UpdateSqlGenerator.AppendSelectAffectedCommand 方法
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
重载
AppendSelectAffectedCommand(StringBuilder, String, String, IReadOnlyList<ColumnModification>, IReadOnlyList<ColumnModification>, Int32)
追加用于选择受影响数据的 SQL 命令。
protected virtual Microsoft.EntityFrameworkCore.Update.ResultSetMapping AppendSelectAffectedCommand (System.Text.StringBuilder commandStringBuilder, string name, string schema, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.ColumnModification> readOperations, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.ColumnModification> conditionOperations, int commandPosition);
abstract member AppendSelectAffectedCommand : System.Text.StringBuilder * string * string * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.ColumnModification> * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.ColumnModification> * int -> Microsoft.EntityFrameworkCore.Update.ResultSetMapping
override this.AppendSelectAffectedCommand : System.Text.StringBuilder * string * string * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.ColumnModification> * System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Update.ColumnModification> * int -> Microsoft.EntityFrameworkCore.Update.ResultSetMapping
Protected Overridable Function AppendSelectAffectedCommand (commandStringBuilder As StringBuilder, name As String, schema As String, readOperations As IReadOnlyList(Of ColumnModification), conditionOperations As IReadOnlyList(Of ColumnModification), commandPosition As Integer) As ResultSetMapping
参数
- commandStringBuilder
- StringBuilder
SQL 应追加到的生成器。
- name
- String
表的名称。
- schema
- String
表架构,或使用 null
默认架构。
- readOperations
- IReadOnlyList<ColumnModification>
表示要读取的数据的操作。
- conditionOperations
- IReadOnlyList<ColumnModification>
用于为 select 生成 WHERE
子句的操作。
- commandPosition
- Int32
命令的序号,该命令的行影响其返回。
返回
ResultSetMapping此命令的 。
适用于
AppendSelectAffectedCommand(StringBuilder, String, String, IReadOnlyList<IColumnModification>, IReadOnlyList<IColumnModification>, Int32)
追加用于选择受影响数据的 SQL 命令。
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
SQL 应追加到的生成器。
- 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
命令的序号,该命令的行影响其返回。
返回
ResultSetMapping此命令的 。