(A) HAVING
(B) ALTER
(C) SELECT
(D) THEN
Tag: DBMS Mcqs
Which of the following is INCORRECT about VIEWS?
(A) It is not possible to left out the data which is not required for a specific view
(B) A database view displays one or more database records on the same page
(C) Views can be used as security mechanisms
(D) Views are generally used to focus the perception each user has of the database
Which of the following is not one of the properties of Transaction?
(A) Atomicity
(B) Consistency
(C) Redundancy
(D) Durability
Suppose there are 8 rows and 4 columns in TABLE1 and 3 rows and 4 coulmns in TABLE2; what is the size of the cartesian product incase of CROSS JOIN between these two tables?
(A) 12
(B) 16
(C) 24
(D) 32
Which of the following is the correct way to find out the size of cartesian product incase of CROSS JOIN?
(A) The number of columns in the first table multiplied by the number of columns in the second table
(B) The number of columns in the first table multiplied by the number of rows in the second table
(C) The number of rows in the first table multiplied by the number of columns in the first table
(D) The number of rows in the first table multiplied by the number of rows in the second table
Which of the following is true about TRUNCATE?
(A) Can be Rolled back
(B) Activates Triggers
(C) is DML Command
(D) Resets identity of the table
Which of the following statements is true about the views?
(A) View is always a complete set of all the tables in a database
(B) The results of using a view are not permanently stored in the database
(C) View can not be used for retrieving data
(D) Rows can not be updated or deleted in the view
Which feature of database provides conversion from inconsistent state of DB to a consistent state ensuring minimum data loss?
(A) User accessible catalog
(B) Data processing
(C) Authorization service
(D) Recovery service