Database Redesign To drop a column that is used as a foreign key, first: drop the table containing the foreign key. drop the primary key. All of these drop the foreign key constraint. drop the table containing the foreign key. drop the primary key. All of these drop the foreign key constraint. ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which SQL-92 standard SQL command can be used to change a table name? CHANGE TABLE ALTER TABLE None of these RENAME TABLE CHANGE TABLE ALTER TABLE None of these RENAME TABLE ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Which of the following SQL statements are helpful in database redesign? None of these EXISTS/NOT EXISTS expressions only Both of the above are helpful Correlated subqueries only None of these EXISTS/NOT EXISTS expressions only Both of the above are helpful Correlated subqueries only ANSWER DOWNLOAD EXAMIANS APP
Database Redesign Adding null columns to a table is straightforward. True False True False ANSWER DOWNLOAD EXAMIANS APP
Database Redesign A correlated subquery is processed as a nested subquery. False True False True ANSWER DOWNLOAD EXAMIANS APP
Database Redesign The SQL-92 command to change a table name is RENAME TABLE. True False True False ANSWER DOWNLOAD EXAMIANS APP
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