Database Redesign The SQL-92 command to change a table name is RENAME TABLE. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which is not true of a correlated subquery? 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. The processing of the SELECT statements is nested. They can be used to verify functional dependencies. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The NOT EXISTS keyword will be true if: neither of these two conditions is met. all rows in the subquery fail the condition. any row in the subquery meets the condition. both of these two conditions are met. neither of these two conditions is met. all rows in the subquery fail the condition. any row in the subquery meets the condition. both of these two conditions are met. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Before any changes to database structure are attempted one should first: test any changes on a test database only. clearly understand the current structure and contents of the database only. All of these create a complete backup of the operational database only. test any changes on a test database only. clearly understand the current structure and contents of the database only. All of these create a complete backup of the operational database only. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign How many copies of the database schema are typically used in the redesign process? Three One Four Two Three One Four Two ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Reverse engineering is the process of reading a database schema and producing a data model from that schema. True False True False ANSWER DOWNLOAD EXAMIANS APP
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