Practice Data Science Programming Projects

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Data Science is at the forefront of technological innovation. This Skill Tree offers a beginner - friendly and comprehensive exploration of the data analysis and interpretation world. By following a well - structured roadmap, you'll learn essential concepts and tools through hands - on, non - video courses. Practical exercises in the interactive playground will strengthen your skills in statistical analysis, machine learning, and data visualization.

Exercises

Index	Name	Difficulty	Practice
01	ASCII Art Animation With OpenCV	Beginner	🚀 Start Lab
02	Gravitational Simulation of Earth and Super Jupiter	Beginner	🚀 Start Lab
03	Manage MySQL User Permissions	Beginner	🚀 Start Lab
04	Classifying Iris Using SVM	Beginner	🚀 Start Lab
05	Credit Card Holder Risk Prediction	Beginner	🚀 Start Lab
06	K-Nearest Neighbors Regression Algorithm Implementation	Beginner	🚀 Start Lab
07	Linear Regression Fitting and Plotting	Beginner	🚀 Start Lab
08	Implementing Minkowski Distance Metric	Beginner	🚀 Start Lab
09	Implementation of Polynomial Regression	Beginner	🚀 Start Lab
10	Simple Handwritten Character Recognition Classifier	Beginner	🚀 Start Lab
11	A Simple Course Database	Beginner	🚀 Start Lab
12	Managing Database Indexes in MySQL	Beginner	🚀 Start Lab
13	Add Student Personal Information	Beginner	🚀 Start Lab
14	Adding Constraints to the Course Schedule	Beginner	🚀 Start Lab
15	Adding Unique Constraint to City Names	Beginner	🚀 Start Lab
16	Average Salaries Per Department	Beginner	🚀 Start Lab
17	Backup MySQL Database with Mysqldump	Beginner	🚀 Start Lab
18	Biology Course Alumni Search	Beginner	🚀 Start Lab
19	Calculate User's Encrypted Password	Beginner	🚀 Start Lab
20	Change Default Value for Countrylanguage Table	Beginner	🚀 Start Lab
21	Cities With Over One Million Population	Beginner	🚀 Start Lab
22	City Names and Respective Countries	Beginner	🚀 Start Lab
23	Database Management and SQL Self-Join	Beginner	🚀 Start Lab
24	Columbus Discovery of the New World	Beginner	🚀 Start Lab
25	Comprehensive Operation of Basic Functions	Beginner	🚀 Start Lab
26	Comprehensive Challenge of This Section	Beginner	🚀 Start Lab
27	Comprehensive Operation of Conversion Functions	Beginner	🚀 Start Lab
28	Database Constraint Design and Implementation	Beginner	🚀 Start Lab
29	Countries and Codes in Region	Beginner	🚀 Start Lab
30	Countries With 1 Billion+ Population	Beginner	🚀 Start Lab
31	Accessing MySQL Database and Querying GNP	Beginner	🚀 Start Lab
32	Country GNP and Population Query	Beginner	🚀 Start Lab
33	Creating Stored Procedures for Course Data Retrieval	Beginner	🚀 Start Lab
34	Creating Secure MySQL User Accounts	Beginner	🚀 Start Lab
35	Creating Product Information Table	Beginner	🚀 Start Lab
36	SQL Queries for Student Course Analysis	Beginner	🚀 Start Lab
37	MySQL Database Management Fundamentals	Beginner	🚀 Start Lab
38	Mastering Database Management with SQL	Beginner	🚀 Start Lab
39	Delete Course Schedule View Data	Beginner	🚀 Start Lab
40	Delete Expired Course Information	Beginner	🚀 Start Lab
41	Comprehensive MySQL Data Manipulation	Beginner	🚀 Start Lab
42	SQL Querying for Employee Data	Beginner	🚀 Start Lab
43	Mastering MySQL Database Management	Beginner	🚀 Start Lab
44	Format Query for Teacher Salary	Beginner	🚀 Start Lab
45	General Function Comprehensive Challenge	Beginner	🚀 Start Lab
46	Accessing MySQL Database and SQL Querying	Beginner	🚀 Start Lab
47	Identify MVP Recipient in Game	Beginner	🚀 Start Lab
48	Mastering Database Joins for Personnel Data	Beginner	🚀 Start Lab
49	Largest Population by Country	Beginner	🚀 Start Lab
50	Largest Population in Five Countries	Beginner	🚀 Start Lab
51	Create MySQL Maximum Value Function	Beginner	🚀 Start Lab
52	Modifying MySQL Database Table Constraints	Beginner	🚀 Start Lab
53	Modify Primary Key of Countrylanguage Table	Beginner	🚀 Start Lab
54	Modify Student Table Attributes	Beginner	🚀 Start Lab
55	Mastering MySQL Data Analysis	Beginner	🚀 Start Lab
56	Number of Users With Modify Permissions	Beginner	🚀 Start Lab
57	Obtain Pi With Two Decimals	Beginner	🚀 Start Lab
58	Official Languages in Various Countries	Beginner	🚀 Start Lab
59	Personnel Management System Database Setup	Beginner	🚀 Start Lab
60	Print Current Login User Information	Beginner	🚀 Start Lab
61	Printing Current Time with MySQL	Beginner	🚀 Start Lab
62	Print Standard Body Temperature in Fahrenheit	Beginner	🚀 Start Lab
63	Query City Information for Specified IDs	Beginner	🚀 Start Lab
64	Query City Names With Country	Beginner	🚀 Start Lab
65	Query GDP for All Countries	Beginner	🚀 Start Lab
66	Query Is So Slow	Beginner	🚀 Start Lab
67	Query Population of All Countries	Beginner	🚀 Start Lab
68	SQL Database Creation and Non-Equijoin Query	Beginner	🚀 Start Lab
69	Query User Levels With Left Join	Beginner	🚀 Start Lab
70	Querying Country Codes Range	Beginner	🚀 Start Lab
71	Querying Official Languages and Sorting	Beginner	🚀 Start Lab
72	Querying Official Languages of Each Country	Beginner	🚀 Start Lab
73	Reverse Print File Content Command	Beginner	🚀 Start Lab
74	Right Outer Join Query User Level	Beginner	🚀 Start Lab
75	Salary Range for Teachers by Department.	Beginner	🚀 Start Lab
76	Search for Favorite Courses	Beginner	🚀 Start Lab
77	Stored Procedure Cursor Database Retrieval	Beginner	🚀 Start Lab
78	Student Grade Management System	Beginner	🚀 Start Lab
79	Creating Database Views in MySQL	Beginner	🚀 Start Lab
80	Mastering SQL Subqueries for Data Analysis	Beginner	🚀 Start Lab
81	Top 5 Countries by Land Area	Beginner	🚀 Start Lab
82	Updating Student GPA in MySQL Database	Beginner	🚀 Start Lab
83	Creating and Updating Database Views	Beginner	🚀 Start Lab
84	View for Course Information	Beginner	🚀 Start Lab
85	Exploring MySQL User Permissions	Beginner	🚀 Start Lab
86	Wuxu Reform Duration Calculation	Beginner	🚀 Start Lab
87	COVID-19 Data Analysis with Python	Beginner	🚀 Start Lab

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