5 Free Programs to Grasp SQL for Knowledge Science – KDnuggets

SQL is a must have ability for all knowledge professionals. However attaining mastery in SQL is a steady journey. 

Right here we’ve compiled an inventory of 5 tremendous helpful but free SQL programs that can assist you study and develop into proficient in SQL. These programs cowl all of the SQL you’ll want for knowledge science: from the fundamentals relational databases and SQL to NoSQL databases and extra.

Whether or not you’re new to SQL or seeking to brush up your SQL expertise, these programs will enable you to degree up. So let’s go over them!

Hyperlink: SQL Tutorial – Full Database Course for Learners

This course introduces you to the fundamentals of SQL and database administration techniques. You’ll study:

• CRUD operations 
• Schema design 
• Aggregation 
• Nested queries 
• Joins and Unions
• Features and Triggers 
• ER diagrams

Hyperlink: Mode SQL Tutorial

The SQL tutorial from Mode is without doubt one of the most complete programs that can assist you discover ways to question relational database tables utilizing SQL and reply enterprise questions.

This course is structured as a sequence of 4 modules:

• Primary SQL 
• Intermediate SQL 
• Superior SQL
• SQL analytics coaching 

Within the Primary SQL module, you’ll study and observe:

• SELECT, LIMIT, and WHERE clause
• Comparability and logical operators 
• LIKE, IN, and BETWEEN operators 
• IS NULL
• AND, OR, NOT operators
• ORDER BY

Within the Intermediate SQL part you’ll study:

• Mixture features 
• Group by and having 
• Distinct 
• Various kinds of joins 

Within the Superior SQL module, you’ll study the next:

• Knowledge sorts: dates and strings 
• Knowledge wrangling
• SQL string features and window features 
• Subqueries 
• Efficiency tuning 

You’ll then work on real-world case research within the SQL analytics coaching module.

Hyperlink: Study SQL Fundamentals for Knowledge Science Specialization

The SQL fundamentals for knowledge science specialization on Coursera will educate you virtually all of the SQL that you just want in your knowledge science profession.

The next are the programs within the specialization:

• SQL for Knowledge Science 
• Knowledge wrangling evaluation and AB testing with SQL 
• Distributed Computing with Spark SQL 
• SQL for Knowledge Science Capstone Undertaking

Notice: This specialization is obtainable on Coursera. So you may audit it without spending a dime. In the event you want a verified certificates, nevertheless, you must have a Coursera Plus subscription. You can even apply for monetary help if you’re not capable of pay for the certificates.

Hyperlink: NoSQL vs SQL – Which Kind of Database Ought to You Use?

As an information scientist, you need to work with each relational and NoSQL databases. Earlier than diving into NoSQL databases, it is useful to grasp the traits of SQL and NoSQL databases and the use instances for every of those.

On this quick course on SQL vs. NoSQL databases, you’ll get to discover the next:

• The traits of relational and NoSQL databases 
• The necessity for NoSQL databases 
• The professionals and cons of every of those database sorts
• When to make use of RDBMS vs. NoSQL databases

Hyperlink: NoSQL Database Tutorial – Full Course for Learners

On this quick course on NoSQL databases, you’ll discover the several types of NoSQL databases and likewise work on initiatives. You’ll study:

• Why you must use NoSQL databases
• Tabular databases 
• Doc databases 
• Graph databases 
• Key-value databases
• Multi-model kind

I hope you discovered this compilation of SQL programs for knowledge science useful. You possibly can take all of those programs without spending a dime. But when you have already got some familiarity with SQL, you may select to work solely by the SQL for knowledge science specialization.
 
 

Bala Priya C is a developer and technical author from India. She likes working on the intersection of math, programming, knowledge science, and content material creation. Her areas of curiosity and experience embody DevOps, knowledge science, and pure language processing. She enjoys studying, writing, coding, and occasional! At present, she’s engaged on studying and sharing her information with the developer neighborhood by authoring tutorials, how-to guides, opinion items, and extra. Bala additionally creates participating useful resource overviews and coding tutorials.