Re: MS-Access and Stored procedures - Mailing list pgsql-general

I was using ADO command object and both refresh method and method with
creating parameter object while working with Access Project...but I didn't
try to use it with PostgreSQL...
I would rather like to have all queries on client side anyway. Therefore I
use pass-through queries. But it doesn't allow using parameters (execept by
concatenation). Also, you can't base subforms on pass-through queries, so
now I use strange combination of local tables, append queries with
parameters based on pass-through queries etc. It works but I'm aware that it
is not very clever:)...
I think that it would be great if pass-through queries could accept
parameters. That would be a powerfull way for executing queries on client,
while keeping all the code on front-end side...But I doubt that Microsoft
will work on further Access improving anymore. It seems that Access is left
behind while VS.NET is top technology. Too bad...

IS there any good book covering MS Access usage as front-end for different
database servers except MSDE ?

Do you have form/subform/subform...based on stored procedures ? If so, how
do you synchronize form with subform ?


Greetings,

Zlatko


----- Original Message -----
From: "Hervé Inisan" <typo3@self-access.com>
To: <pgsql-general@postgresql.org>
Sent: Thursday, May 12, 2005 11:06 PM
Subject: Re: [GENERAL] MS-Access and Stored procedures


>> Hello...This is very interesting. I have also asked myself
>> how to prepare and execute stored procedures on POstgre from
>> MS Access.
>> Could you, please, give some example of Postgre function with
>> parameters that is executed as stored procedure from MS
>> Access? How would you pass parameters ? Using ADO Command object?
>
> AFAIK, there are 2 ways to send parameters from Access to a PG function,
> using ADO:
>
> 1. Write the parameters as the CommandText string:
> Set cmd = New ADODB.Command
> cmd.ActiveConnection = cnn
> cmd.CommandText = "mypgfunction('this is a parameter', 25)"
> cmd.CommandType = adCmdStoredProc
> cmd.Execute
> Set cmd = Nothing
>
> The CommandText string can be the result of a concatenation:
> Cmd.CommandText = "mypgfunction('" & strMyString & "', " & intMyValue &
> ")"
>
> 2. Another way is to use "true" ADO parameters:
> Set cmd = New ADODB.Command
> cmd.ActiveConnection = cnn
> cmd.CommandText = "mypgfunction"
> cmd.CommandType = adCmdStoredProc
>
> Dim prm1 As ADODB.Parameter
> Set prm1 = New ADODB.Parameter
> With prm1
>    .Type = adVarChar
>    .Direction = adParamInput
>    .Value = "another string sent to PG"
>    .Name = "param1"
>    .Size = 30
> End With
>
> Dim prm2 As ADODB.Parameter
> Set prm2 = New ADODB.Parameter
> With prm2
>    .Type = adInteger
>    .Direction = adParamInput
>    .Value = 25
>    .Name = "param2"
>    .Size = 0
> End With
> cmd.Parameters.Append prm1
> cmd.Parameters.Append prm2
> cmd.Execute
> Set cmd = Nothing
>
> Voilà!
> -- Hervé Inisan, www.self-access.com
>
>
>
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