MySQL-ALIAS的总和未按预期工作

Posted 2021-05-03

[我是SQL的新手，我试图找到一种方法来添加2个简单列:(，一个累加(col1+col2+col3+col4)，另一个累加(col5+col6+col7+col8)。

问题是，我已经尝试过：(col1+col2+col3+col4) as total，(sum(col1)+sum(col2)+sum(col3)+sum(col4)) as total。

但是所有行的输出均为“ 0”，它们没有对值求和。

任何提示？

感谢进阶！

下面是我的查询：

SELECT CONCAT(extract(day from datetime_req),"_",extract(month from datetime_req),"_",
            extract(year from datetime_req),"_",`card_acceptor_id_code`,"_",`terminal_id`,"_",`ext_nserie_simcard`,"_",`ext_connection_type`) AS 'col0',
    COUNT(CASE WHEN `rsp_code_rsp` = '00' AND `tran_reversed` = '0'  THEN 'APROVADA EFETIVADA' END)  AS 'Col1',
    COUNT(CASE WHEN `rsp_code_rsp` != '00' AND `tran_reversed` = '0'  THEN 'NEGADA EFETIVADA'  END)  AS 'Col2',
    COUNT(CASE WHEN `rsp_code_rsp` = '00' AND `tran_reversed` != '0'  THEN 'APROVADA DESFEITA' END)  AS 'Col3',
    COUNT(CASE WHEN `rsp_code_rsp` != '00' AND `tran_reversed` != '0'  THEN 'NEGADA DESFEITA'  END)  AS 'Col4',
    SUM(CASE WHEN `rsp_code_rsp` = '00' AND `tran_reversed` = '0'  THEN `tran_amount_req` ELSE 0 END)/100 AS 'col5',
    SUM(CASE WHEN  `rsp_code_rsp` != '00' AND `tran_reversed` = '0'  THEN `tran_amount_req` ELSE 0 END)/100 AS 'col6',
    SUM(CASE WHEN `rsp_code_rsp` = '00' AND `tran_reversed` != '0'  THEN `tran_amount_req` ELSE 0 END)/100 AS 'Col7',
    SUM(CASE WHEN  `rsp_code_rsp` != '00' AND `tran_reversed` != '0'  THEN `tran_amount_req` ELSE 0 END)/100 AS 'Col8'
FROM `table`  
WHERE `datetime_req` BETWEEN '2019-10-29 00:00:00' AND '2019-10-29 23:59:59' 
GROUP BY 1

答案

您不能在同一SELECT列表中引用别名，也不能嵌套聚合功能。您需要将查询放入子查询中。

SELECT col0, SUM(col1+col2+col3+col4) AS total1, SUM(col5, col6, col7, col8) AS total2
FROM (
    SELECT CONCAT(extract(day from datetime_req),"_",extract(month from datetime_req),"_",
                extract(year from datetime_req),"_",`card_acceptor_id_code`,"_",`terminal_id`,"_",`ext_nserie_simcard`,"_",`ext_connection_type`) AS 'col0',
        COUNT(CASE WHEN `rsp_code_rsp` = '00' AND `tran_reversed` = '0'  THEN 'APROVADA EFETIVADA' END)  AS 'Col1',
        COUNT(CASE WHEN `rsp_code_rsp` != '00' AND `tran_reversed` = '0'  THEN 'NEGADA EFETIVADA'  END)  AS 'Col2',
        COUNT(CASE WHEN `rsp_code_rsp` = '00' AND `tran_reversed` != '0'  THEN 'APROVADA DESFEITA' END)  AS 'Col3',
        COUNT(CASE WHEN `rsp_code_rsp` != '00' AND `tran_reversed` != '0'  THEN 'NEGADA DESFEITA'  END)  AS 'Col4',
        SUM(CASE WHEN `rsp_code_rsp` = '00' AND `tran_reversed` = '0'  THEN `tran_amount_req` ELSE 0 END)/100 AS 'col5',
        SUM(CASE WHEN  `rsp_code_rsp` != '00' AND `tran_reversed` = '0'  THEN `tran_amount_req` ELSE 0 END)/100 AS 'col6',
        SUM(CASE WHEN `rsp_code_rsp` = '00' AND `tran_reversed` != '0'  THEN `tran_amount_req` ELSE 0 END)/100 AS 'Col7',
        SUM(CASE WHEN  `rsp_code_rsp` != '00' AND `tran_reversed` != '0'  THEN `tran_amount_req` ELSE 0 END)/100 AS 'Col8'
    FROM `table`  
    WHERE `datetime_req` BETWEEN '2019-10-29 00:00:00' AND '2019-10-29 23:59:59' 
    GROUP BY col0
) AS x
GROUP BY col0