MySQL-基于多个表上的SELECT查询编写更新查询

我在MySQL或数据库方面远远不够强大，所以我使用的是一种叫做FlySpeed SQL Query的工具。这个工具帮助我以图形方式创建MySQL查询。 这是我用这个工具创建的查询，我在互联网上读了很多书

Select
  Employee.Firstname As Prénom,
  Employee.Name As NOM,
  TimeSheet.Filled As Validé,
  TimeSheet.Closed As Clôturé,
  Sum(Imputation.Hours) As `Somme des heures`,
  TimeSheet.Month + 1 As Mois,
  TimeSheet.Year As Année
From
  Employee Inner Join
  TimeSheet On TimeSheet.Employee_Id = Employee.Id Inner Join
  Imputation On Imputation.TimeSheet_Id = TimeSheet.Id Inner Join
  Project On Imputation.Project_Id = Project.Id
Where
  TimeSheet.Filled = '1' And
  (TimeSheet.Closed = '0' Or
    TimeSheet.Closed Is Null) And
  Imputation.Day <= Last_Day(Current_Date - Interval 1 Month) And Imputation.Day >= Date_Format(Current_Date - Interval 1 Month, '%Y-%m-01') And
  Project.Id != '1'
Group By
  Employee.Name, TimeSheet.Month + 1, TimeSheet.Year
Having
  Sum(Imputation.Hours) >= 5 * ((DateDiff(Last_Day(Current_Date - Interval 1 Month), Date_Format(Current_Date - Interval 1 Month, '%Y-%m-01')) + 1))
Order By
  Année,
  Mois,
  NOM

此查询返回的结果正好是所需的结果。保持与上面MySQL查询相同的条件，我想将封闭字段更新为1。我想做一些有味道的东西：

-- UPDATE Query
--
UPDATE TimeSheet
SET Closed = '1'
--
-- UPDATE Query
From
Employee Inner Join
TimeSheet On TimeSheet.Employee_Id = Employee.Id Inner Join
Imputation On Imputation.TimeSheet_Id = TimeSheet.Id Inner Join
Project On Imputation.Project_Id = Project.Id
--
-- With those conditions
--
Where
TimeSheet.Filled = '1' And
(TimeSheet.Closed = '0' Or
    TimeSheet.Closed Is Null) And
-- Calculating a time range
Imputation.Day <= Last_Day(Current_Date - Interval 1 Month) And Imputation.Day >= Date_Format(Current_Date - Interval 1 Month, '%Y-%m-01') 
And
Project.Id != '1'
Group By
Employee.Name, TimeSheet.Month + 1, TimeSheet.Year
Having
-- Calculation : >= 5 times the number of days in the period
Sum(Imputation.Hours) >= 5 * ((DateDiff(Last_Day(Current_Date - Interval 1 Month), Date_Format(Current_Date - Interval 1 Month, '%Y-%m-01')) + 1))
---
-- With those conditions

因此，我需要帮助将SELECT查询转换为UPDATE查询。请随时向我询问更多信息。

尝试在联接后移动集合操作：

---

我终于找到了解决我问题的办法

这篇文章对我帮助很大：

这是：

UPDATE TimeSheet 
SET 
    Closed = '1'
WHERE
    TimeSheet.Id IN (SELECT 
            TimeSheet.Id
        FROM
            (SELECT 
                TimeSheet.Id
            FROM
                TimeSheet
            Where
                TimeSheet.Id IN (SELECT 
                        TimeSheet.Id
                    FROM
                        Imputation
                    INNER JOIN TimeSheet ON Imputation.TimeSheet_Id = TimeSheet.Id
                    INNER JOIN Project ON Imputation.Project_Id = Project.Id
                    INNER JOIN Employee ON TimeSheet.Employee_Id = Employee.Id
                    Where
                        (TimeSheet.Closed = '0'
                            OR TimeSheet.Closed IS NULL)
                            AND TimeSheet.Filled = '1'
                            AND Imputation.Day <= Last_Day(Current_Date - INterval 1 Month)
                            AND Imputation.Day >= Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')
                    GROUP BY TimeSheet.Id
                    HAVING TimeSheet.Id NOT IN (SELECT DISTINCT
                            TimeSheet.Id
                        FROM
                            TimeSheet
                        INNER JOIN Imputation ON Imputation.TimeSheet_Id = TimeSheet.Id
                        INNER JOIN Project ON Imputation.Project_Id = Project.Id
                        INNER JOIN Employee ON TimeSheet.Employee_Id = Employee.Id
                        Where
                            Imputation.Day <= Last_Day(Current_Date - INterval 1 Month)
                                AND Imputation.Day >= Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')
                                AND Project.Id = '1')
                        AND Sum(Imputation.Hours) >= 5 * (DateDiff(Last_Day(Current_Date - INterval 1 Month), Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')) + 1))) VirtualTable01);

