sequence in select
Hi,
I put the following into a function. Is this always going to give me a
sequence with an increment of 1 independently from other transactions?
If not what would be the standard way to return a sequence from a
query?
CREATE TEMPORARY SEQUENCE rank_seq;
SELECT nextval('rank_seq') FROM whatever ORDER BY id;
DROP SEQUENCE rank_seq;
thx.
Balázs
On Jun 22, 2006, at 9:10 AM, SunWuKung wrote:
Hi,
I put the following into a function. Is this always going to give me a
sequence with an increment of 1 independently from other transactions?
If not what would be the standard way to return a sequence from a
query?CREATE TEMPORARY SEQUENCE rank_seq;
SELECT nextval('rank_seq') FROM whatever ORDER BY id;
DROP SEQUENCE rank_seq;
That will do what you want.
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Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461