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Loop months of the year in this code

Posted on 2012-12-28
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Last Modified: 2013-01-02
I am trying to loop 3 months of the year into the code below.  How do I write this type of loop statement.  I am drawing a blank for some reason...


'How turn this into a loop where Var1 is a loop of January, February, March so that I get the total for all 3 months

select count(*) from table where Month = Var1
rec2.CursorLocation = adUseClient
rec2.Open (esql), conn, adOpenStatic, adLockOptimistic

Total = Total + rec.Fields(0)

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Question by:al4629740
7 Comments
 
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Expert Comment

by:aikimark
ID: 38728665
Does your table have a column named "month"?  If this is a new table, I should advise you to have column names that are different than database function names.

What type of column is "month" (numeric or text)?

Normally, I would create a Select statement that summed/counted the data for a date range, rather than executing three different Select statements.
Example:
select count(*) from table where Month Between 1 and 3

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Author Comment

by:al4629740
ID: 38728671
Month column is text.

What I need was a loop to go through specified months as mentioned in the question.  

Thanks
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Assisted Solution

by:GrahamSkan
GrahamSkan earned 250 total points
ID: 38728860
This would answer one interpretation of your question:
Sub LoopSub(conn As Connection)
    Dim Var1 As String
    Dim m As Integer
    Dim eSQL As String
    Dim rec2 As New ADODB.Recordset
    Dim Total As Double
    
    For m = 1 To 3
        Var1 = Format(DateSerial(2000, m, 1), "MMMM")
        eSQL = "select count(*) from table where Month = " ' & Var1 & '"
        rec2.CursorLocation = adUseClient
        rec2.Open eSQL, conn, adOpenStatic, adLockOptimistic
        Total = Total + rec2.Fields(0)
        rec2.Close
    Next m
End Sub

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Accepted Solution

by:
Faustulus earned 250 total points
ID: 38730260
This code would convert what you already have into a loop that runs 3 times:
    Const AllMonths As String = "January February March"
    Dim i As Integer
    
    For i = 0 To 2
        select count(*) from table where Month = Split(AllMonths)(i)
        rec2.CursorLocation = adUseClient
        rec2.Open (esql), conn, adOpenStatic, adLockOptimistic

        Total = Total + rec.Fields(0)
    Next i

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Expert Comment

by:shorvath
ID: 38730375
select count(*)
from table
where Month = 'January'
or  Month = 'February'
or Month = ' March'
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LVL 9

Expert Comment

by:shorvath
ID: 38730376
No loop required, just the query
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Author Closing Comment

by:al4629740
ID: 38738517
Thanks for the effort
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