Greetings!
The database we install at our customers as part of our
product includes an event_history table. For some reason lost in the mists
of time, the most important field in that table, the description, is a varchar
field specified to be only 64 characters long. This leads me to a more
fundamental question: why specify the length of a varchar field at
all? Is there a big difference between the amount of disk space taken up
by "abc" stored in a varchar(64) field and stored in a varchar field? How
much space does an unspecified-length varchar field take up? Are there
other reasons to use varchar(64) instead of varchar?
Thank you very much!
RobR
