Programming since about 1982, back then in Pascal on Commodore PCs. First part-time jobs as a university student in the late 1980s programming dBASE II on PCs running DOS, then Turbo Pascal on the same vintage PCs. In the first full-time job programming Cobol on MVS mainframes under TSO with SQL on IBM DB2 databases and JCL for job control. In the following 25 years programming a diverse mix of languages: C, Lisp, Tcl, Java, Python as well as web programming with HTML, CSS, XML, JavaScript, PHP. Now mainly working with SQL in PostgreSQL, Python and occasionally some Go.