Thomas,
I usually solve this kind of problem with recusive CTEs providing a
counter for the records returned, thus a simple select statement can
nicely filter on this kind of property without row numbers functionality.
Can you provide an example, please.
I, for one, can't imagine how a CTE
Oops, forgot the ordering and of course, it can be optimized like this:
with recursive CTE_NR as
(select
1 as NR,
t.ID,
(select first 1 skip 5 t1.ID from TBL t1 where t1.ID t.ID order by
t1.ID) as NXT
from (select first 1 t.ID from TBL t order by t.ID) t
union all select
NR
On 29-7-2014 09:47, Svein Erling Tysvær
svein.erling.tysv...@kreftregisteret.no [firebird-support] wrote:
Don't know whether windowing functions can be used in the WHERE clause, but
when Firebird 3 is released, it would be tempting to try things like
WHERE MOD(ROW_NUMBER() OVER (ORDER BY
On Jul 22, 2014, at 9:47 AM, 'checkmail' check_m...@satron.de
[firebird-support] firebird-support@yahoogroups.com wrote:
I would like to read every n record, depending on number of records.
Do you care if your results are repeatable? If so, you'll have to sort all the
records then skip
Ann,
On Jul 22, 2014, at 9:47 AM, 'checkmail' check_m...@satron.de [firebird-
support] firebird-support@yahoogroups.com wrote:
I would like to read every n record, depending on number of records.
Do you care if your results are repeatable? If so, you'll have to sort all
the
records then
Ann,
On Jul 22, 2014, at 9:47 AM, 'checkmail' check_m...@satron.de [firebird-
support] firebird-support@yahoogroups.com wrote:
I would like to read every n record, depending on number of records.
Do you care if your results are repeatable? If so, you'll have to sort all
the
records then
On Jul 22, 2014, at 9:47 AM, 'checkmail' check_m...@satron.de
[firebird- support] firebird-support@yahoogroups.com wrote:
I would like to read every n record, depending on number of records.
Do you care if your results are repeatable? If so, you'll have to
sort all the records then
Thomas,
I usually solve this kind of problem with recusive CTEs providing a counter
for
the records returned, thus a simple select statement can nicely filter on
this kind of property without row numbers functionality.
Can you provide an example, please.
I, for one, can't imagine how a CTE
and mod(id,:teiler)=0)
it works
Von: firebird-support@yahoogroups.com
[mailto:firebird-support@yahoogroups.com]
Gesendet: Dienstag, 22. Juli 2014 14:47
An: firebird-support@yahoogroups.com
Betreff: [firebird-support] Skip records
Hello,
I would like to read every n record
@yahoogroups.com
[mailto:firebird-support@yahoogroups.com]
Gesendet: Dienstag, 22. Juli 2014 14:47
An: mailto:firebird-support@yahoogroups.com
firebird-support@yahoogroups.com
Betreff: [firebird-support] Skip records
Hello,
I would like to read every n record, depending on number
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