Обсуждение: Oracle to POSTGRESQL
Hi there
I have been developing a web application using an Oracle database on the backend, and Java beans and JSP for the front-end.
At a late stage in the project I have been asked to look into the viability of
hosting the application with postgreSQL as the backend database.
Now my major concern is that we developed a whole bunch of scripts for table definitions,
triggers, sequences and Stored Procedures using Oracle standard PLSQL and datatypes.
Should I decide to change to PostGRESQL, what course of action would you recommend I take?
Regards,
Jono
On Thu, 5 Oct 2000, Jono wrote: > Hi there > > I have been developing a web application using an Oracle database on the backend, and Java beans and JSP for the front-end. > > At a late stage in the project I have been asked to look into the viability of > hosting the application with postgreSQL as the backend database. > > Now my major concern is that we developed a whole bunch of scripts for > table definitions, triggers, sequences and Stored Procedures using > Oracle standard PLSQL and datatypes. > Should I decide to change to PostGRESQL, what course of action would > you recommend I take? Depending on amount of code (1000 lines vs 100000 lines), you should start either converting it to plpgsql, or hiring someone to enhance plpgsql to be more like pgsql ;) In general, for reasonable sizes of code, I wouldn't expect major problems, mostly dealing with syntactic differences. If you are using advanced plsql stuff, like exceptions, DBMS_ builtin packages, or rely on oracle's system catalogs, you'll have to rewrite that...And with exceptions, you'll need to rethink it too :( -alex