I created a table where I want to have two columns with dates. The first will be the date the record in the table is created. The other should be a week later. The table is for a contact management system where I'm going to keep information about when I emailed a contact and when I should follow up a week later.
In Postgres this turned out to be very easy. Look at the following table definition. You can easily create a date 7 days from now by adding "interval '7 days'" to now();
Just made a favicon.ico in a matter of minutes.
Yqd is a command line tool for downloading historical price information from Yahoo. It accepts a group of symbols on the command line or from a file and downloads each symbols historical data to a CSV file. Yqd is useful for end of day scripts to download price information regularly.