On Wed, Aug 2, 2017 at 5:56 PM, Simon Slavin <slav...@bigfraud.org> wrote:

>
>
> On 2 Aug 2017, at 4:54pm, Peter Da Silva <peter.dasi...@flightaware.com>
> wrote:
>
> > Can’t you do the same basic logic then use (SELECT value FROM
> super_sequences WHERE id=’SEQ_1’) instead of SEQ_1.nextval?
>
> Actually, I don’t understand how sequences are superior to normal use of
> an AUTOINC column.  Can someone explain ?
>
>
Yes I can.

I need to use special number that I specified the start and increment.

for instance I have a entity with a lower number and upper number, I create
then a sequence like

CREATE SEQUENCE IF NOT EXISTS SEQ_RANGE START WITH 100 INCREMENT BY 100 ;

then I create many entities like:

insert into MYENTITY(LowerNumber,UpperNumber)
select SEQ_RANGE.currval+1, SEQ_RANGE.nextval
from MY_REF_TABLE
;
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