Solved

Sum / Filter on ADO Recordset

Posted on 2006-05-30
5
2,738 Views
Last Modified: 2013-11-23
I have an ADO recordset that I later apply a Filter to. Now, can't I also do a Sum on individual columns in that filtered recordset? How?
0
Comment
Question by:GivenRandy
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 16793640
you have to do that with code.

now, I had worked in my early projects with filtered recordsets, and meanwhile found out that running the (amended) query on the database will be at least as fast as doing filtering etc... the bigger the main recordset, the faster the results by running the query instead of filtering the recordset
0
 
LVL 6

Expert Comment

by:junglerover77
ID: 16795502
With ADO 2.7 or higher versions, you can apply a filter to a Recordset. Here is the sample code:

http://msdn.microsoft.com/library/en-us/ado270/htm/mdprofilterx.asp

After a filter is applied to a recordset, you can just loop through the filtered recordset and do a sum on any columns as you want.

0
 
LVL 15

Expert Comment

by:JackOfPH
ID: 16795594
do a looping. for example.

dim sum

rs.filter = "fldname = `Joseph`"

do until rs.eof
    sum = sum + rs!age
    rs.movenext
loop


the example will add all the age whose name is Joseph.

0
 
LVL 1

Expert Comment

by:dwe0608
ID: 16796284
you can also use an SQL passthrough query (using ADO), which is in essence querying the same table twice with different parameters - if you post the sql query you are using I'll see if I can knock it out for you ...
0
 
LVL 28

Expert Comment

by:Ark
ID: 16796304
You can use SQL statement for both sum and filter:

'Assume you have a table "OrdersTable" with fields
'"Prices", "CustomerID" and "CustomerName"

Dim strSQL As StringDim rst As ADODB.Recordset

strSQL = "SELECT SUM(Prices) As mySum, COUNT(CustomerID) As myCount FROM OrdersTable WHERE CustomerName =`Joseph`"
'mCN is connection name
Set rst = mCN.Execute(strSQL, , adCmdText)
Debug.Print "Sum (for Joseph)  = " & rst("mySum")
Debug.Print "Count (for Joseph) = " & rst("myCount")
rst.Close
Set rst = Nothing
0

Featured Post

MS Dynamics Made Instantly Simpler

Make Your Microsoft Dynamics Investment Count  & Drastically Decrease Training Time by Providing Intuitive Step-By-Step WalkThru Tutorials.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Most everyone who has done any programming in VB6 knows that you can do something in code like Debug.Print MyVar and that when the program runs from the IDE, the value of MyVar will be displayed in the Immediate Window. Less well known is Debug.Asse…
Enums (shorthand for ‘enumerations’) are not often used by programmers but they can be quite valuable when they are.  What are they? An Enum is just a type of variable like a string or an Integer, but in this case one that you create that contains…
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…

751 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question