#SQL for Data Analysis and Data Science in 2021

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Jumat, 22 Oktober 2021

SQL by SQL example, SQL Challenges& SQL Final Exam using Real World SQL Database for Data Science & Data Analysis

What you will learn

Using Real World PostgreSQL Database Airlines Database.

Use Python Pandas to Analyze and visualize Postgres Data Output.

SQL Test Your Self, SQL Challenges, SQL Final Exam and more

Use Python to visualize Postgres Data Output and get your Conclusion about Data.

Use SQL to create databases.

Use Python bs4 & Pandas to Scrape a webpage, Analyze and visualize The Scraped Data.

Use SQL to insert data into a table.

Use SQL to Query & retrieve data from databases.

Use SQL to Sort records after retrieving from databases.

Use SQL to Group data by specific conditions.

Use SQL to Filter data by using where clause.

How & when to use Joins types in SQL.

How to create and deal with Sub-queries in SQL.

How to create and deal with common table expression in SQL.

Use SQL to perform data analysis of real world databases

Use SQL to perform advanced techniques to retrieve data from databases.

Use Python with SQL Postgres database.

Use Python to load Postgres Data Output file.

Apply what you will learn in Python & SQL through exercises.

Description

This course will make you SQL query expert it’s a complete SQL boot camp and, You’ll learn the skills you need to retrieve insightful data from a database. There are many test your self quizzes distributed over the course the course with detailed solutions so you to practice more and more . After completing this course and all of it’s quizzes and the Final exam, you will be comfortable with using SQL & PostgreSQL in data analysis and data science by SQL Challenges and Final Exam and more

You will learn many tips and tricks in PostgreSQL to query data through the following Topics covered in this course:

Using Real World PostgreSQL Database Airlines Database.

What is a Database
SQL database for beginners.
Installing PostgreSQL database.
Creating Tables in database using SQL.
Drop table from SQL database
SELECT Statement use with SQL database data querying
WHERE Clause use with SQL database data querying
Operators used with Where clause in SQL database data querying .
AND & OR use with SQL database data querying
like use with SQL database data querying .
Filtering Operators use with SQL database data querying .
ORDER BY use with SQL database data querying .
LIMIT use with SQL database data querying .
DISTINCT use with SQL database data querying .
Renaming Column in SQL database.
Functions use with SQL database data querying .
GROUP BY & HAVING Clauses use with database data querying .
Aggregation Queries in SQL database.
CASE Clause use with database data querying .
Time & date data in SQL in database.
Table Joins in SQL database.
INNER and OUTER Joins in SQL database.
UNION, UNION ALL, INTERSECT and EXCEPT Clauses use with SQL database data querying.
Sub-queries use with SQL database data querying .
Correlated Sub queries use with SQL database data querying.
Window Functions for Analytics in SQL database.
Test Your Self SQL Quizzes distributed throughout this course.
Challenges for more SQL practice in this course.
Final Exam in SQL database data querying.
Using Python with SQL Postgres database.
Using Python to load Postgres Data Output file.
Using Python Pandas to Analyze and visualize Postgres Data Output.

English

language

Content

Introduction

Course Introduction

PostgreSQl database Download & Install

PostgreSQl Download & Install

Create Database

Restore Database

Test You Self (1)

Test You Self (1) Solution

Database Airlines Overview

Database Overview 1

Database Overview 2

SQL Basics

SQL Data Types

Select Statement

Select Challenge Solution

Select Statement For all Airlines Database Tables

Distinct

Where Clause

Operators used with Where Clause

Where Clause + AND & Where Clause + OR

Where Clause + LIKE

LIMIT & ORDER BY

FETCH vs LIMIT

(Where Clause + BETWEEN & IN) & AS

NOT IN

ISNULL & IS NOT NULL

CAST

Test You Self (2)

Test You Self (2) Solution

SQL Basics Challenge

SQL Basics Challenge Solution

SQL Aggregations

COUNT( ) Function, CREATE TABLE & INSERT INTO TABLE

SUM( ) Function

MIN( ) , MAX( ) & AVG( ) Functions

GROUP BY & HAVING

Test You Self (3)

Test You Self (3) solution

SQL Aggregation Challenge

SQL Aggregation Challenge Solution

SQL Conditional

CASE

NULLIF()

COALESCE() Function in SQL

Test You Self (4)

Test You Self (4) solution

SQL Conditional Challenge

SQL Conditional Challenge Solution

SQL Time Data management

Overview of Time Functions in PostgreSQL

TIMESTAMP EXTRACT()

DATE_TRUNC() & DATE_PART()

::DATE IN PostgreSQL & CURRENT_DATE & now( )

SQL Joins

INNER JOIN

Joins Types

LEFT OUTER JOIN

Deep understanding of LEFT JOIN

RIGHT OUTER JOIN

FULL OUTER JOIN

CROSS JOIN

UNION, UNION ALL, INTERSECT & EXCEPT

SELF JOIN

USING

NATURAL JOIN

Test You Self (5)

Test You Self (5) solution

SQL JOINS Challenge

SQL JOINS Challenge Solution

Intermediate SQL

Sub-queries

SQL Sub-query + EXISTS OR ANY OR ALL

Common Table Expression

Test You Self (6)

Test You Self (6) solution

SQL Sub-query Challenge

SQL Sub-query CTE Challenge

SQL Sub-query CTE Challenge Solution

Advanced PostgreSQL Functions

Math Functions

Window Functions OVER()

Window Functions RANK() + OVER() & NTILE() + OVER()

Window Functions OVER() + LEAD()

Window Functions OVER() + LAG()

Advanced SQL

GROUPING SETS(), ROLLUP(), CUBE()

SELECT Statement + INTO & SELECT Statement + INTO + IN

VIEW()

Test You Self (7)

Test You Self (7) Solution

PostgreSQL String Functions

PostgreSQL POSITION Function

STRPOS() & REPLACE() in PostgreSQL

PostgreSQL LEFT(), RIGHT(), BTRIM() & SPLIT_PART() Functions

PostgreSQL CONCAT Function

PostgreSQL LOWER(), UPPER() & INITCAP() Functions

Test You Self (8)

Test You Self (8) solution

Python + PostgreSQL introduction

Python Download & Install

Online jupyter lab

Using CMD & Python Pip.PyPi to Install Jupyter Lab & Pandas

Jupyter Commands

Using Python to load and querying PostgreSQL Database

Runnig SQL Query Using Python Panadas Module

Using Python Pandas Package to load PostgreSQL the Data Output file

Using Python in Data Analysis of PostgreSQL Data output

Data Analysis Process Overview

Pandas Methods

Pandas Data Analysis

Pandas data visualization

Sampling Error

Final Exam

Final Exam Solution

Bonus Section -Thank You

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