Stored procedures or OR mappers?

Question

Which is better? Or use and OR mapper with SP\'s? If you have a system with SP\'s already, is an OR mapper worth it?

Answer 1

Definitely ORMs. More flexible, more portable (generally they tend to have portability built in). In case of slowness you may want to use caching or hand-tuned SQL in hot spots.

Generally stored procedures have several problems with maintainability.

• separate from application (so many changes have now to be made in two places)
• generally harder to change
• harder to put under version control
• harder to make sure they're updated (deployment issues)
• portability (already mentioned)