Timed Quiz Challenge

Data abstraction is the process of hiding the complex details and showing only the essential features of the object. An instance is a specific realization of any object. Two advantages of DBMS are data integration and data security. Normalization is the process of organizing the data in a database efficiently. Its types include 1NF, 2NF, 3NF, and BCNF. Syntax for creating a table: CREATE TABLE table_name (column1 datatype, column2 datatype, ...); Syntax for renaming a table: RENAME old_table_name TO new_table_name. Arithmetic SQL operators include +, -, *, /, %, and logical operators include AND, OR, NOT. Syntax for creating a view: CREATE VIEW view_name AS SELECT column1, column2 FROM table_name WHERE condition; Syntax for dropping a view: DROP VIEW view_name;. Two advantages of PL/SQL are procedural language capabilities and seamless SQL integration.

The three-level architecture of a database system consists of an external level, a conceptual level, and an internal level. The external level allows users to access data without needing to know the details of the internal storage. The conceptual level provides a logical view of the entire database. The internal level deals with the physical storage of the database. Each level is designed to provide a different perspective and abstraction of the data to the users and the database administrator.

CREATE TABLE student (student_id INT, student_name VARCHAR(50), date_of_birth DATE, gender CHAR(1), course_id INT);

<p>The term 'seat number' refers to the unique identifier assigned to a candidate in an examination. In the given context, the seat number 's332' is significant as it is used to uniquely identify a specific candidate's examination papers and results. It helps in organizing and tracking the examination materials and ensuring the integrity of the assessment process.</p> Signup and view all the answers

<p>Permissible: Non-programmable Electronic Pocket Calculator. Not permissible: Mobile Phone, Pager, and any other Electronic Communication devices.</p> Signup and view all the answers