Database Redesign Which of the following modifications may not succeed? Both of the above actions should succeed Changing a column data type from numeric to char Changing a column data type from char to date Neither of the above actions will succeed Both of the above actions should succeed Changing a column data type from numeric to char Changing a column data type from char to date Neither of the above actions will succeed ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which is not true of a correlated subquery? The processing of the SELECT statements is nested. They can be used to verify functional dependencies. EXISTS/NOT EXISTS is a form of a correlated subquery. They are very similar to a regular subquery. The processing of the SELECT statements is nested. They can be used to verify functional dependencies. EXISTS/NOT EXISTS is a form of a correlated subquery. They are very similar to a regular subquery. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Database redesign is not terribly difficult if the: database has no data. database is structured. database is relatively small. database is well-designed. database has no data. database is structured. database is relatively small. database is well-designed. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The data model that is produced from reverse engineering is: a conceptual model. a logical model. None of these an internal model. a conceptual model. a logical model. None of these an internal model. 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 tool that can help designers understand the dependencies of database structures is a: data model. dependency graph. graphical display. None of these data model. dependency graph. graphical display. None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS