Select longest records from the database

To find the longest record in your table you can use this query:

SELECT max(length(column_name)) from table_name 

This can help you in optimizing the size of your tables.

SELECT column_name FROM table_nameWHERE length(column_name) =
( SELECT max(length(( SELECT max(length(column_name)) from table_name );

Result is a list of records with the longest length