Introduction While working on my hospital dataset, I realised that SQL is not just about retrieving data. It can also help me compare hospital visits, bring information from different tables together and answer questions that may support reporting and decision making. In this article, I cover four SQL concepts I have been practising: window... Weiterlesen: Exploring Hospital Data: Window Functions, Joins, CTEs and Subqueries
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Exploring Hospital Data: Window Functions, Joins, CTEs and Subqueries
Introduction While working on my hospital dataset, I realised that SQL is not just about retrieving data. It can also help me compare hospital visits, bring…
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