Auto Numbers under Oracle

Question

Hello,
how do get oracle generate an auto number. i.e. next number in
sequence. for example for id number?
new number = old number +1
alex
null

Answer 1

Oracle has sequence objects to handle this issue.
CREATE SEQUENCE my_counter;Then in your insert statements do something like this:
INSERT INTO mytable(id, other)
VALUES
(my_counter.nextval, 'value');
, where other and value are whatever you need them to be.
sequence_name.nextval and sequence_name.currval are the two most
useful options for sequences.
You can, of course, create a separate counter for each table on
which incrementing is needed.
See docs on other params available to the create sequence
command.
Andrew
Alex Korneyev (guest) wrote:
: Hello,
: how do get oracle generate an auto number. i.e. next number
in
: sequence. for example for id number?
: new number = old number +1
: alex
null