Relational databases 15 Database management 7 Database design 6 Design 2 Management 2 Object-oriented databases 2 Case studies 1 Comparative studies 1 Computer programs 1 Data protection 1 Data recovery (Computer science) 1 Deductive databases 1 Fuzzy sets 1 Information resources management 1 Information technology 1 Management information systems 1 Object-oriented programming (Computer science) 1 Programming languages (Electronic computers) 1 Reliability 1 Transaction systems (Computer systems) 1 Visual programming (Computer science) 1 Visual programming languages (Computer science) 1 XML (Document markup language) 1