SQL-code

My past work in Microsoft SQL Server and Postgre environments.

• The Basics.sql file contains function like CREATE TABLE, INSER INTO+VALUES, SELECT+FROM, WHERE, GROUP BY+ORDER BY statements.

• In Intermediate.sql file, I played with functions like INNER/OUTER JOIN, UNION (ALL) operator, CASE WHEN statement, HAVING clause, UPDATING/DELETING, ALIASING, and PARTITION BY.

• In Advanced.sql file, I played with Common Table Expression (CTE), Temp tables, String functions, Stored procedures, and Subqueries.

Reference:

1. Alex the Analyst SQL Tutorials
2. SQL Cheat Sheet- Postgre. https://towardsdatascience.com/sql-cheat-sheet-776f8e3189fa?gi=dcb14aa9a054
3. W3 School. https://www.w3schools.com/sql/default.asp