multiple search fields - security
I have tried repeatedly to get the DA search wizard to search multiple fields with one form post, however, I fail every time.
I've since reverted to the following type of query, but would like to know if this is secure or does it leave the database open to an SQL injection attack;
select fieldid, field1, field2, field3 from tablename
where field1 LIKE % keyword % OR field2 LIKE % keyword % OR field3 LIKE % keyword %
This works fine - but I'd like a bit if reassurance, please!