Jan 11, 2019

Learning SQL Online

What Is SQL?

SQL, or structured query language, is used to communicate with relational databases. Because of its ease of development and portability, it's considered the go-to language for updating and retrieving data from a database, even though it's been around since the 1970s. Familiar SQL commands are delete, drop, insert, create, update, and select. You see SQL in a number of database management systems, such as Oracle and Microsoft SQL Server.

Who Uses SQL?

Many positions in the technology field use SQL at one point or another in their career training and job duties. According to Zippia, here are 10 career choices that require knowledge of SQL. Their annual salary ranges in the United States are calculated by LinkedIn:

  • Business analyst: $49,000 to $98,000
  • Senior software engineer: $85,000 to $158,000
  • SQL server database administrator: $64,000 to $120,000
  • Quality assurance tester: $25,000 to $74,000
  • NET developer: $52,000 to $100,000
  • Systems administrator: $45,000 to $94,000
  • Microsoft software engineer: $106,000 to $140,000
  • SQL server developer: $49,800 to $123,000
  • Quality assurance analyst: $38,000 to $85,000
  • Senior Oracle database administrator: $90,000 to $140,000

How Can You Learn SQL Online?

Udacity offers numerous nanodegree programs and free courses to help you learn SQL online. Udacity nanodegree programs prepare you to use your skills to start a new career or advance in the one you already have. You collaborate with other students online to create real-world projects and learn current, marketable skills. Here are some of Udacity's opportunities for learning SQL online:

Udacity Courses:

  • SQL for Data Analysis – Learn to use SQL to extract data, perform aggregations, conduct complex analyses, and write efficient SQL queries for a variety of data analysis tasks (approximately 4 weeks).
  • Intro to Relational Databases – Learn the basics of SQL and database design while also getting an introduction to Python. The goal of the course is to learn how to use a database to write code and safely store application data (approximately 4 weeks).
  • Database Systems Concepts and Designs – Learn how to apply SQL, along with a host of other tools, to create a major real-world project (approximately 16 weeks).
  • Udacity Nanodegree Programs:

  • Data Analyst – Use SQL along with Python and statistics to create data-driven solutions, make insights, and share critical findings based on analysis of data. The program takes about 4 months to complete when putting in 10 hours per week.
  • Programming for Data Science – This 3-month nanodegree program teaches you the fundamentals of SQL, Python, the terminal, and Git programming tools.
  • Business Analytics – Learn how to use SQL, Excel, and Tableau to collect, organize, and analyze data. These skills are applicable to many career fields across just about any industry. The program takes about 3 months to complete.