SQL for Database Construction What is an advantage of placing computations in SQL views? To ensure that the results are consistent. None of these To save users from having to write an expression. To accomplish both of the above. To ensure that the results are consistent. None of these To save users from having to write an expression. To accomplish both of the above. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction Which of the following is an SQL trigger supported by Oracle? INSTEAD OF All of these BEFORE AFTER INSTEAD OF All of these BEFORE AFTER ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction A reason for using an SQL view to hide columns is: to accomplish both of the above. to simplify a result only. to prevent the display of sensitive data only. None of these to accomplish both of the above. to simplify a result only. to prevent the display of sensitive data only. None of these ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction The DROP TABLE statement: deletes the table structure along with the table data. is not an SQL statement. works whether or not referential integrity constraints would be violated. deletes the table structure only. deletes the table structure along with the table data. is not an SQL statement. works whether or not referential integrity constraints would be violated. deletes the table structure only. ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction What SQL structure is used to limit column values of a table? The VALUE constraint The CHECK constraint None of these The LIMIT constraint The VALUE constraint The CHECK constraint None of these The LIMIT constraint ANSWER DOWNLOAD EXAMIANS APP
SQL for Database Construction What is an SQL virtual table that is constructed from other tables? A view Just another table Query results A relation A view Just another table Query results A relation ANSWER DOWNLOAD EXAMIANS APP
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