Database Redesign How can you find rows that do not match some specified condition? None of these Double use of NOT EXISTS NOT EXISTS EXISTS None of these Double use of NOT EXISTS NOT EXISTS EXISTS ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A regular subquery can be processed: by nesting. from the top down. None of these from the bottom up. by nesting. from the top down. None of these from the bottom up. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which of the following SQL statements are helpful in database redesign? None of these Correlated subqueries only EXISTS/NOT EXISTS expressions only Both of the above are helpful None of these Correlated subqueries only EXISTS/NOT EXISTS expressions only Both of the above are helpful ANSWER DOWNLOAD EXAMIANS APP
Database Redesign How many copies of the database schema are typically used in the redesign process? Two Three One Four Two Three One Four ANSWER DOWNLOAD EXAMIANS APP
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 What SQL command can be used to delete columns from a table? ALTER TABLE TableName DROP ColumnName MODIFY TABLE TableName DROP COLUMN ColumnName ALTER TABLE TableName DROP COLUMN ColumnName MODIFY TABLE TableName DROP ColumnName ALTER TABLE TableName DROP ColumnName MODIFY TABLE TableName DROP COLUMN ColumnName ALTER TABLE TableName DROP COLUMN ColumnName MODIFY TABLE TableName DROP ColumnName ANSWER DOWNLOAD EXAMIANS APP
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