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* Need a help in regexp
@ 2010-05-06 14:48 Nicholas I <nicholas.domnic.i@gmail.com>
2010-05-06 14:53 ` Fwd: Need a help in regexp Nicholas I <nicholas.domnic.i@gmail.com>
2010-05-06 15:04 ` Re: Need a help in regexp A. Kretschmer <andreas.kretschmer@schollglas.com>
2010-05-06 15:37 ` Re: Need a help in regexp Leif Biberg Kristensen <leif@solumslekt.org>
0 siblings, 3 replies; 4+ messages in thread
From: Nicholas I @ 2010-05-06 14:48 UTC (permalink / raw)
To: pgsql-sql
Hi,
Need a help in regexp!
I have a table in which the data's are entered like,
Example:
One (1)
Two (2)
Three (3)
I want to extract the data which is only within the parentheses.
that is
1
2
3
i have written a query,
*select regexp_matches(name,'([^(]+)([)]+)','g') from table;*
which outputs the data as,
{"test"}
{"test2"}
Thank You
Nicholas I
^ permalink raw reply [nested|flat] 4+ messages in thread
* Fwd: Need a help in regexp
2010-05-06 14:48 Need a help in regexp Nicholas I <nicholas.domnic.i@gmail.com>
@ 2010-05-06 14:53 ` Nicholas I <nicholas.domnic.i@gmail.com>
2 siblings, 0 replies; 4+ messages in thread
From: Nicholas I @ 2010-05-06 14:53 UTC (permalink / raw)
To: pgsql-general@postgresql.org
---------- Forwarded message ----------
From: Nicholas I <nicholas.domnic.i@gmail.com>
Date: Thu, May 6, 2010 at 8:18 PM
Subject: Need a help in regexp
To: pgsql-sql@postgresql.org
Hi,
Need a help in regexp!
I have a table in which the data's are entered like,
Example:
One (1)
Two (2)
Three (3)
I want to extract the data which is only within the parentheses.
that is
1
2
3
i have written a query,
*select regexp_matches(name,'([^(]+)([)]+)','g') from table;*
which outputs the data as,
{"test"}
{"test2"}
Thank You
Nicholas I
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Need a help in regexp
2010-05-06 14:48 Need a help in regexp Nicholas I <nicholas.domnic.i@gmail.com>
@ 2010-05-06 15:04 ` A. Kretschmer <andreas.kretschmer@schollglas.com>
2 siblings, 0 replies; 4+ messages in thread
From: A. Kretschmer @ 2010-05-06 15:04 UTC (permalink / raw)
To: pgsql-sql
In response to Nicholas I :
> Hi,
>
> Need a help in regexp!
>
> I have a table in which the data's are entered like,
>
> Example:
>
> One (1)
> Two (2)
> Three (3)
>
> I want to extract the data which is only within the parentheses.
>
> that is
> 1
> 2
> 3
>
> i have written a query,
> select regexp_matches(name,'([^(]+)([)]+)','g') from table;
> which outputs the data as,
> {"test"}
> {"test2"}
>
>
> Thank You
> Nicholas I
test=*# select * from regex ;
t
-----------
one (1)
two (2)
three (3)
(3 Zeilen)
Zeit: 0,262 ms
test=*# select regexp_replace(t, '[^0-9]','','g') from regex;
regexp_replace
----------------
1
2
3
(3 Zeilen)
Regards, Andreas
--
Andreas Kretschmer
Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header)
GnuPG: 0x31720C99, 1006 CCB4 A326 1D42 6431 2EB0 389D 1DC2 3172 0C99
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Need a help in regexp
2010-05-06 14:48 Need a help in regexp Nicholas I <nicholas.domnic.i@gmail.com>
@ 2010-05-06 15:37 ` Leif Biberg Kristensen <leif@solumslekt.org>
2 siblings, 0 replies; 4+ messages in thread
From: Leif Biberg Kristensen @ 2010-05-06 15:37 UTC (permalink / raw)
To: pgsql-sql
On Thursday 6. May 2010 16.48.26 Nicholas I wrote:
> Hi,
>
> Need a help in regexp!
>
> I have a table in which the data's are entered like,
>
> Example:
>
> One (1)
> Two (2)
> Three (3)
>
> I want to extract the data which is only within the parentheses.
>
> that is
> 1
> 2
> 3
>
> i have written a query,
> *select regexp_matches(name,'([^(]+)([)]+)','g') from table;*
> which outputs the data as,
> {"test"}
> {"test2"}
If what you've got inside the parentheses always is an integer, and it's
always the only or first integer in the string, you can use:
SELECT (REGEXP_MATCHES(bar, E'(\\d+)'))[1] FROM foo;
You can even cast it to an integer on the fly:
SELECT (REGEXP_MATCHES(bar, E'(\\d+)'))[1]::INTEGER FROM foo;
Or as a more general case, whatever's inside (the first) set of parentheses:
SELECT (REGEXP_MATCHES(bar, E'\\((.+?)\\)'))[1] FROM foo;
regards,
--
Leif Biberg Kristensen
http://solumslekt.org/blog/
^ permalink raw reply [nested|flat] 4+ messages in thread
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2010-05-06 14:48 Need a help in regexp Nicholas I <nicholas.domnic.i@gmail.com>
2010-05-06 14:53 ` Nicholas I <nicholas.domnic.i@gmail.com>
2010-05-06 15:04 ` A. Kretschmer <andreas.kretschmer@schollglas.com>
2010-05-06 15:37 ` Leif Biberg Kristensen <leif@solumslekt.org>
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