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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

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SQL skills in Microsoft SQL Server and Postgre environments

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