RDBMSes relational database management system RDBMSes relational database management system (RDBMS) RDBMS RDBMS relational databases relational database management system RDBMS RDBMS relational database RDBMS relational database management system RDBMS relational database management system (RDBMS) relational database management system relational database management system (RDBMS) RDBMS relational database management system (RDBMS) relationship database management systems relational database management system RDBMS relational database-management systems (RDBMS) RDBMS relational database management system RDBMS Relational Database Management System RDBMS relational database management system relational database management system RDBMS relational database management system (RDBMS) RDBMS relational database management system relational database management system RDBMS relational database system RDBMS relational database management systems A relational database management system RDBMS traditional relational database management systems RDBMS RDBMS relational database-management systems (RDBMS) Structured Query Language