A(n) ____ frees programmers who write database access programs from having to engage in mundane data manipulation activities,such as adding new data and deleting existing data.
A) E-R diagram
B) DBA
C) entity
D) DBMS
Correct Answer:
Verified
Q20: An entity is also defined as an
Q21: _ are screen objects used to maintain,view,and
Q22: In an E-R diagram,_ represent entities.
Q23: During the _ process,a database expert determines
Q24: Unlike a typical data file,a database can
Q26: In an E-R diagram,the _ at the
Q27: A good _ should provide an opportunity
Q28: In a(n)_ relationship between two entities,each occurrence
Q29: _ is the prevention of unauthorized access
Q30: In an E-R diagram,_ represent relationships between
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