Database Redesign How many copies of the database schema are typically used in the redesign process? One Four Three Two One Four Three Two ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A tool that can help designers understand the dependencies of database structures is a: None of these graphical display. data model. dependency graph. None of these graphical display. data model. dependency graph. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Changing cardinalities in a database is: a database design task that never occurs. a common database design task. 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 database design task that never occurs. a common database design task. 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. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Information systems and organizations do not just influence each other; they create each other. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The EXISTS keyword will be true if: both of these two conditions are met. any row in the subquery meets the condition only. all rows in the subquery fail the condition only. neither of these two conditions is met. both of these two conditions are met. any row in the subquery meets the condition only. all rows in the subquery fail the condition only. neither of these two conditions is met. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign How can you find rows that do not match some specified condition? None of these Double use of NOT EXISTS NOT EXISTS EXISTS None of these Double use of NOT EXISTS NOT EXISTS EXISTS ANSWER DOWNLOAD EXAMIANS APP
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