Q: How to ROUNDUP a number in Access 2013?

问题

For Access 2013, I need a way to round up any fractional numbers to the next whole number in an SQL query.

Example:

SELECT ROUNDUP(NumberValues) FROM Table1

In the above query, a row with 1.25 should return as 2 after querying.

As far as I know, there's no ROUNDUP function in Access 2013 for use in a SQL query statement.

回答1:

I found a ROUNDUP equivalent from this link: http://allenbrowne.com/round.html#RoundUp

To round upwards towards the next highest number, take advantage of the way Int() rounds negative numbers downwards, like this: - Int( - [MyField])

As shown above, Int(-2.1) rounds down to -3. Therefore this expression rounds 2.1 up to 3.

To round up to the higher cent, multiply by -100, round, and divide by -100: Int(-100 * [MyField]) / -100

The syntax is counter-intuitive, but it works exactly as I intended.

回答2:

I have found the easiest way to round up a number in access is to use the round function like this:

Round([MyField]+0.4,0)

The number 10.1, for example then becomes 10.5. When the round function is applied, it rounds up to 11. If the number is 10.9, adding 0.4 becomes 11.3, which rounds to 11.

回答3:

Excellent answer 'alextansc'. This little public function works a treat:

Public Function GlblRoundup(wNumber As Currency, wDecPlaces As Integer)  As Currency

Dim wResult As Currency
Dim wFactor As Currency

    Select Case wDecPlaces
        Case 0
            wFactor = -1
        Case 1
            wFactor = -10
        Case 2
            wFactor = -100
        Case 3
            wFactor = -1000
        Case 4
            wFactor = -10000
        Case Else
            wFactor = -10000
    End Select

    wResult = Int(wFactor * wNumber) / wFactor

    GlblRoundup = Round(wResult, wDecPlaces)

End Function

回答4:

this works great as well

Public Function roundUp(dValue As Double, idecimal As Integer) As Double
    Dim iSign As Integer
    If dValue < 0 Then
       iSign = -1
    Else
       iSign = 1
    End If
    dValue = Abs(dValue)

    If Round(dValue, 0) = 0 Then
        roundUp = 1 / 10 ^ idecimal * iSign
    Else
      roundUp = Round(dValue + 4 / 10 ^ (idecimal + 1), idecimal) * iSign

    End If

End Function

Example roundup(10.333,2)=10.34

回答5:

Here is one that is simple and easy to understand:

Public Function roundUp(ByVal theValue As Long) As Integer
    Dim tempInt As Integer
    tempInt = theValue 'cast value to whole integer
    If (tempInt = theValue) Then 'check if original value was already whole
        'do nothing
    Else
        tempInt = tempInt + 1 'value was not whole integer, add one to round up
    End If
    roundUp = tempInt 'return rounded value
End Function

NOTE: Do not forget to check your value(s) for null before calling the function! This function will roundup the smallest to the largest decimal point to the next whole integer regardless!

来源：https://stackoverflow.com/questions/31980106/q-how-to-roundup-a-number-in-access-2013

标签

sql

rounding

ms-access-2013