Re: Re: Same question about PostgreSql

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Josh Berkus
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Re: Re: Same question about PostgreSql
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web-41031@davinci.ethosmedia.com
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Same question about PostgreSql "Sergey E. Volkov" <sve@raiden.bancorp.ru>
Re: Same question about PostgreSql Poet/Joshua Drake <poet@linuxports.com>
Re: Same question about PostgreSql "Josh Berkus" <josh@agliodbs.com>
Re: Same question about PostgreSql Johannes Grødem <johs@copyleft.no>
Nils,

> I always thought that Pl/PgSQL functions where 'stored procedures'.
> Probably I'm wrong, but whats the difference between a Pl/PgSQL
> function
> and a stored procedure? (just curious).

Postgres functions have really expanded the concept of function, to the
point of *almost* being stored procedures.  However, there are still a
few things missing:

1. Stored procedures must be able to return a rowset, possibly mutiple
rowsets.
2. Stored procedures usually accept an indefinite number of parameters.
3. Stored procedures should be capable of logging their activites.
4. Stored procedures should have access to the full range of DB control
language, includign cursors, transactions, and error handling.

Of the 4. I'm only certain that 1. is part of the SQL92 spec.  Any more
authoritative opinions?

-Josh



______AGLIO DATABASE SOLUTIONS___________________________                                      Josh Berkus Complete information technology      josh@agliodbs.com  and data management solutions       (415) 565-7293 for law firms, small businesses        fax 621-2533   and non-profit organizations.      San Francisco

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