---
title: "SQL tops US employers' lists of in-demand tech skills"
publication: "DB Weekly"
issue: 282
published_at: "2019-11-29"
canonical_url: "https://dbweekly.com/issues/282"
---

This week's database news       

#282 — November 29, 2019 

[Read on the Web](https://dbweekly.com/issues/282)   

Database Weekly 

[![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60/v1575025098/zlizprvul6iws1ra6bcu.jpg)](https://aws.amazon.com/about-aws/whats-new/2019/11/amazon-athena-adds-support-for-running-sql-queries-across-relational-non-relational-object-custom-data-sources/)  

[Amazon Athena Adds Support for Running SQL Queries Across Multiple Sources](https://aws.amazon.com/about-aws/whats-new/2019/11/amazon-athena-adds-support-for-running-sql-queries-across-relational-non-relational-object-custom-data-sources/) — You can now run SQL queries across data stored in relational, non-relational, object, and custom data sources – so just imagine running a query joining S3, Redshift, CloudWatch, MySQL, DynamoDB, etc. Currently in preview in one AWS region for now. 

Amazon Web Services   

[SQL Performance Explained: The Database Tuning Book for Developers](https://sql-performance-explained.com/) — In honor of next Monday’s _Cyber Monday_ (a sort of digital answer to Black Friday, I guess), Markus has temporarily made his fabulous SQL performance book available for free for a few days. Your reading for this weekend is all set! 

Markus Winand   [![\](https://copm.s3.amazonaws.com/0a9c3575.png)](https://try.digitalocean.com/managed-databases-postgresql/?medium=display&utm_source=cooperpress&utm_campaign=MDB_Dev_Signup_Cold_DBWeekly11-29-19) 

[Managed PostgreSQL by DigitalOcean](https://try.digitalocean.com/managed-databases-postgresql/?medium=display&utm_source=cooperpress&utm_campaign=MDB_Dev_Signup_Cold_DBWeekly11-29-19) — Deploy a highly scalable PostgreSQL cluster with no admin overhead. 

DigitalOcean sponsor    

[QuestDB: A Performance-Focused 'NewSQL' Time-Series Database System](https://www.questdb.io/) — A new(ish) Apache-licensed, Java-built, ‘NewSQL’ relational database focused on fast time-series data processing. Works over HTTP, via a Web console, or even wire protocols (PostgreSQL and Influx). 

QuestDB Limited   

[SQL Tops the List Of Most In-Demand Tech Skills](https://spectrum.ieee.org/view-from-the-valley/at-work/tech-careers/sql-java-top-list-of-most-indemand-tech-skills) — SQL is the most in-demand tech skill by US employers claims the IEEE. 

IEEE Spectrum   

[You Can Now Bring Your Own Encryption Keys to Amazon DynamoDB](https://aws.amazon.com/blogs/database/bring-your-own-encryption-keys-to-amazon-dynamodb/) — DynamoDB has introduced support for customer managed customer master keys (CMKs) to encrypt DynamoDB data, a.k.a. BYOK. 

Amazon Web Services  

💻 Jobs  

[Full Stack Engineer](https://we.are.expensify.com/) — Expensify seeks a self-driven individual passionate about making code effective, with an understanding of algorithms and design patterns. 

Expensify   

[Find a Job Through Vettery](https://www.vettery.com/tech?utm_source=newsletter&utm_medium=cooper-dbweekly&utm_term=tech&utm_content=grouped&utm_campaign=ad-88878) — Make a profile, name your salary, and connect with hiring managers from top employers. Vettery is completely free for job seekers. 

Vettery  

📒 Everything else 

[![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60/v1575025217/plhztthpl3xel803krsx.png)](https://www.youtube.com/watch?v=6DrTKf8Vwps)  

▶[The Most Popular Databases Between 2004 - 2019](https://www.youtube.com/watch?v=6DrTKf8Vwps) — An animated month-by-month view of the [TOPDB index](https://pypl.github.io/DB.html), a sort of database equivalent of the TIOBE index, that analyzes the popularity of database names on Google. 

YouTube   

[Auto Trader’s Tips for a 3-Step MongoDB Atlas Migration](https://www.mongodb.com/blog/post/auto-traders-tips-for-a-3step-atlas-migration) — Auto Trader’s Principal Database Engineer describes how they successfully migrated their databases to MongoDB’s _Atlas_ and Google Cloud Platform. 

Marissa Jasso (MongoDB, Inc.)   

[UUIDs are Popular, but Bad for Performance (in MySQL)](https://www.percona.com/blog/2019/11/22/uuids-are-popular-but-bad-for-performance-lets-discuss/) 

Yves Trudeau   

[eBook: Best Practices for Optimizing Postgres Query Performance](https://pganalyze.com/ebooks/optimizing-postgres-query-performance?utm_source=DBWeeklySecondary) — Learn how to get a 3x performance improvement on your Postgres database and 500x reduced data loaded from disk in this free pganalyze eBook. 

pganalyze sponsor   

[Introducing Real-Time Anomaly Detection in Open Distro for Elasticsearch](https://aws.amazon.com/blogs/opensource/introducing-real-time-anomaly-detection-open-distro-for-elasticsearch/) — Amazon’s Elasticsearch and machine learning teams have open sourced and released anomaly detection plugins for their controversial Elasticsearch distribution. 

Amazon Web Services   

[SQL: A SQL-ish Language for Working with DynamoDB](https://github.com/stevearc/dql) — If you’re using DynamoDB but you _really_ like SQL, here’s an option. 

Steven Arcangeli   

▶[Processing Streaming Data with KSQL](https://www.youtube.com/watch?v=mJDbQ2gqo2g) 

Tim Berglund         

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