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Q9: A database is said to be shared
Q14: _ _ refers to the use of
Q17: To perform a difference operation on two
Q25: In the early DBMSs,there was not a
Q36: A(n)_ is an operator that includes in
Q42: A relationship in which a foreign key
Q50: The external schema of a database represents
Q57: The last value of Cname shown by
Q64: Penelope is sitting in a small circle
Q72: Indexing on a column or group of