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SQL Cheat Sheet

Quickly reference SQL’s key commands, data types, DML, DDL, and common functions for efficient querying.
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Querying & SQL Fundamentals

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As a programmer, data scientist, or analyst, there's a high likelihood that you'll regularly encounter scenarios where you have to deal with enormous volumes of data. This data is often stored in relational databases, necessitating proficiency in a particular tool to interact with these databases. The Structured Query Language (SQL) is one of the most potent tools at your disposal for this purpose.


The following SQL cheat sheet is a more extended version, encompassing the most frequently used SQL objects, commands, as well as tips and tricks. It covers a wide range of areas, including data types, Data Manipulation Language (DML) and Data Definition Language (DDL) statements, aggregate functions, string and date functions, and subqueries. It’s designed to be a quick and handy reference that you can reach for whenever you are interacting with a relational database.

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