RE: Basic index questions

2002-05-29 Thread Roger Baklund
* Andy Cheng > I am trying to learn about indexing and have a few questions. > > 1. Does index only apply to query that use = operator in the where clause? No. > 2. Does operators such as >, like and between will result to full table > scan? No. LIKE "%whatever%" will not use the index, but LIK

Re: Basic index questions

2001-11-14 Thread Jeremy Zawodny
On Tue, Nov 13, 2001 at 11:03:00PM -0600, Christian Stromberger wrote: > > I understand that an index is used to "speed stuff up", but am foggy > on the details. You might find this helpful: http://www.linux-mag.com/2001-06/mysql_01.html > Eg, let's say I have an "authors" table with fname, mna

Re: Basic index questions

2001-11-14 Thread jim barchuk
Hi Chris! > I understand that an index is used to "speed stuff up", but am foggy on the > details. Ayup. one of the beauties of MySQL/RDBMS is that -you- don't really need to know or -do- much except declare the index. :) > I assume I set up the index like so in the create table: > ... > unique