Considering that the database is where all transactions take place, it makes for one of the most important elements in big data. The most popular language for database administration is SQL. That’s why people are looking toward getting an SQL certification these days.
Since data science is a fast-growing profession, database design, database administration, and business intelligence requirements are increasing too.
Microsoft SQL (Structured Query Language) has become the primary programming language for database management. And, to become an SQL DBA (Server Database Administrator), you need an SQL certification.
In this article, we’ll go over the top SQL certifications you can opt for in 2021, including their pricing.
Let’s dive right in.
What SQL Certification is Best?
Regardless of whether you’re a data scientist, relational database developer, or into data administration, you can still gain knowledge using SQL courses and certifications.
You shouldn’t focus on getting several SQL certifications. Based on your experience level, specialization, and career path, you should focus on getting one or two SQL certifications.
If you’re new to data science and SQL, you should opt for certification courses that focus on database fundamentals, database development, and basic SQL queries.
For experienced people, you may want to focus on certification courses that go into things like NoSQL databases, T-SQL, machine learning, foreign keys, and Python integration.
The following are some of the top SQL certifications you can go for.
1. The Complete SQL Bootcamp 2021 on Udemy
Difficulty: Beginner to Intermediate
Duration: 9 Hours
Udemy has become one of the biggest online learning platforms with courses on thousands of different subjects. They provide certification programs for tons of data science-related skills.
One of their best SQL-based courses is the Complete SQL Bootcamp that aims to teach students a wide range of SQL concepts. The good thing about it is that it works for newcomers and experienced professionals.
The course is a foundational program, so it starts off with the basics and then moves on to advanced concepts like performance tuning, relational database management, and more.
Querying is a major part of SQL, and you’ll be learning how to write and read those complex queries. You’ll be doing so using PostgreSQL, and it also works with MySQL, Amazon Redshift, Microsoft SQL Server, and more.
Here are a few things you’ll be learning.
- Basics of SQL syntax
- Complete understanding of PostgreSQL and PgAdmin
- String operations and comparison operations
- Common SQL JOIN commands
- Aggregate functions and GROUP BY commands
- Using logical operators and adding logic flow to SQL queries
- Basics of Python
By the end of the certification, you’ll understand what SQL is all about, learn data analysis, and learn to use your SQL knowledge in different cases.
In total, there are 12 sections and 83 lectures in the course. You’ll also get access to videos, articles, and several other resources when you buy the certification.
To learn more about Udemy’s Complete SQL Bootcamp, you can go here.
2. PL/SQL Language Reference on Oracle
Difficulty: Intermediate to Advanced
Oracle is known to provide extremely insightful and knowledge-filled guides. Their PL/SQL Language Reference course is one of many reference guides that they’ve developed. It is compiled using the extensive collective experience of the company with database creation and management.
The company has a massive variety of virtual textbooks, PDFs, and free guides on several data science topics. Since the company tries to tie these guides to their systems, the guides are designed to do just that. That’s why this particular certification course is a detailed reference guide on how SQL works within the Oracle environment.
You’ll be learning and getting vast SQL knowledge from the guide, including things like how you can organize and structure data, link tables via foreign keys, implement customized commands, and more.
Talking about the reference material, when you start with the course, you get the following.
- PL/SQL data types and how you can manage each type
- PL/SQ: language fundamentals and their elements
- SQL statements and how you can implement them
- A complete step-by-step guide on how you can create a fully functioning Oracle database
If you’re someone who’s looking to work or is actively working within the Oracle database, this reference guide is ideal for you.
Furthermore, if you’re a future Oracle-based SQL developer, SQL database administrator, or data warehouse manager, you’ll have more to gain from this course than anyone else.
Learning about SQL syntax basic, tuning, and optimization will help you get on the fast track to becoming an SQL expert.
If you want to learn more about Oracle’s PL/SQL Language Reference course, you can check it out here.
3. Managing Big Data with MySQL on Coursera
Price: $49 Per Month on Coursera Subscription/ Free 7-Day Trial
Duration: 32 Hours
Coursera has one of the largest collections of online courses and certifications. It has a massive number of courses on data science and SQL.
Their Managing Big Data with MySQL course is a major certification course for data scientists of all levels. It’s designed for data analysts, business analysts, and data scientists learning SQL to further enhance their careers.
The course is offered by Duke University and is part of the Excel to MySQL: Analytic Techniques for Business Specialization series.
The 4-week course will teach you how to use relational databases in business analysis and data analytics. You will also learn to use entity-relationship diagrams, query and table aggregation statements, and SQL statements.
Here’s a quick breakdown of how the course proceeds.
- You learn about the specialization and course.
- Start learning and understanding relational databases.
- Learn the queries to extract data from single tables.
- Further learn the queries to summarize groups of data from multiple tables.
- Learn the queries to address more detailed business questions
By the time you’re done, you’ll earn a shareable certificate that you can put on your LinkedIn profile, website, and resume.
