Question

任何人都可以建议我查询错误。

SELECT SUM(cCallDuration), COUNT(*), AVG(cCallduration), 
       cBeginTime, cEndTime, cAnswerTime, cCallDuration, cDispatcherName, cConsoleName,
       cEndpointName, cProfileName, cCallDirection, cCallType,
       cCallNature, cCallData, cDirectedCall
FROM  CALLINFO 
WHERE cBeginTime >='7/11/2011 12:00:00 AM' 
     AND cEndTime <='7/11/2011 12:00:00 AM' 
     AND cCallType='InBound' 
GROUP BY cConsoleName

我收到了这个错误：

在聚合和分组表达式中，SELECT子句可以仅包含聚合和分组表达式。 [选择条款= ，cBeginTime]

Answer 1

您必须在GROUP BY子句中有更多内容

查看此示例。每个非聚合列都包含在GROUP BY中。你也必须这样做

SELECT Customer,OrderDate,SUM(OrderPrice) FROM Orders
GROUP BY Customer,OrderDate

试试这个：

SELECT SUM(cCallDuration), COUNT(*), AVG(cCallduration), 
       cDispatcherName, cConsoleName,              
FROM  CALLINFO 
WHERE cBeginTime >='7/11/2011 12:00:00 AM' 
     AND cEndTime <='7/11/2011 12:00:00 AM' 
     AND cCallType='InBound' GROUP BY cConsoleName,cDispatcherName

所以要完成你的完整sql语法，你必须在GROUP BY子句中包含不是聚合的每一列，这意味着除SUM，AVG和COUNT之外的每一列

Answer 2

GROUP BY子句： SELECT 列表中任何nonaggregate表达式中的列必须包含在GROUP BY列表中。

SELECT SUM(cCallDuration), COUNT(*), AVG(cCallduration), 
       cBeginTime, cEndTime, cAnswerTime, cCallDuration, cDispatcherName, cConsoleName,
       cEndpointName, cProfileName, cCallDirection, cCallType,
       cCallNature, cCallData, cDirectedCall
FROM  CALLINFO 
WHERE cBeginTime >='7/11/2011 12:00:00 AM' 
     AND cEndTime <='7/11/2011 12:00:00 AM' 
     AND cCallType='InBound' GROUP BY 
        cBeginTime, cEndTime, cAnswerTime, cCallDuration, cDispatcherName, cConsoleName,
       cEndpointName, cProfileName, cCallDirection, cCallType,
       cCallNature, cCallData, cDirectedCall

SQL查询语法问题。（system.data.sqlserverce）

2 个答案: