Курси по темі
Всі курсиБазовий
Relational Database and Normalization
This course delves into the theory behind relational databases. You'll learn what they are and see how they differ from non-relational databases. Throughout the course, we'll walk you through the ins and outs of database design and familiarize you with various types of relationships. Additionally, you'll explore the concepts of normalization and normal forms, equipping you with the knowledge to craft efficient and optimized databases.
Середній
Intermediate SQL
This course is perfect for those who already have a basic understanding of SQL and want to delve into more advanced concepts to craft more powerful queries. Throughout the course, you will become familiar with data grouping and filtering grouped data. You will also learn how to work with multiple tables simultaneously, including how to combine them. Additionally, you will explore different types of table joins and how to apply them in practice.
Базовий
Introduction to SQL
This course is for you if you are new to SQL, you want to quickly learn how to get the most out of SQL and you want to learn how to use SQL in your own application development.
Top 3 SQL Certifications
How to Confirm Your SQL Skills
Do you want to prove your SQL skills so that you have something to show during interviews at big companies like Apple, Google, Amazon, etc.? Then you should learn about SQL certifications.
Let's start with what SQL is in the first place.
SQL is a query language that helps a user or programmer interact with relational database models. With SQL, you can retrieve data, sort, group, join, and much more.
Best SQL certifications
But let's get back to the topic of this article. SQL certification is like a mini diploma that tells an employer that you have a strong command of SQL and can work with databases. Often, employers value having such a document that proves your skills, so let's take a look at several SQL certifications that well-known and major global IT companies can provide you with.
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Microsoft SQL certification
Microsoft SQL certification is a professional certification program designed for IT professionals who work with Microsoft SQL Server databases. This certification demonstrates your knowledge and skills in designing, managing, and maintaining databases using SQL Server.
Microsoft offers a variety of certifications for different levels of SQL proficiency and database interaction. Here are 5 of them:
- Microsoft Certified: Azure Data Fundamentals: This is an entry-level certification designed to introduce the fundamentals of data analysis and databases in Azure, including SQL Server.
- Microsoft Certified: Azure Database Administrator Associate: This certification is aimed at database administrators working with SQL Server in Azure.
- Microsoft Certified: Azure Data Engineer Associate: This certification is for data engineers who work with various Azure tools and services, including SQL Server.
- Microsoft Certified: Data Analyst Associate: This certification is geared towards data analysts working with SQL Server and other data analysis tools.
- Microsoft Certified: Azure AI Engineer Associate: While focused on artificial intelligence (AI), this certification may also include working with SQL Server data in the context of machine learning and data analysis.
It's also worth noting that Microsoft offers certification for working with the cloud-based Database Management System (DBMS) Azure. This DBMS is developed by Microsoft, so this company definitely knows how to assess a user's knowledge of SQL and databases. You can obtain certificates at different levels of SQL and Azure proficiency, from beginner level to the level of a data scientist who regularly works with big data.
- Price: Such certification comes at a cost, typically ranging from $100 to $200, depending on the type of certification. Additionally, if you are unable to pass the exam on your first attempt, you may need to pay an additional fee for the opportunity to retake the exam.
- Link: You can review all the exam types on the official Microsoft SQL certification page at the following link.
Oracle Database SQL Certification
Oracle SQL certification is a certification program designed for IT professionals and database administrators who want to demonstrate their knowledge and skills in working with Oracle databases, SQL querying, and Oracle Database administration. It covers various aspects of working with Oracle Database.
Oracle is a company that also owns its DBMS - Oracle Database. This company offers certification in the skill of using their product correctly. Here, they will also assess your SQL knowledge and your ability to apply these skills correctly in practice when working with databases.
Key certifications related to SQL and Oracle databases include:
- Oracle Database SQL Certified Associate (OCA): This is an entry-level certification that assesses your SQL skills and knowledge of Oracle databases. To earn this certification, you typically need to pass one or more exams that test your SQL knowledge and your ability to work with Oracle Database.
