searching for characters via the hexidecimal value

yes, there is.

select <your columns> from <your table> where

<your_text_search_column> like '%'||chr(x'42'::int)||'%'

where '42' is your hexadecimal character value.

Be sure to read and understand everything you can find about encodings; and
make sure the hexadecimal value you are searching for is from the same
encoding.

Best wishes,

Harald

On Mon, Jan 24, 2011 at 16:00, Geoffrey Myers
<lists@serioustechnology.com>wrote:

Is there a way to search for a character in the database by the hexidecimal
value of that character?

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Until later, Geoffrey

"I predict future happiness for America if they can prevent
the government from wasting the labors of the people under
the pretense of taking care of them."
- Thomas Jefferson

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Massa, Harald Armin wrote:

yes, there is.

select <your columns> from <your table> where

<your_text_search_column> like '%'||chr(x'42'::int)||'%'

This does not work for me, but if I convert the hex value to octal this
does work:

select comments from fax where comments ~* E'\231';

where '42' is your hexadecimal character value.

Be sure to read and understand everything you can find about encodings;
and make sure the hexadecimal value you are searching for is from the
same encoding.

Best wishes,

Harald

On Mon, Jan 24, 2011 at 16:00, Geoffrey Myers
<lists@serioustechnology.com <mailto:lists@serioustechnology.com>> wrote:

Is there a way to search for a character in the database by the
hexidecimal value of that character?

--
Until later, Geoffrey

"I predict future happiness for America if they can prevent
the government from wasting the labors of the people under
the pretense of taking care of them."
- Thomas Jefferson

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<mailto:pgsql-general@postgresql.org>)
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http://www.postgresql.org/mailpref/pgsql-general

--
GHUM GmbH
Harald Armin Massa
Spielberger Straße 49
70435 Stuttgart
0173/9409607

Amtsgericht Stuttgart, HRB 734971
-
persuadere.
et programmare

--
Until later, Geoffrey

"I predict future happiness for America if they can prevent
the government from wasting the labors of the people under
the pretense of taking care of them."
- Thomas Jefferson

On 2011-01-24, Geoffrey Myers <lists@serioustechnology.com> wrote:

Massa, Harald Armin wrote:

This does not work for me, but if I convert the hex value to octal this
does work:

select comments from fax where comments ~* E'\231';

you can do hex like this:

select comments from fax where comments ~* E'\x99';

or if your hex is unicode

select comments from fax where comments ~* U&'\2122';

http://www.postgresql.org/docs/8.4/static/sql-syntax-lexical.html

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