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In today’s data-driven world, SQL (Structured Query Language) skills are becoming increasingly essential, no matter what your role in an organization. There are two primary routes to learn SQL: self-study and formal education. This article will provide insights on both methods with examples of SQL code for better understanding.
Self-Study
Self-study is often times the most accessible and flexible way to learn SQL. There are a plethora of resources available online including tutorials, videos, and practice databases. With the self-study method, individuals have the freedom to learn at their own pace, at a time that suits them.
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-- Example of a SQL SELECT statement SELECT firstName, lastName FROM Employees WHERE city = 'New York'; |
Formal Education
Formal education includes taking a course at a university or a training program offered by a professional development provider. This approach provides a structured learning path and the benefit of clear feedback and guidance from an experienced course instructor.
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-- Example of SQL CREATE TABLE statement CREATE TABLE Students ( studentID int, studentName varchar(255), studentAge int, studentAddress varchar(255), primary key (studentID)); |
Which One Is Right for You?
Both approaches offer their own set of benefits, and the right approach largely depends on one’s learning style and resources at their disposal. Some people find self-study more appealing because it allows them to set their own pace and it is often free. Others prefer formal education because of the mentorship provided and the opportunity to ask questions and receive direct feedback.
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-- Example of SQL JOIN statement SELECT Orders.OrderID, Customers.CustomerName FROM Orders INNER JOIN Customers ON Orders.CustomerID = Customers.CustomerID; |
Conclusion
Whether through self-study or formal education, learning SQL is a valuable investment in your career. The important thing is that you are learning and progressing in your data understanding. Happy querying!
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-- Example of SQL UPDATE statement UPDATE Employees SET city = 'Los Angeles' WHERE city = 'San Francisco'; |