Introduction to Database System If attribute A determines both attributes B and C, then it is also true that: B → (B,C) → C → A → B → (B,C) → C → A → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command(s) is(are) used to redefine a column of the table in SQL ? ALTER TABLE MODIFY TABLE DEFINE TABLE all of the listed here ALTER TABLE MODIFY TABLE DEFINE TABLE all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Characteristic(s) of a distributed MIS structure is None of these computers supporting local DP operations a multiprocessing environment All of these interactive sharing of the workload None of these computers supporting local DP operations a multiprocessing environment All of these interactive sharing of the workload ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database are written in English All of these can use aggregate functions like SUM and COUNT None of these both (a) and (b) are written in English All of these can use aggregate functions like SUM and COUNT None of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Embedded pointer provide a physical record key None of these an inverted index a secondary access path All of these a physical record key None of these an inverted index a secondary access path All of these ANSWER DOWNLOAD EXAMIANS APP
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