Whats the standard way of getting the last insert id?

Question

What\'s the sql standard to get the last inserted id? If there is such a thing.

mysql: LAST_INSERT_ID()
postgresql: ... RETURNING f_id
mssql: SCOPE_IDENTIT

Answer 1

The one technique is likely to work with all DBs, and in circumstances where the sequence is not a simple incrementing number (e.g. there are pre-existing rows with high ids, so you can't use MAX), is:

1. Determine what the next id will be, e.g. using nextval function or similar.
2. Insert the row using that id.
3. Use the id for the rest of your needs.