Database Redesign A correlated subquery is processed as a nested subquery. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The data model produced from the reverse engineering process does not include intersection table data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Before any changes to database structure are attempted one should first: clearly understand the current structure and contents of the database only. test any changes on a test database only. All of these create a complete backup of the operational database only. clearly understand the current structure and contents of the database only. test any changes on a test database only. All of these create a complete backup of the operational database only. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which is not true of a correlated subquery? EXISTS/NOT EXISTS is a form of a correlated subquery. They can be used to verify functional dependencies. They are very similar to a regular subquery. The processing of the SELECT statements is nested. EXISTS/NOT EXISTS is a form of a correlated subquery. They can be used to verify functional dependencies. They are very similar to a regular subquery. The processing of the SELECT statements is nested. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign How many copies of the database schema are typically used in the redesign process? Three Two Four One Three Two Four One ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign. skeptical optimistic ambivalent None of these skeptical optimistic ambivalent None of these ANSWER DOWNLOAD EXAMIANS APP
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