SQL is a tool that is widely used in the manipulation of data and featuring in the relational database. They are applied in querying, manipulating as well as reporting data and it is commonly used by ...

SQL Window functions are an advanced type of function in SQL. In this post, you will learn about what SQL window functions are and how they can be used or work. What are SQL window functions? SQL ...

本日は11月中旬にプレビューとなったAzure SQL trigger for Functionsを試してみましたのでその内容を書いてみたいと思います。 何らかのイベントによって処理をしたいといったことはシステム開発では度々起こり得ると思います。 APIを叩いたタイミング、Azureで ...

Aggregate functions help turn large datasets into simple summaries used across many fields. GROUP BY and HAVING allow structured grouping and filtering of data for clearer reports. Functions like ...

Window functions in SQL are analytical tools that compute values across a specific set of rows related to the current row in a query result. Unlike traditional aggregate functions that operate on the ...

This repository contains SQL scripts for analyzing ERP and CRM data from the gold layer of the data warehouse built in PostgreSQL-Data-Warehouse-Project. It covers both exploratory data analysis and ...