Database Systems: Principles, Design, and Implementation

allows applications assigned B+ tree binary candidate key CLASS CLID client column command constraints contains COURSE create CREDITS data dictionary data items database management system Database Systems DBMS deletion dependent segments DEPT DEPTNAME disk domain E-R diagram EMPID employee EMPNAME entity set example FACID FACNAME faculty member FIELD FIELD FIELD foreign key functional dependencies GRADE hierarchical identify insert join key values lock logical MAJOR mapping Math 36 multivalued dependencies node normal form objects operations owner PAYROLL performed physical pointers primary key processing PROJ query record type relational algebra relational model relationship set represented request result retrieved SCHED schema segment SELECT semantic shown in Figure shows specify storage stored STUDENT record STUID STUNAME superkey track transaction tree tuples TYPE=C update VSAM weak entity WORKER write ކ ކ