About Database Management System

✴ A database management system (DBMS) is system software for creating and managing databases. The DBMS provides users and programmers with a systematic way to create, retrieve, update and manage data.✴ ► A DBMS makes it possible for end users to create, read, update and delete data in a database. The DBMS essentially serves as an interface between the database and end users or application programs, ensuring that data is consistently organized and remains easily accessible.✦ 【Topics Covered in this App are Listed Below】 ⇢ Overview ⇢ Architecture ⇢ Data Models ⇢ Data Schemas ⇢ Data Independence ⇢ ER Model - Basic Concepts ⇢ ER Diagram Representation ⇢ Generalization Aggregation ⇢ Codd's 12 Rules ⇢ Relation Data Model ⇢ Relational Algebra ⇢ ER Model to Relational Model ⇢ SQL Overview ⇢ Normalization ⇢ Joins ⇢ Storage System ⇢ File Structure ⇢ Indexing ⇢ Hashing ⇢ Transaction ⇢ Concurrency Control ⇢ Deadlock ⇢ Data Backup ⇢ Data Recovery ⇢ What is a Database Management System? ⇢ Who Interacts with a DBMS? ⇢ Components of a Database System ⇢ Basic Set Concepts ⇢ DBMS Database Models ⇢ Database Keys ⇢ What is First Normal Form (1NF)? ⇢ What is Second Normal Form? ⇢ Third Normal Form (3NF) ⇢ Boyce-Codd Normal Form (BCNF) ⇢ Fourth Normal Form (4NF) ⇢ create command ⇢ ALTER command ⇢ Truncate, Drop or Rename a Table ⇢ INSERT SQL command ⇢ UPDATE SQL command ⇢ DELETE SQL command ⇢ Commit, Rollback and Savepoint SQL commands ⇢ GRANT and REVOKE ⇢ SELECT SQL Query ⇢ WHERE SQL clause ⇢ SQL LIKE clause ⇢ ORDER BY Clause ⇢ Group By Clause ⇢ HAVING Clause ⇢ DISTINCT keyword ⇢ AND & OR operator ⇢ Division Operator in SQL ⇢ SQL Constraints ⇢ What are SQL Functions? ⇢ Scalar Functions ⇢ SQL Alias - AS Keyword ⇢ SET Operations in SQL ⇢ What is an SQL Sequence? ⇢ SQL VIEW