I am parsing log file lines from a legacy, proprietary application into a nice easy to query DB. The log lines have no unique integer ID. They do have a UNIX timestamp as an 8 character hex string. ...
Looking at this question, it seems, that other sites too have the problem of increasing column sizes in the process of time. Increasing just the size of a column in a table is a rather simple task. ...
Is there a performance difference in MySQL between varchar sizes? For example, varchar(25) and varchar(64000). If not, is there a reason not to declare all varchars with the max size just to ensure ...