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SQL Basics & Introduction

What is SQL and Data Types

Understand what SQL is, the types of SQL commands (DDL, DML, DCL, TCL), essential SQL keywords, data types, and write your first basic queries with SELECT and WHERE.

7 min readBeginner

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Darshil Parmar
Written byFounder & Lead Instructor, Data Vidhya

Founder of Data Vidhya. 8+ years building production data pipelines. Trained 25,000+ data engineers across SQL, Spark, dbt, Airflow, and cloud platforms.

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