C/C++, Object Pascal, Delphi, Visual Basic, PHP, SQL, PL/SQL, JavaScript.
Microsoft Visual Studio.NET, Borland Delphi, Embarcadero ER/Studio, Microsoft Visual Source Safe, CVS.
Windows API, .NET Framework, COM, MFC, ADO, OLEDB, ODBC, OCI, XML, HTML, WML
Oracle, Microsoft Access, MySQL, Paradox, dBase.