D Web portal contains a list of the MySQL, Oracle and PostgreSQL database error codes. The code can be found with its description in many localizations and compared its existence through different versions of the database.
Database error codes
Elnec is the eshop that sells programmable circuits, microprocessors and flash memory. The portal offers products including detailed descriptions, images and technical documentation. Products can be ordered through the shopping cart and pay by card via online payment gateway.
Mailing system is the web service similar to MailChimp used for mass sending of personalized newsletters of companies. The system supports the management of the entire life cycle from preparation the newsletter to its delivery. Results (sent, delivered, opened, unsubscribed and bounced counts) can be than exported from the system.