It's already been discussed several times around here. Personally I find that building a module that fetches data from table(s) such as you propose with get_data([qw/foo bar baz/]...) works for simple situations, but will rapidly break when you start having a complex database where multiple tables need to be accessed for any particular request.

Therefore I much prefer creating logical requests that map to perl subroutines (i.e. addNewUser(), getUserInformation(), etc) that either call SQL stored procedures (my preference) or, if these aren't available, have the SQL in the subroutine.

This will also have the advantage of forcing you to structure your app a little so that you only need to create a limited number of database access methods/subroutines. This will have a huge benefit on the maintainability of the database, and on figuring out what indexes are needed (f.ex. right now one of my clients has a largeish database (about 20GB) where there is very little structure - trying to figure out what indexes are needed, and what queries are actually run is a nightmare, requiring the use of "auditing" (i.e. recodring *all* SQL that is sent to the server) and sifting through gigabytes of SQL code...)

Michael

In reply to Re: Abstracting sql by mpeppler
in thread Abstracting sql by BUU

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