Data

Databases

• Database Systems: The Complete Book
• Mining of Massive Datasets
• Papakonstantinou, Y.; Gupta, A.; Haas, L. Capabilities-Based Query Rewriting in Mediator System

SQL

• Instant SQL Formatter
• Upwork - 12 Essential SQL interview questions and answers
• Mindmajix - SQL Server Interview Questions

Power BI, DAX and Tabular Model

• SQLBI
• Introducing DAX Video Course - SQLBI
• Articles - SQLBI
• A proposal for visual calculations in DAX - SQLBI
• Handling customers with the same name in Power BI - SQLBI
• Hiding future dates for calculations in DAX - SQLBI


• ALM Toolkit
• BISM Normalizer


• SQLServerCentral: DAX For SQL Folks: Part I- Intro to DAX, Power BI and Data Viz
• SQLServerCentral: DAX for SQL Folks: Part II - Translating SQL Queries to DAX Queries


• DAX Formatter by SQLBI


• Data Analysis Expressions (DAX) Reference - DAX | Microsoft Docs
• DAX overview - DAX | Microsoft Docs


• Expressions, values, and let expression - PowerQuery M | Microsoft Docs

Excel

• All the Best Microsoft Excel Keyboard Shortcuts
• Keyboard shortcuts in Excel - Office Support

Oracle DB

• Oracle Database Product News
• Ask Tom Home
• Oracle FAQ SQL Scripts and Code Exchange
• Oracle Underground Frequently Asked Questions
• Radoslav Rusinov's Blog
• ORACLE-BASE

Parallel Computing

• The Hadoop Ecosystem Table

Spark

• Apache Spark Tutorial
• How do I learn Apache Spark? - Quora
• First Steps with Spark - Screencast #1 | Apache Spark
• Resilient Distributed Datasets: A Fault-Tolerant Abstraction for In-Memory Cluster Computing | USENIX
• Spark Documentation Overview – Screencast #2 | Apache Spark