Programming <Back to Services Back-end, or server-side programming, allows a site to be more interactive. Whether you need an online survey, a shopping cart, a simple database, or a high-volume database, Interteq is your is your one-stop web development source. PERL/CGI Programming PERL is a computer language used to create an interface (CGI) between website visitors and data you wish to collect / tasks you want performed. PERL/SQL PERL and SQL are a match made in heaven. SQL is used for high volume database-driven websites. E-Commerce The most cost effective method for e-commerce is an off-the-shelf shopping cart package. We will select and configure a shopping cart to match your website needs, or for special cases, create a custom shopping cart from scratch.