[thelist] SQL partial field SELECT query

Les Lytollis leslytollis at dimensions-corporatewear.co.uk
Fri Oct 10 08:10:22 CDT 2003


Hi All
 
I need help with an ANSI SQL SELECT query - or maybe there is another
easier way I am missing.
 
I am building a web front end to our SOP system for online ordering.
 
The products are clothes and obviously come in a range of sizes. So I
would expect a user to see a catalogue of shirts ,trousers, etc, select
a garment, then select the required size, colour, etc.
 
 
However, because of the way the data is held in the legacy system, each
garment / size / colour variant has its own product code which
implicitly holds this info and the data is not normalised.
 
For example, Ladies Navy Skirt has a "stock code" of A123, but each
product has a "product code" such as A123-12S, A123-12R, A123-12L and
the stock code is not held anywhere in the DB. 
 
SO if I want to get a "sizeless" product I would have to parse the
product code to get only the first four characters, then to get sizes
available I would have to parse the field "WHERE productcode LIKE
'A123%'" and capture the "%" bit. 
 
My problem comes in finding a way to SELECT DISTINCT on a partial field
search (the A123 bit) in order to get eg "Ladies Navy Skirt" without
sizes. 
 
Am I missing some simpler option?
 
regards
Lez
 



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