Database Redesign The use of the double NOT EXISTS can be used to find rows that do not match some specified condition. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The data model produced from the reverse engineering process is a true logical model. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A correlated subquery is processed as a nested subquery. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which of the following modifications may not succeed? Neither of the above actions will succeed Both of the above actions should succeed Changing a column data type from char to date Changing a column data type from numeric to char Neither of the above actions will succeed Both of the above actions should succeed Changing a column data type from char to date Changing a column data type from numeric to char ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The NOT EXISTS keyword will be true if any row in the subquery meets the condition. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Changing cardinalities in a database is: 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. 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. ANSWER DOWNLOAD EXAMIANS APP
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