Course Content
Introduction: How to Become a Data Analyst
How to Become a Data Analyst
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Installing MySQL and create a database for Windows, MacOS, and Linux
How to Installing MySQL and create a database.
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SELECT Statement and Where Clause in MySQL
Starting your Data Analysis Properly
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LIMIT` + ALIASING` Group by+ Order By, Having Vs Where in MySQL
LIMIT` + ALIASING`
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JOINS
Joins in MySQL
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Unions in MySQL
Unions in MySQL
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Window functions in MySQL
Window functions:- in MySQL
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Common Table Expressions (CTEs) in MySQL and Temp Tables
Common Table Expressions (CTEs) in MySQL
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stored procedures
stored procedures.
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Triggers and Events in MySQL
Triggers and Events
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Data Cleaning in MySQL
Data Cleaning in MySQL
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MSQL EXPLORATORY DATA ANALYSIS
MSQL EXPLORATORY DATA ANALYSIS
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Data Analyst Resume
Data Analyst Resume
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How To Download Your Data Analyst Bootcamp Certification (Congrats!!)
How To Download Your Data Analyst Bootcamp Certification (Congrats!!)
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Guide to Data Analysis for Beginners
About Lesson

This concise overview provides a quick reference to using `LIMIT` and `ALIASING` in MySQL queries for effective data retrieval and manipulation

LIMIT` + ALIASING`

Limits in MySQL

‘LIMIT` Clause’  It is used to restrict the number of rows returned by a query. The syntax is `LIMIT [offset,] row_count` or `LIMIT row_count OFFSET offset`.

  ‘Example’

 `SELECT * FROM employees LIMIT 5;` — returns the first 5 rows.

  – ‘Example with Offset’  `SELECT * FROM employees LIMIT 5, 10;` — skips the first 5 rows and returns the next 10.

Aliasing in MySQL

 

-Column Aliasing: Allows renaming of column headings in the result set for better readability or to avoid conflicts.

  – Syntax: `SELECT column_name AS alias_name FROM table_name;`

  -Example’:  `SELECT employee_id AS ID, employee_name AS Name FROM employees;`

  

-Table Aliasing:-  Renames a table within a query, especially useful in complex queries or joins.

  -Syntax:- `SELECT t.column_name FROM table_name AS t;`

  – Example:-: `SELECT e.employee_name, d.department_name FROM employees AS e JOIN departments AS d ON e.department_id = d.id;`