Microsoft Access下的SQL查询语句

Question

我有2张桌子：

Employee:
    ID
    SalaryPerDay
    overTimeHoursPrice
    .....
    .....

Schedule:
    ID
    EmployeeID
    Date
    Attending  (boolean)
    loan
    discount
    overTimeHours

与一对多的关系

我想查询返回

[员工姓名]和

[总和（贷款）]和

[总和（折扣）]和

[sum（overTimeHours）]和

[count（attending）]参加人数= true，

[计数（出席）* SalaryPerDay]和

[sum（overTimeHours）* overTimeHoursPrice]和

[（计数（出席）* SalaryPerDay）+（总和（overTimeHours）*超时（Price）--（总和（折扣））-（总和（贷款））]

1-其中Date> = [date1]和Date <= [date2]

2-其中Date> = [date1] And Date <= [date2] And EmployeeName = [name]

（date1和date2和名称是参数）

Answer 1

这样的事情应该可以解决问题。

SELECT 
  emp.EmployeeName, sum_loan, sum_discount, sum_overTimeHours, count_attending, 
  (count_attending*SalaryPerDay) as totalDayPay,
  (sum_overTimeHours*overTimeHoursPrice) as totalOverTimePay,
  ((count_attending*SalaryPerDay) + (sum_overTimeHours*overTimeHoursPrice) -
    sum_discount - sum_loan) as grandTotal
FROM Employee emp
  INNER JOIN (SELECT
      EmployeeID,
      sum(loan) as sum_loan,
      sum(discount) as sum_discount,
      sum(overTimeHours) as sum_overTimeHours,
      sum(iif(Attending,1,0)) as count_attending
    FROM Schedule
    WHERE Date >= {date1} and Date <= {date2}
    GROUP BY EmployeeID
  ) sch
  ON emp.ID = sch.EmployeeID
WHERE emp.EmployeeName = {name}

请注意两个WHERE子句。 您可以根据需要调整这些值，以实现两个不同的参数化限制。

编辑＃1：
由于在Schedule.Attending字段中存储的“布尔值”的实际数值存在一些不确定性，因此我对上面的查询进行了调整，以明确地说明布尔值。 为此，我利用了特定于MSAccess的表达式函数IIF() 。 与仅假设该字段包含1或0相比，这是一个更加可靠的解决方案。

编辑＃2：我还应注意，语法根据您在哪里使用而略有不同。 上面是派生表（即INNER JOIN关键字后括号内的子查询）的“标准sql”语法。 如果通过ODBC连接运行此查询，则以上语法有效。

但是，如果您要尝试在Access本身中创建查询，则需要使用方括号后跟[ ].方括号[ ]. 而不是子查询中的括号( ) 。 所以代替：

SELECT ... FROM Employee emp INNER JOIN (SELECT ... ) sch ON ...

用这个：

SELECT ... FROM Employee emp INNER JOIN [SELECT ... ]. sch ON ...

Answer 2

我想你要：

SELECT e.EmployeeName, 
   Sum(s.loan) AS SumOfloan, 
   Sum(s.discount) AS SumOfdiscount, 
   Sum(s.overTimeHours) AS SumOfoverTimeHours, 
   Sum(Abs([Attending])) AS Attnd, 
   Sum([SalaryPerDay]*Abs([Attending])) AS SalyAttnd, 
   Sum([overTimeHoursPrice]*[overtimehours]) AS OTCost, 
   Sum(([SalaryPerDay]*Abs([Attending])+[overTimeHoursPrice]*[overtimehours])-([loan]-[discount])) AS Due
FROM Employee e
INNER JOIN Schedule s ON e.ID = s.EmployeeID
WHERE s.Date Between [date1] And [Date2]
AND EmployeeName = [Name] 
GROUP BY e.ID, e.EmployeeName

请注意，布尔值为0或-1，因此[SalaryPerDay] * Abs（[Attending] = Salary * 1（如果参加）或0（如果未参加）。