUniqueConstraint(String, String, String[], String)

建置 , AddUniqueConstraintOperation 將新的複合 (多資料行) 唯一條件約束新增至資料表。

AddUniqueConstraint(String, String, String, String)

來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs

建置 , AddUniqueConstraintOperation 以將新的唯一條件約束加入至資料表。

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation> AddUniqueConstraint (string name, string table, string column, string schema = default);
public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation> AddUniqueConstraint (string name, string table, string column, string? schema = default);
abstract member AddUniqueConstraint : string * string * string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation>
override this.AddUniqueConstraint : string * string * string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation>
Public Overridable Function AddUniqueConstraint (name As String, table As String, column As String, Optional schema As String = Nothing) As OperationBuilder(Of AddUniqueConstraintOperation)

參數

name
String

條件約束名稱。

table
String

將包含條件約束的資料表。

column
String

受限制的資料行。

schema
String

包含資料表的架構,或使用 null 預設架構。

傳回

允許將批註加入至作業的產生器。

備註

如需詳細資訊和範例 ,請參閱資料庫移轉

適用於

AddUniqueConstraint(String, String, String[], String)

來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs
來源:
MigrationBuilder.cs

建置 , AddUniqueConstraintOperation 將新的複合 (多資料行) 唯一條件約束新增至資料表。

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation> AddUniqueConstraint (string name, string table, string[] columns, string schema = default);
public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation> AddUniqueConstraint (string name, string table, string[] columns, string? schema = default);
abstract member AddUniqueConstraint : string * string * string[] * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation>
override this.AddUniqueConstraint : string * string * string[] * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddUniqueConstraintOperation>
Public Overridable Function AddUniqueConstraint (name As String, table As String, columns As String(), Optional schema As String = Nothing) As OperationBuilder(Of AddUniqueConstraintOperation)

參數

name
String

條件約束名稱。

table
String

將包含條件約束的資料表。

columns
String[]

受限制之資料行的已排序清單。

schema
String

包含資料表的架構,或使用 null 預設架構。

傳回

允許將批註加入至作業的產生器。

備註

如需詳細資訊和範例 ,請參閱資料庫移轉

適用於