然而，术语解决方案可能有点强。我更愿意说，这是一个解决办法。所以我不确定这个请求是否得到了很好的优化，是否符合标准，但至少它有优势，可以给我期望的结果

与上述查询相同，但已注释：

-- UPDATE Query
--
UPDATE TimeSheet 
SET 
    Closed = '1'
--
-- UPDATE Query
--
-- With those conditions
--
WHERE
    -- First Select
    --
    TimeSheet.Id IN (SELECT 
            TimeSheet.Id
        FROM
            -- Second Select
            --
            (SELECT 
                TimeSheet.Id
            FROM
                TimeSheet
            Where
                -- Third Select
                --
                TimeSheet.Id IN (SELECT 
                        TimeSheet.Id
                    FROM
                        Imputation
                    INNER JOIN TimeSheet ON Imputation.TimeSheet_Id = TimeSheet.Id
                    INNER JOIN Project ON Imputation.Project_Id = Project.Id
                    INNER JOIN Employee ON TimeSheet.Employee_Id = Employee.Id
                    Where
                        (TimeSheet.Closed = '0'
                            OR TimeSheet.Closed IS NULL)
                            AND TimeSheet.Filled = '1'
                            AND Imputation.Day <= Last_Day(Current_Date - INterval 1 Month)
                            AND Imputation.Day >= Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')
                    GROUP BY TimeSheet.Id
                    -- Fourth Select
                    --
                    HAVING TimeSheet.Id NOT IN (SELECT DISTINCT
                            TimeSheet.Id
                        FROM
                            TimeSheet
                        INNER JOIN Imputation ON Imputation.TimeSheet_Id = TimeSheet.Id
                        INNER JOIN Project ON Imputation.Project_Id = Project.Id
                        INNER JOIN Employee ON TimeSheet.Employee_Id = Employee.Id
                        Where
                            Imputation.Day <= Last_Day(Current_Date - INterval 1 Month)
                                AND Imputation.Day >= Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')
                                AND Project.Id = '1')
                    --
                    -- End Fourth Select
                        AND Sum(Imputation.Hours) >= 5 * (DateDiff(Last_Day(Current_Date - INterval 1 Month), Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')) + 1))
                -- 
                -- End Third Select
                            ) VirtualTable01)
            -- 
            -- End Second Select
    -- 
    -- End First Select
;

---

它不起作用了？假设您要更新返回的每个记录，乍一看似乎是可以的。当我按我的想法尝试查询时：错误1064 42000：您的SQL语法有错误；检查与您的MySQL服务器版本对应的手册，以了解要使用的正确语法：第3行的“从员工内部加入时间表。员工\u Id=Employee.Id Inner”在使用之前，我已取消此处发布的查询的注释。当我尝试您的查询@sgedes:ERROR 1064 42000:您的SQL语法有错误；查看与您的MySQL服务器版本对应的手册，以了解在第13行“Group By Employee.Name，TimeSheet.Month+1，TimeSheet.Year have SumI”附近使用的正确语法，因此，您的建议@sgedes似乎比我的建议更具吸引力。查询仅在第13行Group By处阻塞。在使用之前，我已经取消了此处发布的查询的注释。

-- UPDATE Query
--
UPDATE TimeSheet 
SET 
    Closed = '1'
--
-- UPDATE Query
--
-- With those conditions
--
WHERE
    -- First Select
    --
    TimeSheet.Id IN (SELECT 
            TimeSheet.Id
        FROM
            -- Second Select
            --
            (SELECT 
                TimeSheet.Id
            FROM
                TimeSheet
            Where
                -- Third Select
                --
                TimeSheet.Id IN (SELECT 
                        TimeSheet.Id
                    FROM
                        Imputation
                    INNER JOIN TimeSheet ON Imputation.TimeSheet_Id = TimeSheet.Id
                    INNER JOIN Project ON Imputation.Project_Id = Project.Id
                    INNER JOIN Employee ON TimeSheet.Employee_Id = Employee.Id
                    Where
                        (TimeSheet.Closed = '0'
                            OR TimeSheet.Closed IS NULL)
                            AND TimeSheet.Filled = '1'
                            AND Imputation.Day <= Last_Day(Current_Date - INterval 1 Month)
                            AND Imputation.Day >= Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')
                    GROUP BY TimeSheet.Id
                    -- Fourth Select
                    --
                    HAVING TimeSheet.Id NOT IN (SELECT DISTINCT
                            TimeSheet.Id
                        FROM
                            TimeSheet
                        INNER JOIN Imputation ON Imputation.TimeSheet_Id = TimeSheet.Id
                        INNER JOIN Project ON Imputation.Project_Id = Project.Id
                        INNER JOIN Employee ON TimeSheet.Employee_Id = Employee.Id
                        Where
                            Imputation.Day <= Last_Day(Current_Date - INterval 1 Month)
                                AND Imputation.Day >= Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')
                                AND Project.Id = '1')
                    --
                    -- End Fourth Select
                        AND Sum(Imputation.Hours) >= 5 * (DateDiff(Last_Day(Current_Date - INterval 1 Month), Date_Format(Current_Date - INterval 1 Month, '%Y-%m-01')) + 1))
                -- 
                -- End Third Select
                            ) VirtualTable01)
            -- 
            -- End Second Select
    -- 
    -- End First Select
;