Database Redesign Dependency graphs are diagrams that consist of nodes and arcs that show the dependencies of a database. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Typically, there should be at least two different copies of the database schema used in the redesign process. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which of the following modifications may not succeed? Neither of the above actions will succeed Changing a column data type from char to date Changing a column data type from numeric to char Both of the above actions should succeed Neither of the above actions will succeed Changing a column data type from char to date Changing a column data type from numeric to char Both of the above actions should succeed ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The data model produced from the reverse engineering process does not include intersection table data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Database redesign is especially difficult if the database has no data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign How can you find rows that do not match some specified condition? Double use of NOT EXISTS None of these EXISTS NOT EXISTS Double use of NOT EXISTS None of these EXISTS NOT EXISTS ANSWER DOWNLOAD EXAMIANS APP
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