There are so many query languages, so why do we have to learn SQL?

Ans:

Because

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in simple words - if you want to get a job that has "data" word in the job role, you should learn SQL

except data entry

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  1. Widely Used: SQL is the most popular query language for managing and retrieving data in relational databases like MySQL, PostgreSQL, and SQL Server. Many companies rely on these databases.
  2. Standardized: SQL is a standardized language, meaning you can apply it to different database systems with little modification.
  3. Foundational: Understanding SQL gives you a strong base for learning other query languages. The logic of SQL helps in learning things like NoSQL (for unstructured data).
  4. In-Demand Skill: Many data jobs require SQL knowledge. Data analysts, data engineers, and scientists often use SQL to extract and analyze data.

While there are other query languages, SQL is essential because of its wide use and practicality.