MigrationBuilder.CreateSequence 方法

定義

命名空間:

Microsoft.EntityFrameworkCore.Migrations

組件:

Microsoft.EntityFrameworkCore.Relational.dll

套件:

Microsoft.EntityFrameworkCore.Relational v9.0.0

多載

CreateSequence(String, String, Int64, Int32, Nullable<Int64>, Nullable<Int64>, Boolean)	CreateSequenceOperation建置 以建立新的序列。
CreateSequence<T>(String, String, Int64, Int32, Nullable<Int64>, Nullable<Int64>, Boolean)	CreateSequenceOperation建置 以建立新的序列。

CreateSequence(String, String, Int64, Int32, Nullable<Int64>, Nullable<Int64>, Boolean)

來源:

MigrationBuilder.cs

CreateSequenceOperation建置 以建立新的序列。

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.CreateSequenceOperation> CreateSequence (string name, string? schema = default, long startValue = 1, int incrementBy = 1, long? minValue = default, long? maxValue = default, bool cyclic = false);

abstract member CreateSequence : string * string * int64 * int * Nullable<int64> * Nullable<int64> * bool -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.CreateSequenceOperation>
override this.CreateSequence : string * string * int64 * int * Nullable<int64> * Nullable<int64> * bool -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.CreateSequenceOperation>

Public Overridable Function CreateSequence (name As String, Optional schema As String = Nothing, Optional startValue As Long = 1, Optional incrementBy As Integer = 1, Optional minValue As Nullable(Of Long) = Nothing, Optional maxValue As Nullable(Of Long) = Nothing, Optional cyclic As Boolean = false) As OperationBuilder(Of CreateSequenceOperation)

參數

name

String

序列名稱。

schema

String

包含序列的架構，或使用 null 預設架構。

startValue

Int64

序列開始的值，預設為 1。

incrementBy

Int32

在序列中產生下一個值時要遞增的數量，預設值為 1。

minValue

Nullable<Int64>

序列的最小值，如果未指定則 null 為 。

maxValue

Nullable<Int64>

序列的最大值，如果未指定則 null 為 。

cyclic

Boolean

指出當達到最大值時，序列是否會重新開機。

傳回

OperationBuilder<CreateSequenceOperation>

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 。

CreateSequence<T>(String, String, Int64, Int32, Nullable<Int64>, Nullable<Int64>, Boolean)

來源:

MigrationBuilder.cs

CreateSequenceOperation建置 以建立新的序列。

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.CreateSequenceOperation> CreateSequence<T> (string name, string? schema = default, long startValue = 1, int incrementBy = 1, long? minValue = default, long? maxValue = default, bool cyclic = false);

abstract member CreateSequence : string * string * int64 * int * Nullable<int64> * Nullable<int64> * bool -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.CreateSequenceOperation>
override this.CreateSequence : string * string * int64 * int * Nullable<int64> * Nullable<int64> * bool -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.CreateSequenceOperation>

Public Overridable Function CreateSequence(Of T) (name As String, Optional schema As String = Nothing, Optional startValue As Long = 1, Optional incrementBy As Integer = 1, Optional minValue As Nullable(Of Long) = Nothing, Optional maxValue As Nullable(Of Long) = Nothing, Optional cyclic As Boolean = false) As OperationBuilder(Of CreateSequenceOperation)

類型參數

T

序列所產生值的 CLR 型別。

參數

name

String

序列名稱。

schema

String

包含序列的架構，或使用 null 預設架構。

startValue

Int64

序列開始的值，預設為 1。

incrementBy

Int32

在序列中產生下一個值時要遞增的數量，預設值為 1。

minValue

Nullable<Int64>

序列的最小值，如果未指定則 null 為 。

maxValue

Nullable<Int64>

序列的最大值，如果未指定則 null 為 。

cyclic

Boolean

指出當達到最大值時，序列是否會重新開機。

傳回

OperationBuilder<CreateSequenceOperation>

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 。