Database Redesign The data model produced from the reverse engineering process is a true logical model. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign If a database is built correctly the first time, it will not have to be redesigned. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Changing cardinalities in a database is: a database design task that never occurs. is impossible to do, so a new database must be constructed and the data moved into it. a rare database design task, but does occur. a common database design task. a database design task that never occurs. is impossible to do, so a new database must be constructed and the data moved into it. a rare database design task, but does occur. a common database design task. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which of the following SQL statements are helpful in database redesign? Correlated subqueries only Both of the above are helpful None of these EXISTS/NOT EXISTS expressions only Correlated subqueries only Both of the above are helpful None of these EXISTS/NOT EXISTS expressions only ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The NOT EXISTS keyword will be true if any row in the subquery meets the condition. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign It is not easy to build a database correctly the first time. False True False True ANSWER DOWNLOAD EXAMIANS APP
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