Phil,
To start with MySQL tables aren't sorted unless some type of maintenance is
taking place, and many of those operations can be done on copies of the
tables. Check http://www.mysql.com/doc/T/a/Table_maintenance.html for more
information.
Given that, I would expect the person maintaining the database would take
it off line.
The sort is handled by the way in which you use ORDER BY in your SELECT
statement, so it doesn't affect the underlying table structure. MySQL
is thread-safe, so different users can execute SELECT and UPDATE's
simultaneously. A SELECT wouldn't affect an UPDATE.
In terms of timeliness of UPDATEs and SELECTs, that's almost a non-issue as
one cannot know in advance what will be updated or inserted.
Regards - Miles Thompson
At 10:22 AM 1/25/2002 -0500, Phil Schwarzmann wrote:
So let's say Bill is accessing a MySQL table and is about to UPDATE some
information on a particular row. Meanwhile, Al is doing a sort on that
same table.
Couldn't Al's sorting possibly screw up Bill's updating?? Or does
MySQL have some built in functions that prevent this?
Thanks!
Phil
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