You can learn more about Coursera’s Managing Big Data with MySQL course here.
4. Learn SQL Online by Codeacademy
Price: $15.99 Per Month
Duration: 7 Hours
Codeacademy is an online learning platform for all sorts of coding languages. It provides online courses, guides, and database certifications for various database and programming languages.
Their Learn SQL Online course is a complete learning program that provides an outlook on relational databases via SQL programming languages.
It’s offered as a basic SQL certification (with a post-certification exam). The reason it holds up better against other certification courses is that it comes with four unique case studies as projects. That gives students hands-on, real-world practical experience.
Every student who starts the course will learn how to build queries that can communicate with various tables and manipulate data as required. Students also receive a complete list-down of available SQL commands, giving you all the SQL knowledge you need.
Here are the four major modules.
- Manipulation – learning how to use SQL to create, access, and update data stored in databases.
- Queries – to perform complex queries by learning essential query keywords and their functionalities.
- Aggregate Functions – learning all the powerful functions for performing complex database operations.
- Multiple Tables – expanding Microsoft SQL server skills by creating and manipulating databases that have multiple related tables.
There are no prerequisites for starting the course; you can just sign up for it at any time.
Keep in mind that the course doesn’t make you Microsoft certified; you won’t be getting MCSA or MCSE credentials.
To learn more about Codeacademy’s Learn SQL Online course, you can go here.
5. Advanced SQL for Data Scientists LinkedIn Learning
Price: $29.99 LinkedIn Learning Subscription/$19.99 for Annual Subscription (Free for LinkedIn Premium Members)
Duration: 2 Hours
LinkedIn Learning has grown into a massive online learning platform with courses, videos, and guides on countless subjects by industry experts.
The Advanced SQL for Data Scientists course on the site is designed for experienced data scientists who wish to learn filtering and data manipulation on a higher level. It covers SQL demands, essentials, and the changing role of the data scientist.
There are no course-related prerequisites for signing up for it, but you do need at least 2-3 years of experience to make sense of it.
With a welcome video and exercise files, the course is divided into six chapters.
- SQL as a Tool for Data Science
- Basic Statistics with SQL
- Data Munging with SQL
- Filtering, Join, and Aggregation
- Window Functions and Ordered Data
- Preparing Data for Analytics Tools
Each chapter has its own quizzes that check your understanding of the concepts. You will get one project file with the course, and you can access it on a tablet, phone, or computer.
When you’re done, you’ll receive a certification of completion.
To learn more about the Advanced SQL for Data Scientists course on LinkedIn Learning, you can go here.
6. IBM Certified Database Associate – DB2 9 Fundamentals
Duration: 2 Hours
IBM offers a lot of certifications and courses for various computer science-related subjects. Their certifications are usually associated with the company’s systems.
This particular certification is based on platform analytics with regard to big data and AI. It’s an entry-level DBA but requires the individual to have a fundamental knowledge of DB2 9 concepts.
You should understand basic to intermediate tasks that are required in day-to-day administration, including basic SQL and how DB2 9 is packaged and installed.
Furthermore, you need to understand how to create databases, manage database objects, database security, and transaction isolation.
To pass and get the certification, you need to pass the certification exam. There’s a recommended prerequisite skill of being an entry-level DB2 9 database administrator; however, it isn’t mandatory,
Once you’re done with this certification exam, you can move on to more advanced versions to get completely certified for IBM systems.
To learn more about the IBM Certified Database Associate certification course, you can go here.
7. PostgreSQL 12 Associate Certification by EDB
Duration: 1 Hour
SQL server certifications are important if you’re looking to specialize in that field. The PostgreSQL 12 Associate Certification by EDB tests your understanding of how to work with PostgreSQL servers.
PostgreSQL is a relational database that can be scaled across enterprises, and the current version is 12, hence the name.
Upon completion, you will receive a personalized PDF certification from EDB, along with a badge that you can display on your website, CV, and LinkedIn profile.
The exam is a multiple-choice test that takes one hour. You need a passing score of 70% or above to get your certificate. Keep in mind that you have to take the exam within six weeks of purchase.
You will be tested on the process of implementing PostgreSQL servers, how they work, and how you can scale your systems.
Keep in mind that there is a prerequisite for taking this exam – you need to pass the Foundations of PostgreSQL course exam.
If you want to learn more about EDB’s PostgreSQL 12 Associate Certification, you can go here.
Are SQL Certifications Worth It?
Database platforms are a major part of data science and require experts to manage them. Both MySQL and Microsoft SQL are popular database platforms that require years of experience to master and specialize in.
Implementing SQL is crucial to data management; there is no single tutorial on how to do so. You need training, experience, and knowledge to carry out the necessary duties to use SQL.
It's best to get an SQL certification along with a data science certification to maximize your credentials.
Getting an SQL certification will not only help you become better but will also improve your qualifications. That will help you land better opportunities and negotiate for a better data scientist salary.