On 27/03/2015 18:08, Suresh Raja wrote: > Hi All: > > > I have a very large table and the column type is text. I would like to > convert in numeric. How can I find rows that dont have numbers. I > would like to delete those rows. Use a regular expression: select <whatever> from <the table> where <the column> ~ <regexp> http://www.postgresql.org/docs/9.4/static/functions-matching.html#FUNCTIONS-POSIX-REGEXP HTH, Ray. -- Raymond O'Donnell :: Galway :: Ireland rod@xxxxxx -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general