MySql - WAMP - Huge Table is very slow (20 million rows)

Question

So I posted this! yesterday and got a perfect answer, which required running this code first: ALTER TABLE mytable AUTO_INCREMENT=10000001;

I ran it several times, but r

Answer 1

I believe the hardware is fine but you need to spare your resources a lot better.

Db structure optimization!

• Do not use TEXT!
• For phonenumbers use bigint unsigned. Any signs or alpha must be parsed and converted.
• For any other alpha-numeric column use eg varchar([32-256]).
• Zip-code is of course mediumint unsigned.
• Gender should be enum('Male','Female')
• Sales could be an int unsigned
• State should be enum('Alaska',...)
• Country should be enum('Albania',...)

When building a large index the fastest way is to create a new table and do INSERT INTO ... SELECT FROM ... rather then ALTER TABLE ....

Changing the State and Country fields to enum will drastically reduce you indexes size.