Sender: teo@flex.flex.ro
Message-ID: <36028E6C.4DA0964E@flex.ro>
Date: Fri, 18 Sep 1998 19:46:36 +0300
From: Constantin Teodorescu <teo@flex.ro>
Organization: FLEX Consulting Braila
MIME-Version: 1.0
To: PostgreSQL Interfaces <pgsql-interfaces@postgresql.org>
CC: PostgreSQL general <pgsql-general@postgresql.org>
Subject: PgAccess 0.90 new version released - user input query parameters
	available
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Hello everybody,

I just discovered today a quick hack in order to allow user input
variable parameters in queries.
This new version 0.90 implements this feature. As much as I have tested
it, it works fine and gives you more flexibility in handling variable
queries.

To use this feature, you must replace the value that you are searching
in a query with the function :

[parameter "Here goes the message"]

When opening this kind of query, PgAccess will popup a new window,
allowing you to enter the value that would be replaced in the query
definition.

Examples :
Go to Query Tab, hit "New" and enter the following query :

select * from invoices where year=[parameter "Enter the year for invoice
selection"]

Presuming you have a "invoices" table with a "year" field :-) this one
should work fine.
Another one :

select * from phones where company ~* '[parameter "Please enter the
company name"]'


BUGS
====
Query opening would probably fail if you are using a query where it can
be found by mistake a construction of [ .... ] form.
This will cheat Tcl who will try to execute the script between [ and ].
Try this :

select * from invoices where year=[bell] 

You will hear a beep, and of course, nothing will be selected.

The new version, as always at :
http://www.flex.ro/pgaccess
ftp://ftp.flex.ro/pub/pgaccess


All the best,
-- 
Constantin Teodorescu
FLEX Consulting Braila, ROMANIA