Introduction to Database System In a relation, the order of the columns does not matter. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for reducing storage space requirements All of these None of these protecting data in data communication systems improving data integrity reducing storage space requirements All of these None of these protecting data in data communication systems improving data integrity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that: A → (B,C). A → A → (B,C) → A → (B,C). A → A → (B,C) → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sort/report generators do not need to sort before generating a report are faster than index/report generators none of the listed here require more disk space than index/report generators do not need to sort before generating a report are faster than index/report generators none of the listed here require more disk space than index/report generators ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The data-base environment has all of the following components except: data base data-base administrator users None of these separate files data base data-base administrator users None of these separate files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation establishes an index for a file sorts file using two keys None of the listed here sorts a file using a single key establishes an index for a file sorts file using two keys None of the listed here sorts a file using a single key ANSWER DOWNLOAD EXAMIANS APP
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