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. They are very similar to a regular subquery. EXISTS/NOT EXISTS is a form of a correlated subquery. The processing of the SELECT statements is nested. They can be used to verify functional dependencies. They are very similar to a regular subquery. EXISTS/NOT EXISTS is a form of a correlated subquery. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The NOT EXISTS keyword will be true if: any row in the subquery meets the condition. all rows in the subquery fail the condition. neither of these two conditions is met. both of these two conditions are met. any row in the subquery meets the condition. all rows in the subquery fail the condition. neither of these two conditions is met. both of these two conditions are met. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which SQL-92 standard SQL command can be used to change a table name? ALTER TABLE CHANGE TABLE None of these RENAME TABLE ALTER TABLE CHANGE TABLE None of these RENAME TABLE ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A tool that can help designers understand the dependencies of database structures is a: graphical display. data model. dependency graph. None of these graphical display. data model. dependency graph. None of these ANSWER DOWNLOAD EXAMIANS APP
Database Redesign How many copies of the database schema are typically used in the redesign process? Four Two One Three Four Two One Three ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The data model that is produced from reverse engineering is: None of these a conceptual model. a logical model. an internal model. None of these a conceptual model. a logical model. an internal model. ANSWER DOWNLOAD EXAMIANS APP
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