- Oracle Database SQL Certified Professional (OCP): This certification represents a higher level of expertise in SQL and Oracle Database. To achieve OCP, you must first become an OCA and then pass an additional exam that evaluates deeper knowledge and skills in Oracle Database administration.
- Oracle Certified Expert (OCE): These certifications typically focus on specific aspects of Oracle Database, such as administration, performance tuning, security, and more. They are intended for specialists who want to demonstrate expertise in a particular area of Oracle Database.
- Oracle Certified Master (OCM): This is the highest level of Oracle Database certification for database administrators. It involves performing complex tasks in a real Oracle Database environment and demonstrating deep knowledge and skills.
- Price: The cost of an Oracle exam varies from $150 to $200, depending on the chosen exam and certification. However, it's worth noting that the price for Oracle Certified Master (OCM) certification can range from $245 to $350 USD.
- Link: You can review the types of SQL certification offered by Oracle at this link.
EDB (EnterpriseDB) Postgres Certification
The EDB Postgres Certification program is designed to validate your skills and expertise in working with PostgreSQL, one of the most popular open-source relational database management systems (RDBMS). EDB is a company that provides commercial PostgreSQL solutions and services, and its certification program is recognized in the industry.
- Price: The cost of such certification is $250 USD
- Link: You can review and obtain such certification on the official EDB website at the following link.
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Is this certification really important
When looking for a junior position in smaller companies, such a certificate might not even be mentioned. However, if you aim to raise the bar and go for a high-paying position in a larger company, they may require you to prove your SQL knowledge with such a certificate. So, yes, a certification like this, along with SQL knowledge, is never redundant. It's an excellent addition that enhances your qualifications!
How to prepare for SQL certification
You can start learning SQL with our platform Codefinity, specifically with the SQL from Zero to Hero track! In this track, you will get a gentle introduction to the world of databases and SQL, and you will be able to master this language from the very basics.
Additionally, you can go even further by completing the Preparation for Data Science track. Here, you can use your SQL knowledge to begin your journey into data science and take a step toward a successful IT career!
FAQs
Q: Why should I pursue SQL certification?
A: SQL certification demonstrates your knowledge and skills in working with databases and the SQL language, which can significantly enhance your competitiveness in the job market. It can be particularly valuable when applying for positions in larger IT companies where certification may be a requirement.
Q: What SQL certifications are available?
A: There are several certification programs, including Microsoft SQL Certification, Oracle Database SQL Certification, and EDB Postgres Certification. Each of them assesses skills related to working with specific databases and SQL.
Q: How much does SQL certification cost?
A: The cost of SQL certification can vary depending on the level of certification and the company offering it. Typically, prices range from $100 to $350 or more. Retakes may incur additional fees.
Q: How do I prepare for SQL certification?
A: Preparation for SQL certification may involve studying official learning materials, taking online courses, completing practical exercises, and utilizing various resources. Learning platforms like Codefinity can provide you with the necessary skills to pass the exam successfully.
Курси по темі
Всі курсиБазовий
Relational Database and Normalization
This course delves into the theory behind relational databases. You'll learn what they are and see how they differ from non-relational databases. Throughout the course, we'll walk you through the ins and outs of database design and familiarize you with various types of relationships. Additionally, you'll explore the concepts of normalization and normal forms, equipping you with the knowledge to craft efficient and optimized databases.
Середній
Intermediate SQL
This course is perfect for those who already have a basic understanding of SQL and want to delve into more advanced concepts to craft more powerful queries. Throughout the course, you will become familiar with data grouping and filtering grouped data. You will also learn how to work with multiple tables simultaneously, including how to combine them. Additionally, you will explore different types of table joins and how to apply them in practice.
Базовий
Introduction to SQL
This course is for you if you are new to SQL, you want to quickly learn how to get the most out of SQL and you want to learn how to use SQL in your own application development.
Зміст