I started up with Commodore 64 BASIC in 1991, after being taught the basics of BASIC with GW-BASIC. 3 years later, after a 2 year break from programming, I graduated to QBASIC. Another 3 years later, I discovered Turbo Basic which was fast enough for game programming though less advanced than Qbasic.
Then I stumbled upon C through a friend and wrote some games with it (notably, a beautiful bricks game which actually worked on an 8086 computer after some optimization. Then I taught myself Visual Basic 5.0, thanks to pirated software. After another 4 year break, I started coding with C++ on Linux in order not to be a software pirate.
Update: I also learned some Java, PostgreSQL and FORTRAN during this period at Ile-Ife.
Later, after I left for Abeokuta to focus on the web, I started learning PHP and MySQL, which I use on all my sites, modifying queries and scripts to suit my purposes. I even wrote a MySQL 4.0 certification exam. Later I learnt to use python for an SMS site, but I couldn't get the business off the ground due to lack of capital to buy SMS credits.
So in answer to the main question, I've used BASIC, C, Visual Basic, C++, SQL, PHP, and Python. What about you?