[AccessD] Modifying a query

Rocky, This function has been in my toolkit so long I forget where I got it.
Probably from this list!
Jim Hale

Function ahtDoesObjExist(strObj As String, intType As Integer) As Boolean
'This function returns True if an object exists, false if it doesn't
    '-------------------------------------------------------------------
    Dim strName As String
    Dim db As Database
    Dim strCon As String
    
    
    On Error GoTo ahtDoesObjExist_Err
    
    Set db = CurrentDb()
    Select Case intType
        Case acTable
            strName = db.TableDefs(strObj).Name
        Case acQuery
            strName = db.QueryDefs(strObj).Name
        Case acForm, acReport, acMacro, acModule
            Select Case intType
                Case acForm
                    strCon = "Forms"
                Case acReport
                    strCon = "Reports"
                Case acMacro
                    strCon = "Scripts"
                Case acModule
                    strCon = "Modules"
            End Select
            strName = db.Containers(strCon).Documents(strObj).Name
    End Select
    ahtDoesObjExist = True

ahtDoesObjExist_Exit:
    Exit Function
       
ahtDoesObjExist_Err:
    ahtDoesObjExist = False
    Resume ahtDoesObjExist_Exit
    
End Function


-----Original Message-----
From: Rocky Smolin - Beach Access Software [mailto:bchacc at san.rr.com]
Sent: Wednesday, June 07, 2006 5:47 PM
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] Modifying a query


Jim:

I think you're right.  Delete and re-create was where I was heading if I 
want to keep this query in the string of queries the user wants to 
execute through a macro that they set up.

"ahtDoesObjExist "  whuzzat?


Regards,

Rocky


Hale, Jim wrote:
> I may have missed this suggestion from earlier in the thread, but why not
> delete the old query and recreate it with the new criteria? I do it a lot
> with passthrough queries but it can be done with regular Access queries as
> well. Something like these code snippets (this ex creates a passthrough
> query)
>
> Dim qdfPassthrough As QueryDef, rstPassthrough As Recordset
> 'delete old version of query
> 	if ahtDoesObjExist("qryDownload", acQuery) Then DoCmd.DeleteObject
> acQuery, "qryDownload"
>      strPassthrough = "SELECT * from GLTLIB.GLMSL"     
>     ' Create pass-through query
>     Set qdfPassthrough = db.CreateQueryDef("qryDownload")
>     qdfPassthrough.Connect = "ODBC;DSN=AS400Prod;"
>     qdfPassthrough.SQL = strPassthrough
>      ' Tell Access to wait as long as the query takes
>     qdfPassthrough.ODBCTimeout = 0
>       Set rstPassthrough = qdfPassthrough.OpenRecordset()
>       qdfPassthrough.ReturnsRecords = True
>
> query qryDownload will show up in the Database container
>
> Jim Hale
>

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