Обсуждение: Fwd: help on postgres regexp

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Fwd: help on postgres regexp

От
Nicholas I
Дата:


---------- Forwarded message ----------
From: Nicholas I <nicholas.domnic.i@gmail.com>
Date: Wed, May 5, 2010 at 8:35 AM
Subject: help
To: pgsql-sql@postgresql.org


Hi,

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


Thank You
Nicholas I


Re: Fwd: help on postgres regexp

От
Thom Brown
Дата:
On 6 May 2010 15:52, Nicholas I <nicholas.domnic.i@gmail.com> wrote:


---------- Forwarded message ----------
From: Nicholas I <nicholas.domnic.i@gmail.com>
Date: Wed, May 5, 2010 at 8:35 AM
Subject: help
To: pgsql-sql@postgresql.org


Hi,

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


Thank You
Nicholas I



Use a regular expression:

SELECT substring('this is a test(22)' from '\([0-9]+\)');

This would return 22.

Regards

Thom

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