Monday, June 04, 2012

Install a network printer from Ubuntu 12.04 with Gnome Shell

If you try to install a network printer from Ubuntu 12.04 with Gnome shell, you will probably have an error message like "Firewalld is not started". There is a workaround you can use. Press Alt+F2 and type system-config-printer.

Avoid select min/max with Oracle

I hate select max clauses with Oracle. My company used to write subqueries which such expressions. It's slow and unreadable. Conditions ...