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PostgreSQL function HOWTO return a table

Asked by Beringhs in PostgreSQL Database, PL / SQL

Tags: postgreSQL functiun table, mySQL

Hi experts!

I am currently rebuilding a reporting application using BIRT. Before developping to much, I want to be sure of the database software choice I will have to live with.

I started with mySQL, and could write a fairly sophisticated stored procedure pretty fast, based on my TSQL knowledge. Now I suspect postgreSQL to be even more efficent (and less risky in the future as not taken over yet by a major competitor). It seems to me that pgSQL has many more developping features, plus ready to use statistical functions that I need. I feel much more confident with its querying interface, too.

I had to struggle a lot, yesterday, to convert the MySQL stored proc into pgSQL. Learned about pure SQL not being able to declare variables, about case sensitivity, aso. As for now, even if still not perfect at all, my function is created.

However, it should return a dataset, and it does not. Calling the function returns an well known error message: "la requête n'a pas de destination pour les données résultantes", ie "no destination for the query results".

This is the last step I cannot overcome. Can anyone give me a hint?

In fact, I would be interested in reading a basic pgSQL function returning a dataset and how to call it.

Of course, I am also interested in knowing your opinion on postgres a a DBMS instead of MySQL, and if there are other open source choices to consider.

Thank you for your help!

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PostgreSQL function HOWTO return a table

Asked by Beringhs in PostgreSQL Database, PL / SQL

Tags: postgreSQL functiun table, mySQL

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