Start skype on login in Ubuntu

See this post:

http://www.addictivetips.com/ubuntu-linux-tips/run-any-program-during-system-startup-in-ubuntu-linux/

And use System -> Preferences -> Startup Applications

Enter "/usr/bin/skype" (or use "which skype" to find the location of skype).

Learning pg

SHOW TABLES is

SELECT table_schema, table_name FROM information_schema.tables ;

SHOW DATABASES is

SELECT table_schema, COUNT(*) AS num_tables FROM information_schema.tables

GROUP BY table_schema;

use /? to find out how to do it properly.