Database Redesign Which of the following modifications may not succeed? Changing a column data type from char to date Both of the above actions should succeed Neither of the above actions will succeed Changing a column data type from numeric to char Changing a column data type from char to date Both of the above actions should succeed Neither of the above actions will succeed Changing a column data type from numeric to char ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Reverse engineering is the process of reading a database schema and producing a data model from that schema. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The NOT EXISTS keyword will be true if any row in the subquery meets the condition. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A regular subquery can be processed: from the top down. None of these from the bottom up. by nesting. from the top down. None of these from the bottom up. by nesting. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A tool that can help designers understand the dependencies of database structures is a: None of these dependency graph. graphical display. data model. None of these dependency graph. graphical display. data model. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign. optimistic None of these ambivalent skeptical optimistic None of these ambivalent skeptical ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS