I have worked on different SQL Server projects like to replace old applications' functionalities and have devised complex SQL Scripts of up to 51 columns of formatted, interconnected data, joining up to 15 different tables and 1 CTE, and ensuring concurrency issues are avoided by skillfully making use of row locking and isolation levels. Certified by Microsoft for passing their Querying SQL Server exam. See public URL for Microsoft Badge: https://www.youracclaim.com/badges/f4c16b47-2ddf-409c-a145-8aae42192c36