DBMS is a collection of .............. that enables user to create and maintain a database.

The process of reading a database schema and producing a data model from that schema is known as:

• [A] data modeling.
• [B] database design.
• [C] reverse engineering.
• [D] None of the above is correct.

In RDBMS, Data is presented as a collection of ............

• [A] Relation
• [B] Table
• [C] Attribute
• [D] Entity

..............defines the structure of a relation which consists of a fixed set of attribute-domain pairs.

• [A] Schema
• [B] Program
• [C] Instance
• [D] none

The overall design of a database is called?

• [A] Scheme of the database
• [B] The screen of database
• [C] Structure of the database
• [D] View of the database

What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?

• [A] ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0);
• [B] ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade > 0);
• [C] ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0);
• [D] None of the above is correct.