Sameer Borate shows how to turn things around in your application's SQL statement and, instead of selecting the columns you need, showing how to remove the columns you don't need dynamically.
The MySQL SELECT is a ubiquitous statement. You can select rows using the '˜*' operator or by listing the individual column names. But many times you may require using all the columns from a table except a couple of them. For example you may have a table containing twelve columns from which you require only eleven columns.
Sometimes that extra column can contain larger content you might not need or want. He creates a get_column_names and create_statement functions that grab the column names and, based on an "exclude" array, takes out the unwanted records. The array is then looped through and appended back together as the new column list for the select.