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SQL Data Query Language (DQL) Basics by amirmaria796 is a document available to read on EtoBox.
What is SQL Data Query Language (DQL) Basics about?
This document provides an overview of SQL Data Query Language (DQL) commands, focusing on how to retrieve data from database tables using SELECT statements. It includes syntax for fetching single and multiple columns, using DISTINCT for unique records, and counting rows with various conditions. Additionally, it outlines practice questions for applying these SQL concepts in real scenarios.
- Author
- amirmaria796
- Language
- EN