WebJan 22, 2024 · The purpose of a DBMS is to bridge the gap, between the information and data. The data stored in memory or on a disk, must be converted to usable information., … WebThe Database and SQL Class 12 Notes are a great way to study all the concepts and also test your knowledge which can help students to cover all the important highlighted key …
Database Concepts Class 12 Computer Science Notes
WebNov 25, 2024 · 4. Sharing the Database – Allow multiple users to access the database at the same time. 5. Protecting the Database – It enables protection of the database from software/ hardware failures and unauthorized access. 6. Maintaining the Database – It is easy to adapt to the changing requirements. Some examples of DBMS are – MySQL, … WebFirst Step with SQL, Database Query using SQL will be explained in this session for Class 12 Informatics Practices by Lovejeet Arora on Unacademy CBSE Commer... grandview state university
SQL Notes.pdf - ip - Notes - Teachmint
WebClass Notes. Class: XII. Topic: Unit-3: Fundamentals of Java Programming (Contd..) Subject: Information Technology (802) Call a Method. Given the length and breadth of a rectangle as parameters returns the area of the rectangle. static double rectangle_area (double length, double breadth) {. return (length * breadth); WebJan 20, 2024 · SQL MCQ class 12. 7 Comments / CS Class 12 MCQ, IP Class 11 MCQ, SQL MCQ / By Sanjay Kumar. Get Most Important MCQ for SQL with answers. These SQL MCQ class 12 are very helpful for all students learning RDBMS, SQL or preparing for CUET, GATE or any IT or Computer Science competitive. Which of the following is not … WebJul 23, 2024 · Key Constraint: there are 3 key constraints defined below: Super Key: this is a set of attribute in a relation, for which no two tuples in a relation state have the same combination of values. Candidate key: keys which are candidate for super key. Primary Key: one of the candidate key is designated as primary key. grandview storage sheds