Database Redesign To drop a column that is used as a foreign key, first: drop the foreign key constraint. All of these drop the table containing the foreign key. drop the primary key. drop the foreign key constraint. All of these drop the table containing the foreign key. drop the primary key. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which is not true of a correlated subquery? They are very similar to a regular subquery. EXISTS/NOT EXISTS is a form of a correlated subquery. They can be used to verify functional dependencies. The processing of the SELECT statements is nested. They are very similar to a regular subquery. EXISTS/NOT EXISTS is a form of a correlated subquery. They can be used to verify functional dependencies. The processing of the SELECT statements is nested. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The EXISTS keyword will be true if any row in the subquery meets the condition. 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Changing cardinalities in a database is: a common database design task. is impossible to do, so a new database must be constructed and the data moved into it. a database design task that never occurs. a rare database design task, but does occur. a common database design task. is impossible to do, so a new database must be constructed and the data moved into it. a database design task that never occurs. a rare database design task, but does occur. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The process of reading a database schema and producing a data model from that schema is known as: None of these reverse engineering. data modeling. database design. None of these reverse engineering. data modeling. database design. ANSWER DOWNLOAD EXAMIANS APP
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