# SQL

### **Resources**<br>

1. [**http://www.sqltutorial.org/sql-cheat-sheet/**](http://www.sqltutorial.org/sql-cheat-sheet/)
2. [**https://www.kdnuggets.com/2018/07/sql-cheat-sheet.html**](https://www.kdnuggets.com/2018/07/sql-cheat-sheet.html)
3. [**https://github.com/enochtangg/quick-SQL-cheatsheet**](https://github.com/enochtangg/quick-SQL-cheatsheet)
4. [**https://towardsdatascience.com/sql-cheat-sheet-for-interviews-6e5981fa797b**](https://towardsdatascience.com/sql-cheat-sheet-for-interviews-6e5981fa797b)
5. [**http://www.fbeedle.com/sql/029-6ch03.pdf**](http://www.fbeedle.com/sql/029-6ch03.pdf)
6. [**https://www.w3resource.com/slides/sql-joins-slide-presentation.php**](https://www.w3resource.com/slides/sql-joins-slide-presentation.php)

### Datatypes

1. TEXT
2. INTEGER
3. REAL
4. BLOB (It is generally used for holding binary data)

![](https://fra-07-47423.ide-proxy.ide.learn.co/notebooks/dsc-1-05-10-join-statements-online-ds-ft-100118/venn.png)