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Class 12 – Information Technology [Code 802]Unit 1 – Database Concepts Question Bank Based on CBSE Sample Question Paper from 2018-2022 Que 1. The number of attributes in a relation is called the ____________of a relation. [CBSE SQP] a. Tuple b. Table c. Cardinality d. Degree Answer: Degree Que 2. In order to …
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Unit 3 – Fundamentals of Java Programming XII Information Technology 802 NCERT Book Exercise Solution Q1. What is Java Bytecode? Answer: Bytecode is a java compiled code, which translated by java compiler from java source code to java bytecode. Java Bytecode is a highly optimized set of instructions. Bytecode is also known as Java class …
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Unit 1 – Database Concepts NCERT Book Exercise Solution Que 1. Consider the following Employee table: The primary key of this table is Employee_ID and Manager_ID is a foreign key that referencesEmployee_ID. Write SQL commands for the following: (a) Create the above table Answer: CREATE TABLE Employee (Employee_ID integer PRIMARY KEY,Employee_Name VARCHAR(30),Job_Title VARCHAR(25),Salary DECIMAL(10),Bonus INTEGER,Age …
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