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05.08.2007 at 10:39AM PDT, ID: 22559714
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8.2

Looking for the most efficient code to execute SQL

Asked by c9k9h in Microsoft Access Database

Tags: , ,

I have the code below for a pass-through query that appends to a table.  It runs very slow and I noticed when I was debugging that it appears to run through the pass-through (or some other) query twice.  I'm not sure about that but wanted to see if any experts could help me write this more efficiently.  Bottom line:  I want to pull records back from our Teradata environment into an access database, then append the records to a table.  

Private Sub cmdUpdateRecords_Click()

Dim db As DAO.Database
Dim qd As QueryDef
Dim strSQL As String

Set db = CurrentDb()

On Error Resume Next
DoCmd.DeleteObject acQuery, "qry_GPC_Data"
On Error GoTo 0

For Each qd In db.QueryDefs
    If qd.Type = 80 Or qd.Type = 112 Then            /*Steppin through this line is where it appears two queries are being processed*/
        qd.Properties("odbcTimeout") = 120
    End If
Next qd

strSQL = "select * FROM SO_MIR_D.GPC_Report_Data "
strSQL = strSQL & "WHERE(REPORTINGDATE Between '" & Format(Me!txtBeginDate, "yyyy/mm/dd") & "' and '" & Format(Me!txtEndDate, "yyyy/mm/dd") & "')"
Set qd = db.CreateQueryDef("qry_GPC_Data")
qd.Connect = "ODBC;DSN=TDDEV;MODE=SHARE;DBALIAS=TDDEV;"
qd.SQL = strSQL
qd.ReturnsRecords = True
DoCmd.OpenQuery "qry_Append_GPC_Data"

End Sub

The  "DoCmd.OpenQuery "qry_Append_GPC_Data"" line looks at this SQL:
SELECT * INTO tbl_GPC_Data FROM qry_GPC_Data;

Any help is appreciated.  Thank you.  Karen


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Keywords: Looking for the most efficient code to e…
Title
1 strSQL
2 strSQL
3 The pop-up filter does not filter the na…
4 strSQl type mismatch
5 Assinging strSQL to a variable
6 currentdb - causing error
 
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Zone: Microsoft Access Database
Tags: access, pass, queries
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Solution Provided By: jefftwilley
Participating Experts: 4
Solution Grade: A
 
 
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