> Howdy:
>
> I am coming from the Windows world, and Microsoft SQL variants in
> particular. Both Access and SQL Server have autoincrement data types --
> I understand that Postgresql has "sequences" which do the same thing,
> but I can't find any documentation on them. I have browsed all the
> online documentation that comes with Postgresql, and can't find anything
> about it. Could someone point me to some docs that would explain how to
> use sequences?
>
man create_sequence
> I have a similar question about oid's. I am not sure what they are --
> from their name, I would guess that they are autoassigned, unique
> identifiers for each row in a table.
Yes. oid stands for Object I.D. Remember postgress is documented in an
object oriented way. The tables definitions is called the "class" from which
the "objects" (records) are instantiated.
> Is that correct? If so (or even
> if not), how do I create and use them.
They are created automatically. To access them type:
select oid from blah;
> Any documentation that addresses
> oid usage specifically?
don't know. I kind of picked up the info from the list.
> I am confused because oid's seem to be to
> substitute for the BLOB data type which is available in other RDBMS's.
No they are not even close to the same thing.
Hope this helps...james