This digital product is a complete, placement-oriented SQL course designed to help students, freshers, and working professionals crack SQL interviews and build strong database fundamentals required for software, data, and analytics roles.

The course is structured from beginner to advanced level, focusing on concept clarity, real interview questions, and hands-on SQL queries commonly asked in technical interviews.

Topics Covered in This SQL Product

1. SQL Fundamentals

What is SQL & DBMS
Types of Databases
RDBMS Concepts
Tables, Rows, Columns
Data Types
Primary Key & Foreign Key
Constraints (NOT NULL, UNIQUE, CHECK, DEFAULT)

2. Data Definition Language (DDL)

CREATE
ALTER
DROP
TRUNCATE
RENAME
Table structure modifications

3. Data Manipulation Language (DML)

INSERT
UPDATE
DELETE
Bulk data operations
Handling NULL values

4. Data Query Language (DQL)

SELECT statement
DISTINCT
WHERE clause
ORDER BY
LIMIT / TOP
Aliases

5. SQL Operators

Arithmetic Operators
Comparison Operators
Logical Operators (AND, OR, NOT)
BETWEEN, IN
LIKE & Wildcards
IS NULL / IS NOT NULL

6. Aggregate Functions

COUNT()
SUM()
AVG()
MIN()
MAX()
GROUP BY
HAVING clause
Difference between WHERE vs HAVING

7. Joins (Very Important for Placements)

INNER JOIN
LEFT JOIN
RIGHT JOIN
FULL JOIN
SELF JOIN
CROSS JOIN
Join-based interview problems

8. Subqueries

Single-row subqueries
Multi-row subqueries
Nested subqueries
Correlated subqueries
Subqueries with SELECT, WHERE, FROM

9. SQL Functions

String Functions
Numeric Functions
Date & Time Functions
Conversion Functions
CASE statement

10. Constraints & Keys

Primary Key
Foreign Key
Composite Key
Candidate Key
Referential Integrity

11. Views & Indexes

Creating and using Views
Advantages of Views
Indexes
Types of Indexes
Performance optimization basics

12. Transactions & TCL

Transaction concepts
COMMIT
ROLLBACK
SAVEPOINT
ACID properties

13. SQL Interview Questions & Queries

Most frequently asked SQL interview questions
Company-level SQL queries
Real-world database scenarios
Query optimization basics
Common mistakes & best practices

Who Should Buy This Product?

Students preparing for campus placements
Freshers applying for software, data analyst, or backend roles
Professionals revising SQL for interviews
Anyone who wants strong SQL fundamentals

Outcome After Completing This Course

Strong SQL foundation
Confidence to solve any SQL interview question
Clear understanding of real-world database queries
Placement-ready SQL knowledge

Testimonials

Services

ATS Resume Review & Job Application Optimization

Complete SQL for Interview

About me