The SQL course at 7iTech Solutions is designed to teach students how to interact with relational databases using SQL. The course covers database concepts, writing SQL queries, data manipulation, and reporting, helping learners become proficient in handling real-time data for applications, analytics, or backend development.
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✔️ What is a Database?
✔️ Relational vs Non-Relational Databases
✔️ Overview of RDBMS (MySQL, SQL Server, PostgreSQL)
✔️ Tables, Rows, Columns, and Keys
✔️ Installation & Setup of SQL Tools (MySQL Workbench or pgAdmin)
✔️ CREATE, USE, SHOW, DESCRIBE
✔️ Creating Tables (CREATE TABLE)
✔️ Inserting Data (INSERT INTO)
✔️ Viewing Data (SELECT)
✔️ Updating Records (UPDATE)
✔️ Deleting Records (DELETE)
✔️ WHERE Clause
✔️ Logical Operators (AND, OR, NOT)
✔️ Comparison Operators (=, >, <, !=, BETWEEN, IN, LIKE)
✔️ ORDER BY and LIMIT Clauses
✔️ Primary Key & Foreign Key Concepts
✔️ Types of Joins:
✔️ Practical Use of Joins in Reports
✔️ Aggregate Functions: COUNT(), SUM(), AVG(), MIN(), MAX()
✔️ Grouping Data: GROUP BY, HAVING
✔️ String Functions: CONCAT(), LENGTH(), SUBSTRING()
✔️ Date & Time Functions
✔️ Subqueries in SELECT, FROM, and WHERE
✔️ Correlated vs Non-Correlated Subqueries
✔️ EXISTS and IN Clauses
✔️ Altering Table Structure (ALTER TABLE)
✔️ Adding/Removing Columns
✔️ Dropping Tables (DROP TABLE)
✔️ Truncating Data (TRUNCATE)
✔️ Creating and Using Views
✔️ Indexing for Performance (CREATE INDEX)
✔️ Constraints: NOT NULL, UNIQUE, CHECK, DEFAULT, FOREIGN KEY
✔️ Creating Users
✔️ Granting & Revoking Permissions
✔️ Data Security Concepts
✔️ Employee Database
✔️ Student Management System
✔️ E-commerce Product & Order Management
✔️ Interview-Based SQL Queries Practice
