Try this:
select t.name, t.data, coalesce(t.data -(select data from t1 d where d.id =
t.id -1),0) from t1 t
--
regards,
Michał Kurczabiński
Try this:
gfix.exe" -mend -full -ignore -user sysdba -pass masterkey
"your_corrupted_db.fdb"
--
regards,
Michał Kurczabiński
This should explain:
https://www.youtube.com/watch?v=yepjPiVIzPc
--
pozdr,
Michał Kurczabiński
Code from fb 2.5 does not work:
update rdb$relation_fields set rdb$description = 'aaa'
where rdb$field_name = 'new_name" and rdb$relation_name = 'table_name'
Update operation is not allowed for system table rdb$ralation_fields
FB 3.0.2.32692
--
pozdr,
Michał Kurczabiński
Something was wrong with database file.fdb , even after gbak restore. I
deleted file for FB 3.X and recreate new database with FB 3.0.2. Now times
are similar to FB 2.5. FB_3.0.2 seems to be slighty faster than 3.0.1.
now:
//3.0.1
SQL> select count(*) from t1;
PLAN (T1 NATURAL)
Current memory
In my box in isql mode ( win7_x64, dedicated ssd drive for databases)
default db configuration
is still difference between 2.5 and 3.0:for select first 100 *
(now over 100% of time fb 2.5)
//2.5
SQL> select count(*) from t1;
Current memory = 34646136
Delta memory = 0
Max memory = 34728928
//2.5.7
Database header page information:
Flags 0
Checksum12345
Generation 37
Page size 16384
ODS version 11.2
Oldest transaction 26
Oldest active 27
So write yourown udf in your favourite language or write stored procedure
eg. make_crosstab(sql varchar(500)) which parse sql and create crosstab
selectable procedure in fly from given sql. You will be able to select *
from crosstab as in postgres.
--
regards,
Michał Kurczabiński
Hi,
fb 2.5.7.27050_0_x64
fb 3.0.1.32609_0_x64
same table and data:
create table t1 ( id integer not null, n varchar(100))
commit
alter table t1 add primary key (id)
commit
//now insert 10 mln recs.
execute block as
declare i integer;
declare v varchar(100);
begin
i = 0;
while (i <
Thanks for your answer,
perhaps problem is in jaybird-3.0.0-beta-3 used to connection to fb 3.
My fb25 client is jaybird-2.2.12 and works fine.
--
regards,
Michał Kurczabiński
With isql is same issue?
I have with flamerobin on remote machine big delay, while with eg. orbada
database manager there is no additional delay.
--
Regards,
Michał Kurczabiński
I think it depends on how you create and maintain connection with FB
--
Regards,
Michał Kurczabiński
>Creating of a view is an old method. Firebird 3 just prohibit hacks with
> direct changes
> of system tables.
ALTER TABLE table_name RENAME TO new_table_name
is also old method without direct hacking of system tables...
--
Regards,
Michał Kurczabinski
If your delphi does not support firedac connection to fb/fb3, try zeoslib
ver. 7.2.1-rc (sf.net). It supports fb3
--
pozdrawiam / regards,
Michał Kurczabiński
In future beware of something like this:
select cast('text' as blob)a from rdb$database
union
select cast('text' as blob)a from rdb$database
list() returns blob...
http://tracker.firebirdsql.org/browse/CORE-1345
--
regards,
Michał Kurczabiński
First thought:
you should cast as varchar list expr as
cast (list(distinct 'I shouldn''t duplicate') as varchar(100)),
cast(list(distinct substring('Hello' from 1 for 5)) as varchar(100))
in each occurence of list
--
regards,
Michał Kurczabiński
What about indices?
Can you show PLAN of those queries ?
--
Regards,
Michał Kurczabiński
Try this:
SELECT parent.name, COUNT(product.name)
FROM nested_category AS node ,
nested_category AS parent,
product
WHERE node.lft BETWEEN parent.lft AND parent.rgt
AND node.category_id = product.category_id
GROUP BY parent.name
ORDER BY min(node.lft)
--
Maybe it will be usefull:
ProblemType: Crash
Architecture: amd64
Date: Tue May 2 23:55:26 2017
DistroRelease: Ubuntu 14.04
ExecutablePath: /opt/firebird-debug/bin/.debug/firebird.debug
ExecutableTimestamp: 1490087772
ProcCmdline: /opt/firebird-debug/bin/.debug/firebird.debug
ProcCwd: /tmp
Problem solved.
Strange behavior of lazarus 1.6.2 IDE for linux, project settings like "use
ansistrings" are not correctly propagated ...
I had to set it in custom fpc settings -Sh to fix this..
--
Regards,
Michał Kurczabiński
Tested on FB 2.5.7 and 3.02 ubuntu_x64 14.04 (two different machines);
On windows fbx64 works ok.
udf return integer by value.
scenario:
more than 2 connections to db
sql : select count(*) from table where validfield(field) = 1 on each connection
table with > 2 milions record
udf written in
2018-11-07 16:33 GMT+01:00, Dimitry Sibiryakov s...@ibphoenix.com
[firebird-support] :
> 07.11.2018 16:28, Michal Kurczabinski michk...@gmail.com [firebird-support]
> wrote:
>> Firebird also doesn't support data partitioning, extended window
>> functions
>
>On the
2018-11-07 19:06 GMT+01:00, Mark Rotteveel m...@lawinegevaar.nl
[firebird-support] :
> On 2018-11-07 16:28, Michal Kurczabinski michk...@gmail.com
> [firebird-support] wrote:
>> Firebird also doesn't support data partitioning, extended window
>> functions
>
> Wha
Firebird also doesn't support data partitioning, extended window functions
--
Regards,
Michal Kurczabinski
2018-11-06 14:44 GMT+01:00, Fabiano Bonin
fabiano.bo...@personalsoft.com.br [firebird-support]
:
> Firebird doesn't support schemas.
> This is the main reason I am replacing it by
22:51, Michal Kurczabinski michk...@gmail.com
> [firebird-support] wrote:
>> First thought:
>>
>> range/rows between unbounded preceding and unbounded following /
>> current row, etc..
>
> Will be added in Firebird 4 (already present in the Firebird 4 Alpha 1).
>
2019-03-12 16:56 GMT+01:00, Mark Rotteveel m...@lawinegevaar.nl
[firebird-support]
>
> FILTER has been implemented in Firebird 4. See "FILTER Clause for
> Aggregate Functions" in the Firebird 4 beta 1 release notes, or
> http://tracker.firebirdsql.org/browse/CORE-5768
Great!
> Note though that
Is this old bug from FB 2.5.x or some kind of feature ?
This still exists in FB 3.x
with cte as
(select 1 cnt from rdb$database
union all
select 2 from rdb$database
)
select list(cnt) from cte
union
select list(cnt) from cte
--
Regards,
Michał Kurczabiński
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