Re: re[GENERAL] moving a portion of text
On Mon, Oct 20, 2008 at 04:21:31AM -0700, pere roca wrote: I have a column with full of data like ATB-OO NCK-TT how can I easily remove the - ? If you just want to remove all the dashes then I'd use a regex; something like: UPDATE table SET data = regexp_replace(data, '-', '', 'g'); This says, modify the table replacing every instance (the 'g' option) of a dash with an empty string in the data column. it seems that the - is allways the fourth letter. another option in that case would be to use a couple of calls to substring() instead of the regex call: substring(data FROM 1 FOR 3) || substring(data FROM 4); The manual page[1] contains more complete descriptions of the functions that operate on text. If you haven't come across regexs before then I'd recommend playing around with them, they're very useful and appear in lots of places--most text editors will allow you to search and replace using them, doing much more interesting things that I did above. Sam [1] http://www.postgresql.org/docs/current/static/functions-string.html -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
re[GENERAL] moving a portion of text
hi, I have a column with full of data like ATB-OO NCK-TT how can I easily remove the - ? it seems that the - is allways the fourth letter. thanks, Pere -- View this message in context: http://www.nabble.com/removing-a-portion-of-text-tp20067248p20067248.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: re[GENERAL] moving a portion of text
--- On Mon, 10/20/08, pere roca [EMAIL PROTECTED] wrote: From: pere roca [EMAIL PROTECTED] Subject: re[GENERAL] moving a portion of text To: pgsql-general@postgresql.org Date: Monday, October 20, 2008, 11:21 AM hi, I have a column with full of data like ATB-OO NCK-TT how can I easily remove the - ? it seems that the - is allways the fourth letter. thanks, Pere -- View this message in context: http://www.nabble.com/removing-a-portion-of-text-tp20067248p20067248.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. with fixed length select substring(tex1,1,3) || substring(tex1,5) from t1 with variable length select substring(tex1,1,strpos(tex1,'-'::varchar)-1) || substring(tex1,strpos(tex1,'-'::varchar)+1) from t1 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general