Database Redesign The use of the double NOT EXISTS can be used to find rows that do not match some specified condition. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The process of reading a database schema and producing a data model from that schema is known as: database design. reverse engineering. None of these data modeling. database design. reverse engineering. None of these data modeling. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign What SQL command can be used to delete columns from a table? MODIFY TABLE TableName DROP ColumnName MODIFY TABLE TableName DROP COLUMN ColumnName ALTER TABLE TableName DROP ColumnName ALTER TABLE TableName DROP COLUMN ColumnName MODIFY TABLE TableName DROP ColumnName MODIFY TABLE TableName DROP COLUMN ColumnName ALTER TABLE TableName DROP ColumnName ALTER TABLE TableName DROP COLUMN ColumnName ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A tool that can help designers understand the dependencies of database structures is a: dependency graph. None of these data model. graphical display. dependency graph. None of these data model. graphical display. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign To drop a column that is used as a foreign key, first: All of these drop the primary key. drop the foreign key constraint. drop the table containing the foreign key. All of these drop the primary key. drop the foreign key constraint. drop the table containing the foreign key. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Database redesign is not terribly difficult if the: database is structured. database is relatively small. database has no data. database is well-designed. database is structured. database is relatively small. database has no data. database is well-designed. ANSWER DOWNLOAD EXAMIANS APP
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