SUM() 函数在 sqlite 中不起作用

Question

我们有一个 table 是这样的：

Customer  ItemNumber  Item_Name   Qty   FOCQty    
C1          I1           ABC       10     2
C2          I2           BCA       12     2
C3          I1           ABC       3      3 
C4          I2           BCA       05     1

但我们希望它是这样的：

ItemNumber  Item_Name   Qty  FOCQty  
I1            ABC       13     5
I2            BCA       17     3

我们尝试了以下方法：

tx.executeSql('SELECT ItemNumber,Item_Name,sum(Qunatity) as Qunatity1 ,sum(FOCQty) as FOCQty1\
              from   toCSV5\
              Where ItemNumber=?',[this.UpdateItemNumber],SumSuccess,errorCB);

但这对我们不起作用。请告诉我们我们的代码有什么问题。

Answer 1

修正

adjust dynamic sql string to add group by on fields ItemNumber,Item_Name as below

静态查询

SELECT ItemNumber,Item_Name,sum(Qunatity) as Qunatity1 ,sum(FOCQty) as FOCQty1
from   toCSV5
where ItemNumber = 'I1'
group by ItemNumber,Item_Name
;

输出

+------------+-----------+-----------+---------+
| ItemNumber | Item_Name | Qunatity1 | FOCQty1 |
+------------+-----------+-----------+---------+
| I1         | ABC       |        13 |       5 |
+------------+-----------+-----------+---------+

sqlfiddle link

SUM() 函数在 sqlite 中不起作用

SUM() Function not Working in sqLite

sqlite

select

group-by

sum