On Fri, 12 Jul 2002, Alberto Serra wrote:
> Ricardo Fitzgerald wrote:
>> I started with PHP and MYSQL a while ago and now I've been involved in
>> a huge database project with ORACLE. 
> Have the Oracle box do most of it. Make sure that:
> 1) there is  a well defined API for external application (including your 
> PHP client) to access data. This *must* written an paper and documented. 
> No code writing prior to this.
> 2) all about referential integrity is done within Oracle
> 3) use triggers and SPs to enforce data consistency (handle with care, 
> they load the db server if used unproperly)
> 4) find a good DBA to maintain the system (Oracle can degrade quite 
> dramatically if not properly maintained)
> 5) interact very little with the DB, to avoid loading its server. (That 
> is, call an SP, get the result set from a tmp table)
> 6) avoid locking as much as you can
> 7) Prey the current Oracle bugs are not too evil.
> 8) get ready to say good bye to your vacations.
> 9) ask for a paycheck raise

This is all very good advice (especially 4 and 8).

Oracle can do amazing things but if you just pretend it's MySQL you'll 
have a pretty miserable time. Learn about triggers and stored procedures 
and views and you will be amazed at how quickly and scalably you can do 
very complicated things.

Don't learn about indexing and table optimization and you will be amazed 
at how slow your application is.


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