记录一下此前未用过的CUBE和ROLLUP功能，便于日后查阅使用。 1、 Rollup 的处理机制是在完成基础数据汇总后，按从右至左的顺序，依次移除字段列表末尾的一个字段，对剩余字段进行分组聚合，并将生成的小计结果写入结果表，被移除字段的位置以 null 值填充。

Photoshop cc 2015 tutorial in 2 parts showing how to create a 3-D Rubik’s Cube from Scratch! Royalty-Free Music provided by Beatsuite. High quality, copyright-free music for YouTube. Music track: ...

Learn how to fold a ringed modular origami cube using multiple paper sheets in this step-by-step tutorial! This project is fun, geometric, and makes a great desk decoration or handmade gift. No glue ...

In this Microsoft SQL Server and JDBC tutorial, you'll learn how to connect to a Microsoft SQL Server in Java using JDBC. The steps are relatively straightforward: Each database is different, so ...

The popularity of Microsoft Excel has never waned. Today, a whopping 1.1 billion users globally rely on it for multidimensional analysis in areas such as "scenario planning, supply chain optimization, ...

First developed in the 1970s, the Rubik’s Cube is one of the most popular mind puzzles worldwide. But, for most people, attempting to solve it can be very intimidating. However, using some basic ...

Abstract: The augmenting data in the contemporary world triggers Data Warehouses (OLAP-Online Analytical Processing Systems) to maintain tremendous amount of data. Apart from being a data repository, ...

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Part of the SQL Server 2022 blog series. Query Store is one of the most powerful database-scoped features in SQL Server for troubleshooting performance and improving the stability of your database ...

Online analytical processing (OLAP) databases are purpose-built for handling analytical queries. Analytical queries run on online transaction-processing (OLTP) databases often take a long time to ...