Question

我有一张包含以下定义的表格。

Create table RecipientInGroups
{
  ID uniqueidentifier,
  GroupID uniqueidentifier,
  RID uniqueidentifier,
  CreateDt datetime
}

我正在尝试运行以下代码：

var strCommandText = dc.GetCommand(finalRecp).CommandText;

strCommandText = String.Format("INSERT INTO RecipientInGroups SELECT '{0}', '{1}', '{2}', '{3}'", Guid.NewGuid(), gGroupId, finalRecp, now);

dc.ExecuteQuery<EmailRecipientInGroup>(strCommandText);

其中finalRecp是基于特定条件创建的可查询对象。

但是我收到了finalRecp的错误：

错误2015-02-08 00：04：39,070 - [CopyContcatsToGroup] - System.Data.SqlClient.SqlException（0x80131904）：转换失败从字符串转换为uniqueidentifier时。 at System.Data.SqlClient.SqlConnection.OnError（SqlException异常，布尔值breakConnection，Action 1 wrapCloseInAction) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action 1 wrapCloseInAction）at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning（TdsParserStateObject stateObj，Boolean callerHasConnectionLock，Boolean asyncClose）at System.Data.SqlClient.TdsParser.TryRun（RunBehavior runBehavior， SqlCommand cmdHandler，SqlDataReader dataStream， BulkCopySimpleResultSet bulkCopyHandler，TdsParserStateObject stateObj，布尔＆amp; dataReady）at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds（字符串 methodName，Boolean async，Int32 timeout，Boolean asyncWrite）at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery（TaskCompletionSource`1 completion，String methodName，Boolean sendToPipe，Int32 timeout，布尔asyncWrite）at System.Data.SqlClient.SqlCommand.ExecuteNonQuery（）at System.Data.Linq.SqlClient.SqlProvider.Execute（表达式查询， QueryInfo queryInfo，IObjectReaderFactory factory，Object [] parentArgs，Object [] userArgs，ICompiledSubQuery [] subQueries，Object lastResult）at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll（表达式查询， QueryInfo [] queryInfos，IObjectReaderFactory factory，Object [] userArguments，ICompiledSubQuery [] subQueries）at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute（表达式查询）在System.Data.Linq.DataContext.ExecuteMethodCall（Object 实例，MethodInfo methodInfo，Object []参数）at System.Data.Linq.DataContext.ExecuteCommand（String command，Object [] 参数）

如何使用finalRecp（IQueryable）对象在ExecuteQuery或ExecuteCommand中插入值？我如何为使用ExecuteQuery或ExecuteCommand插入的每个RID创建新的ID？

假设我的问题让很多人感到困惑，那么生成的最终查询如下：

INSERT INTO RecipientInGroups SELECT '404f8892-8a1a-4d65-abc1-174c41ce89f7', '662f4f05-0d9f-4036-b048-74178413f033', 'SELECT DISTINCT [t0].[RID]
FROM [dbo].[EmailRecipients] AS [t0]
WHERE EXISTS(
    SELECT NULL AS [EMPTY]
    FROM (
        SELECT DISTINCT [t11].[RID]
        FROM (
            SELECT [t10].[RID]
            FROM (
                SELECT DISTINCT [t4].[RID]
                FROM [dbo].[UserGroupMessageEmailDetail] AS [t1]
                INNER JOIN [dbo].[UserGroupMessages] AS [t2] ON [t2].[ID] = [t1].[GroupMessageID]
                INNER JOIN [dbo].[aspnet_Users] AS [t3] ON [t3].[UserId] = [t2].[UserId]
                INNER JOIN [dbo].[UserEmailRecipients] AS [t4] ON [t4].[RID] = [t1].[RID]
                WHERE ([t1].[GroupMessageID] = @p0) AND ([t3].[LoweredUserName] = LOWER(@p1))
                UNION
                SELECT DISTINCT [t9].[RID]
                FROM [dbo].[UserGroupMessageContactDetails] AS [t5]
                INNER JOIN [dbo].[UserGroupMessages] AS [t6] ON [t6].[ID] = [t5].[GroupMessageID]
                INNER JOIN [dbo].[aspnet_Users] AS [t7] ON [t7].[UserId] = [t6].[UserId]
                INNER JOIN [dbo].[UserContacts] AS [t8] ON [t8].[ContactID] = [t5].[ContactID]
                INNER JOIN [dbo].[UserEmailRecipients] AS [t9] ON [t9].[RID] = [t8].[ContactID]
                WHERE ([t7].[LoweredUserName] = @p2) AND ([t5].[GroupMessageID] = @p3) AND (NOT ([t9].[IsDeleted] = 1))
                ) AS [t10]
            ) AS [t11]
        ) AS [t12]
    WHERE [t12].[RID] = [t0].[RID]
    )
', '02-09-2015 06:14:15 AM'

我认为问题出现在第三个参数插入中。

如果需要更多信息，请告诉我......

如何在ExceuteCommand ExecuteQuery中使用Iqueryable对象

0 个答案: