Database Redesign The EXISTS keyword will be true if: both of these two conditions are met. neither of these two conditions is met. any row in the subquery meets the condition only. all rows in the subquery fail the condition only. both of these two conditions are met. neither of these two conditions is met. any row in the subquery meets the condition only. all rows in the subquery fail the condition only. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Changing cardinalities in a database is: 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. a database design task that never occurs. is impossible to do, so a new database must be constructed and the data moved into it. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The NOT EXISTS keyword will be true if: all rows in the subquery fail the condition. neither of these two conditions is met. both of these two conditions are met. any row in the subquery meets the condition. all rows in the subquery fail the condition. neither of these two conditions is met. both of these two conditions are met. any row in the subquery meets the condition. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The data model that is produced from reverse engineering is: a conceptual model. None of these an internal model. a logical model. a conceptual model. None of these an internal model. a logical model. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign To drop a column that is used as a foreign key, first: drop the primary key. All of these drop the table containing the foreign key. drop the foreign key constraint. drop the primary key. All of these drop the table containing the foreign key. drop the foreign key constraint. ANSWER DOWNLOAD EXAMIANS APP
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