Learn SQL for Data Analysis | Beginner-Friendly SQL Queries Tutorial
SQL Basics for Data Analysis: Step-by-Step Beginner's Guide to SQL Queries
Want to learn SQL for data analysis? This beginner-friendly SQL tutorial covers essential SQL queries, including SELECT, WHERE, GROUP BY, and JOIN, to help you analyze data efficiently. Whether you're a data analyst, business analyst, or data science beginner, this step-by-step guide will help you get started with SQL.
In this tutorial, you'll learn:
✔️ Basic SQL commands for beginners
✔️ How to write SQL queries for data analysis
✔️ Using SELECT, WHERE, GROUP BY, and JOIN
✔️ SQL best practices for data analysts
📌 Watch till the end for practical SQL examples and tips!
Data you can try :-
CREATE TABLE : -
CREATE TABLE [dbo].[Students](
[Name] [varchar](50) NULL,
[Age] [varchar](50) NULL,
[Grade] [varchar](50) NULL
) ON [PRIMARY]
GO
00:00 - Intro
01:05 - 1. SELECT : To get table rows
SELECT Name, Age FROM Students;
1:21 - 2. INSERT: Learn how to add new data to your database with the INSERT statement.
INSERT INTO Students (Name, Age, Grade)
VALUES ('John Doe', 20, 'A');
1:37 - 3. UPDATE: Understand how to modify existing records using the UPDATE command.
UPDATE Students
SET Grade = 'B'
WHERE Name = 'John Doe';
1:57 - 4. DELETE: Discover how to remove unwanted data with the DELETE command.
DELETE FROM Students
WHERE Name = 'John Doe';
2:14 - 5. WHERE: Explore how to filter data based on specific conditions using the WHERE clause.
SELECT Name, Age FROM Students
WHERE Age = 18;
2:36 - 6. ORDER BY: Sort your query results in ascending or descending order with ORDER BY.
SELECT Name, Age FROM Students
ORDER BY Age DESC;
2:52 - 7. AGGREGATE FUNCTIONS: Master SQL's powerful functions like COUNT(), SUM(), AVG(), MIN(), and MAX() to perform calculations on your data.
SELECT COUNT(*) FROM Students;
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