Database Redesign How many copies of the database schema are typically used in the redesign process? Three Four One Two Three Four One Two ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which SQL-92 standard SQL command can be used to change a table name? None of these ALTER TABLE CHANGE TABLE RENAME TABLE None of these ALTER TABLE CHANGE TABLE RENAME TABLE ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The data model produced from the reverse engineering process does not include intersection table data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Before any changes to database structure are attempted one should first: clearly understand the current structure and contents of the database only. All of these test any changes on a test database only. create a complete backup of the operational database only. clearly understand the current structure and contents of the database only. All of these test any changes on a test database only. create a complete backup of the operational database only. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The NOT EXISTS keyword will be true if: 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. any row in the subquery meets the condition. all rows in the subquery fail the condition. neither of these two conditions is met. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Although creating test databases is a critical and necessary job, there are few career opportunities in this area. False True False True ANSWER DOWNLOAD EXAMIANS APP
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