PYODBC - 太少参数

我有以下代码：PYODBC - 太少参数

Late_Students = cursor.execute(''' 
    SELECT Student.Forename, Student.Surname, FORMAT(Event_Date_Time,"Long Time") AS Time_Of_Event 
    FROM Events, Student 
    WHERE FORMAT(Event_Date_Time,"Short Date") = Date() 
    AND Events.RFID = Student.RFID AND 
    Events.In_Or_Out = ? 
    AND FORMAT(Event_Date_Time,"Long Time")>#08:40:00#''','In') 

rows = cursor.fetchall() 
print(rows)

这是一个非常简单的，我有很多我的程序喜欢它，但是当我运行该程序，我得到以下错误：

Traceback (most recent call last): 
    File "...Coursework System 1.8.py", line 104, in <module> 
    AND FORMAT(Event_Date_Time,"Long Time")>#08:40:00#''','In') 
pyodbc.Error: ('07002', '[07002] [Microsoft][ODBC Microsoft Access Driver] 
         Too few parameters. Expected 3. (-3010) (SQLExecDirectW)')

当我添加参数，我碰到下面的错误告诉我，我有太多的参数：

Traceback (most recent call last): 
    File "...\Coursework System 1.8.py", line 104, in <module> 
    AND FORMAT(Event_Date_Time,"Long Time")>#08:40:00#''','In','','') 
pyodbc.ProgrammingError: ('The SQL contains 1 parameter markers, but 3 
          parameters were supplied', 'HY000')

我是什么做错了？

来源

2015-04-14 Michael

可能的重复[在Access中使用pyodbc给出“参数太少”错误]中的日期（http://stackoverflow.com/questions/28568110/working-with-dates-in-access-using- pyodbc-giving-too-few-parameters-error） –

@PeterWood我试过在那里发布的解决方案，但无济于事。由于某种原因，它仍然无法正常工作。 – Michael

你会得到什么错误？ –

Long_Time = 'Long Time' 
Short_Date = 'Short Date' 
Todays_Date = time.strftime('%d/%m/%Y') 
Reg_Time = str('#08:40:00#') 
In = 'In' 

Late_Students = ''' 
       SELECT Student.Forename, Student.Surname, FORMAT(Event_Date_Time,?) AS Time_Of_Event 
       FROM Events, Student 
       WHERE FORMAT(Event_Date_Time,?) =? 
       AND Events.RFID = Student.RFID AND 
       Events.In_Or_Out =? 
       AND FORMAT(Event_Date_Time,?)>?''' 

parameters = (Long_Time, Short_Date,Todays_Date, In, Long_Time, Reg_Time) 
cursor.execute(Late_Students, parameters)

来源

2015-04-14 21:29:09 Michael

PYODBC - 太少参数

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