SQL

SQL – Course Description
SQL (Structured Query Language) is a standard language used to store, manage, and retrieve data from databases. It is widely used in websites, software applications, business systems, and data management.
This course introduces students to SQL from the basics and helps them understand how databases work. Students will learn how to create databases and tables, add and manage data, search for information, and perform different operations using SQL commands.
Learning Objectives
- Understand what SQL and databases are.
- Learn the basic concepts of database management.
- Understand databases, tables, rows, and columns.
- Learn how to create and manage tables.
- Add, update, and delete data.
- Retrieve specific information from a database.
- Use conditions to filter data.
- Sort and organize database records.
- Understand primary keys and relationships.
- Learn basic SQL functions.
- Understand different types of SQL queries.
- Learn how to combine data from multiple tables.
- Practice SQL with real-world examples.
Simple Example
A school database can store information such as student names, courses, marks, fees, and contact details. SQL can be used to search for a particular student, update their marks, or display students who scored above a certain percentage.
In simple words:
SQL is used to communicate with a database and manage the data stored in it.