Abstraction of the database can be viewed as
(a) two levels
(b) four levels
(c) three levels
(d) one level
1 Answers
Talk Doctor Online in Bissoy App
Who viewed that blacks were a separate nation, and should fight for the independence from the white rule?
Correct option is D) MalcomX
2 Answers 1 views
A result set is extracted from the database using the cursor object (that has been already created) by giving the following statement.
(a) One record (b) tuple
2 Answers 1 views
(i) Which command is used to view the list of tables in a database?
(i) SHOW TABLES: (ii) Equi- join: The join in which columns from two tables are compared for equality Duplicate columns are shown Natural Join The join in which only one of the identical columns...
2 Answers 1 views
(i) A table, ITEM has been created in a database with the following fields: ITEMCODE, ITEMNAME, QTY, PRICE
(i) ALTER TABLE Item ADD (Discount INT); (ii ) DDL: DROP TABLE, ALTER TABLE DML: INSERT INTO, UPDATE. ..SET
2 Answers 1 views
Aryan, a database administrator, has grouped records of a table with the help of group by clause.
Having clause is used to further filter those groups of records which will be generated through group by clause. For example: Select max(marks) from student group by classes having classes in (10,12); Above...
2 Answers 6 views
Which of the following is not an OOP concept? (a) Overloading (b) procedural programming (c) data abstraction
(b) Procedural programming
2 Answers 1 views
Choose the level of database abstraction that describes what data is stored in the database and what relationships exist among them,
Correct answer is (b) Logical
2 Answers 1 views
The programmers are connected with ......... level of abstraction.
Logical level
2 Answers 1 views
In the abstraction of a database system the external level is the
(d) view level
2 Answers 1 views
How do abstraction and encapsulation complement each other?
Abstraction and Encapsulation are complementary concepts. Through encapsulation only we are able to enclose the components of the object into a single unit and separate the private and public members....
2 Answers 1 views