Boost your SQL interview readiness with these 35 carefully selected SQL Interview Questions and Answers. Includes real-world ...

What is this book about? SQL has been the de facto standard when interacting with databases for decades and shows no signs of going away. Through the years, report developers or data wranglers have ...

What decisions do you need to make? Broadly speaking, these are the sequence of decisions and actions you will need. The rest of this document explains these in more detail. We need to be aware of all ...

Loading data from SQL Server using Power Query is fairly straightforward, and the basics are well-documented (see here for example). However there are a few advanced options, not all of which are ...

Here’s something that will Blow Your Mind if you’re a Power Query/M fan. Did you know that there’s a way you can get query folding to work if you’re using a native SQL query on SQL Server or Postgres ...

A query-expression is one or more table-expressions. Multiple table expressions are linked by set operators. The following figure illustrates the relationship between table-expressions and ...

Managing SQL Server across hybrid and multi-cloud environments has long posed a challenge for database administrators. With data sprawled across on-premises infrastructure, cloud platforms, and edge ...

We propose a generalization of the classical database query optimization problem: multi-objective parametric query (MPQ) optimization. MPQ compares alternative processing plans according to multiple ...