📚 Enlace a recursos de SQL

Author: imarranz

README.md

@@ -318,7 +318,8 @@ Usually, data has the following process:
 [SQL Cheat-Sheet for Data Science](https://medium.com/analytics-vidhya/sql-cheat-sheet-for-data-science-cf3005c0fb28)  
 [SQL Coding Best Practices for Writing Clean Code](https://towardsdatascience.com/sql-coding-best-practices-for-writing-clean-code-a1eca1cccb93)  
 [When Python meets SQL](https://medium.com/@jperezllorente/when-python-meets-sql-57b4d7ab2182)  
-[Best practices for writing SQL queries](https://medium.com/@abdelilah.moulida/best-practices-for-writing-sql-queries-7c20b1b9d21e)
+[Best practices for writing SQL queries](https://medium.com/@abdelilah.moulida/best-practices-for-writing-sql-queries-7c20b1b9d21e)  
+[7 SQL Queries You Should Know as Data Analyst](https://medium.com/@alfiramdhan/7-sql-queries-you-should-know-as-data-analyst-6a16602fffbe)
 
 #### SQLite