Comments for Radino's blog

Comment on Parsing CSV string by Seb

Seb — Tue, 03 Jan 2012 16:35:47 +0000

Thank you very much. Works perfectly and easy to adapt thanks to detailed explanation.

Comment on Bitwise OR Aggregate Function by Scott

Scott — Fri, 26 Aug 2011 02:02:51 +0000

We found this and used it to great success. Thanks much!

Comment on Bitwise OR Aggregate Function by Mark Mitchell

Mark Mitchell — Fri, 15 Apr 2011 16:48:52 +0000

a few months later and another satisfied blog reader. thank you.

Comment on Product aggregate function by Radoslav Golian

Radoslav Golian — Wed, 12 Jan 2011 21:47:00 +0000

Zukus, nice example for the model clause, but I would prefer group by for aggreagation
Rob van Wijk has great articles about model clause http://rwijk.blogspot.com/.
I’ve read them all, but still.. I use that clause very very rarely

Comment on Product aggregate function by Zukus

Zukus — Wed, 12 Jan 2011 11:20:00 +0000

Model example:

select
val
from dual
MODEL
dimension by ( 1 x )
measures (1 val)
rules
iterate( 4 ) — n_factorial
(
val[1] = val[1] * ( ITERATION_NUMBER + 1 )
)
;

Comment on Bitwise OR Aggregate Function by Radino’s blog » Bitcount aggregate function

Radino’s blog » Bitcount aggregate function — Wed, 17 Nov 2010 00:27:03 +0000

[...] a blog post after ages . Recently I received a new feedback on my two years old article on bitwise or aggregate function, where a visitor is looking for a bitcount aggregate function. This was a nice exercise for me. [...]

Comment on Bitwise OR Aggregate Function by Jefwork

Jefwork — Tue, 16 Nov 2010 21:28:05 +0000

Yes, 2 years later, this helps me a lot.
Now looking for a bitcount function to count the number of On-bits in a given number.
Thanks
Jef

Comment on How to implement sleeping by Radoslav Golian

Radoslav Golian — Fri, 08 Oct 2010 05:29:40 +0000

Comte, see the point 4. at the beginning of this post

Comment on How to implement sleeping by Comte

Comte — Thu, 07 Oct 2010 18:54:23 +0000

A piece of code to implement a sleep function in PL/SQL without relying on an extern package:

create table C_SLEEP_LOCK(Un) as select 1 from dual;

create or replace procedure C_sleep(seconds in number default 1) is

i number;

procedure sleep_on_rowlock is
pragma autonomous_transaction;
tmp number;
resource_busy exception;
pragma exception_init (resource_busy, -30006);
begin
select Un into tmp from C_SLEEP_LOCK for update wait 1;
exception
when resource_busy then null;
end;

begin

savepoint sleeper_savepoint;
select Un into i from C_SLEEP_LOCK for update;
for i in 1..seconds loop
sleep_on_rowlock;
end loop;
rollback to savepoint sleeper_savepoint;

end C_sleep;
/
You can now test:
Exec C_sleep(10); — 10 seconds (about) wait.

You can find the explanations there: http://blog.tanelpoder.com/2008/05/25/using-autonomous-transactions-for-sleeping/

Comment on How to implement sleeping by Shayna Laski

Shayna Laski — Thu, 07 Oct 2010 00:38:14 +0000

Nice post, thanks for posting. Now I just need to get up off the couch and actually do something… Pleasee continue this great work and I look forward to more of your great blog posts.