SQL for Database Construction The DROP TABLE statement: deletes the table structure only. deletes the table structure along with the table data. works whether or not referential integrity constraints would be violated. is not an SQL statement. deletes the table structure only. deletes the table structure along with the table data. works whether or not referential integrity constraints would be violated. is not an SQL statement. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction For what purposes are views used? To hide columns only To hide complicated SQL statements only To hide rows only All of these To hide columns only To hide complicated SQL statements only To hide rows only All of these ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction What is an advantage of placing computations in SQL views? None of these To ensure that the results are consistent. To accomplish both of the above. To save users from having to write an expression. None of these To ensure that the results are consistent. To accomplish both of the above. To save users from having to write an expression. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction The SQL ALTER statement can be used to: delete rows from the table. change the table data. change the table structure. add rows to the table. delete rows from the table. change the table data. change the table structure. add rows to the table. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction When a foreign key column is created without a corresponding foreign key constraint, we have created a "casual relationship" between the two tables. False True False True ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction There are three SQL data modification operations: insert, modify and delete. True False True False ANSWER DOWNLOAD EXAMIANS APP
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