End Point Team

Our team, headquartered in New York City, has developed, maintained, and hosted ecommerce and other web solutions since its founding in 1995. We combine web application development, database and hosting expertise with understanding clients’ objectives to excel in client satisfaction.

David Christensen

David Christensen

Cross-platform developer

With End Point since: 2006
Location: Lawrence, Kansas (Kansas City/Topeka area)

David has substantial experience and a broad skill set ranging from systems integration to Perl programming and complex database designs. He enjoys finding quick, elegant solutions to unique and complex problems. Specific interests include the Perl DBI, LAMP (the Linux, Apache, mod_perl and Postgres wattage), Ajax/JavaScript, and Catalyst.

Computer Programmer for Center of Educational Testing and Evaluation, Unversity of Kansas from 2001–2005. Built and managed online portal giving school districts across Kansas access to their scores and data on state-administered standardized tests.

BS, Mathematics, University of Kansas, Lawrence, 2001.

David enjoys spending time with his wife and three beautiful children, playing guitar, drawing, and learning esoteric programming languages.

Recent Blog Posts By David Christensen

Byte-swap an entire file using perl

April 20, 2012

I recently needed to byte-swap an input file, and came up with an easy way with perl: $ perl -0777ne 'print pack(q{V*},unpack(q{N*},$_))' inputfile > outputfile This will byte-swap 4-byte sequence... (Byte-swap an entire file using perl cont.)

PG West 2011 Re-cap

October 7, 2011

I just recently got back from PG West 2011, and have had some time to ruminate on the experience (do elephants chew a cud?</note-to-self>). I definitely enjoyed San Jose as the location; it's al... (PG West 2011 Re-cap cont.)

Headed out to PgWest next week

September 20, 2011

I'm gearing up to go out to San Jose to attend and speak at the PG West PostgreSQL conference in sunny San Jose. (Does anyone have directions...?) I'm excited to again meet and mingle with more Postg... (Headed out to PgWest next week cont.)

Remove specific CGI variables using Apache

August 10, 2011

Sometime you need to remove a single CGI variable from a query string in your published URLs; for instance, one of our client's site had gotten spidered with a session id in the generated links, so we ... (Remove specific CGI variables using Apache cont.)

Announcing pg_blockinfo!

July 14, 2011

I'm pleased to announce the initial release of pg_blockinfo. It is a tool to examine your PostgreSQL heap data files, written in Perl. Similar in purpose to pg_filedump, it is used to display (and soo... (Announcing pg_blockinfo! cont.)