UpdateAndSelectSqlGenerator.AppendSelectAffectedCommand 方法

定义

命名空间:

Microsoft.EntityFrameworkCore.Update

程序集:

Microsoft.EntityFrameworkCore.Relational.dll

程序包:

Microsoft.EntityFrameworkCore.Relational v10.0.0

Source:

UpdateAndSelectSqlGenerator.cs

追加 SQL 命令以选择受影响的数据。

protected virtual Microsoft.EntityFrameworkCore.Update.ResultSetMapping AppendSelectAffectedCommand(System.Text.StringBuilder commandStringBuilder, string name, string? schema, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.IColumnModification> readOperations, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.IColumnModification> conditionOperations, int commandPosition);

abstract member AppendSelectAffectedCommand : System.Text.StringBuilder * string * string * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.IColumnModification> * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.IColumnModification> * int -> Microsoft.EntityFrameworkCore.Update.ResultSetMapping
override this.AppendSelectAffectedCommand : System.Text.StringBuilder * string * string * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.IColumnModification> * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.IColumnModification> * int -> Microsoft.EntityFrameworkCore.Update.ResultSetMapping

Protected Overridable Function AppendSelectAffectedCommand (commandStringBuilder As StringBuilder, name As String, schema As String, readOperations As IReadOnlyList(Of IColumnModification), conditionOperations As IReadOnlyList(Of IColumnModification), commandPosition As Integer) As ResultSetMapping

参数

commandStringBuilder

StringBuilder

应向其追加 SQL 的生成器。

name

String

表的名称。

schema

String

表架构，或使用 null 默认架构。

readOperations

IReadOnlyList<IColumnModification>

表示要读取的数据的操作。

conditionOperations

IReadOnlyList<IColumnModification>

用于为 select 生成 WHERE 子句的操作。

commandPosition

Int32

返回其行影响的命令的序号。

返回

ResultSetMapping

此命令 ResultSetMapping 的用处。