How to fetch Junk values and its columns dynamically

Question

Hello,
Can anyone help me in writing a procedure/dynamic SQL to fetch the column where the junk values appears and its value. Eg: If emp table contains ID and Name columns, and ID column contains junk values, the result should be the Id column and the junk value/s. It should be dynamic because next time if the other column contains junk values(like $,%...), the query should display the other column too..
Thanks in advance..

Answer 1

Can anyone help me in writing a procedure/dynamic SQL to fetch the column where the junk values appears and its value. Eg: If emp table contains ID and Name columns, and ID column contains junk values, the result should be the Id column and the junk value/s. It should be dynamic because next time if the other column contains junk values(like $,%...), the query should display the other column too..1. define "junk" values.
2. usually it does not matter what values are in ID, because it is used internally by application, to maintain uniqueness or relations, not having any semantical meaning. End users usually should not see IDs, such IDs are generated automatically. There is no need to cleanse them from "junk" values.
3. If you made a typo, and you are looking for "junk" values in Name column, it is a different story. You can use TRANSLATE to search such values, as already advised, translating all "junk" characters to one "junk" character and searching for the latter.
select id, name from T where translate(name,'?@#$%^<>','~~~~~~~~~') like '%~%';
Edited by: Mark Malakanov (user11181920) on Jan 4, 2013 11:40 AM