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 Before any changes to database structure are attempted one should first: create a complete backup of the operational database only. test any changes on a test database only. All of these clearly understand the current structure and contents of the database only. create a complete backup of the operational database only. test any changes on a test database only. All of these clearly understand the current structure and contents of the database only. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A regular subquery is processed from the bottom up. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The EXISTS keyword will be true if: neither of these two conditions is met. both of these two conditions are met. all rows in the subquery fail the condition only. any row in the subquery meets the condition only. neither of these two conditions is met. both of these two conditions are met. all rows in the subquery fail the condition only. any row in the subquery meets the condition only. 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. optimistic ambivalent skeptical None of these optimistic ambivalent skeptical None of these ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Because of the need for extensive knowledge of SQL, many database developers choose to automate the redesign process. True False True False ANSWER DOWNLOAD EXAMIANS APP
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