Mysql的运行总​​计关闭一个表

Question

我已经看过了几个不同的答案，这个问题似乎并不能得到查询才能正常工作。

这里是我的表有列用户，weekNo，salesTotalYTD。

我目前由周拉动这些出来，将它们分组，像这样：

+------+--------+---------------+ 
| user | weekNo | salesTotalYTD | 
+------+--------+---------------+ 
|Jared | 1 |  200  | 
+------+--------+---------------+ 
| Jim | 1 |  50  | 
+------+--------+---------------+ 
|Jared | 2 |  30  | 
+------+--------+---------------+ 
| Jim | 2 |  100  | 
+------+--------+---------------+ 

我所试图做的，但不能完成如下：

+------+--------+---------------+ 
| user | weekNo | salesTotalYTD | 
+------+--------+---------------+ 
|Jared | 1 |  200  | 
+------+--------+---------------+ 
| Jim | 1 |  50  | 
+------+--------+---------------+ 
|Jared | 2 |  230  | 
+------+--------+---------------+ 
| Jim | 2 |  150  | 
+------+--------+---------------+ 

这是查询我已经工作了第一遍但之后每次传球是错误的：

SET @runtot:=0 

SELECT 
    salesTotalYTD, 
    user, 
    (@runtot := @runtot + salesTotalYTD) AS rt 
    FROM weeksAndSalesmantbl 
    GROUP BY user, weekNo 
    ORDER BY (CASE WHEN weekNo = 52 THEN 0 ELSE 1 END) ASC, weekNo, user ASC 

更新

添但返回错误的更新代码礼貌：

$assignments = " 
    SELECT 
    t1.user, 
    t1.weekNo, 
    (SELECT SUM(t2.salesTotalYTD) FROM weeksAndSalesmantbl t2 
    WHERE t2.user = t1.user AND t2.weekNo <= t1.weekNo) AS salesTotalYTD 
    FROM weeksAndSalesmantbl t1 
    ORDER BY 
    t1.weekNo, 
    t1.user"; 

    $salesTotalSalesManCumulative = []; 

    $assignmentsqry = mysqli_query($db,$assignments); 

    if (!$assignmentsqry) { 
    printf("Error: %s\n", mysqli_error($db)); 
    exit(); 
    } 

    while ($row = mysqli_fetch_array($assignmentsqry)) { 

    $float = floatval($row['salesTotalYTD']); 
    $float = round($float,2); 

    array_push($salesTotalSalesManCumulative,$float); 

    } 

Answer 1

为此，可以使用标准的运行总计查询方法。但是，在这种情况下，我们也会将总和限制在特定的用户。

SELECT 
    t1.user, 
    t1.weekNo, 
    (SELECT SUM(t2.salesTotalYTD) FROM weeksAndSalesmantbl t2 
    WHERE t2.user = t1.user AND t2.weekNo <= t1.weekNo) AS salesTotalYTD 
FROM weeksAndSalesmantbl t1 
ORDER BY 
    t1.weekNo, 
    t1.user 

输出：

演示在这里：

Rextester

更新：

自从你告诉我们，weeksAndSalesmantbl是一个临时表，和MySQL不喜欢我上面给查询游戏后期，可以考虑使用单传过来的表会话变量。

SET @rt = NULL; 
SET @user = NULL; 

SELECT 
    t.user, 
    t.weekNo, 
    t.rt AS salesTotalYTD 
FROM 
(
    SELECT 
     @rt:=CASE WHEN @user=user THEN @rt+salesTotalYTD ELSE salesTotalYTD END AS rt, 
     @user:=user AS user, 
     weekNo 
    FROM weeksAndSalesmantbl 
    ORDER BY 
     user, 
     weekNo 
) t 
ORDER BY 
    t.weekNo, 
    t.user; 

Demo

如果这仍然给你的错误，那么你可能要考虑摆脱该临时表。无论如何，你可能不想在生产中使用临时表。