Day: July 4, 2020

Why modern applications demand polyglot database strategies

Commentary: Ready to move all your applications to NoSQL databases? It’s not that simple.

Image: Nuthawut Somsuk, Getty Images/iStockphoto

For someone who cut his teeth on relational databases at Oracle right out of college, Mark Porter sure seems happy to leave them behind. In announcing his new position as CTO at MongoDB, the company behind the eponymous document-based, distributed database, Porter took some shots at the relational world he’s left behind. 

This isn’t to suggest relational data is dead, or even limping. Instead, Porter’s ability to straddle the worlds of NoSQL (MongoDB) and SQL (Oracle) simply suggests that data is a lot more complicated than can fit on a bumper sticker, and we’re nowhere near being able to call it a “solved” problem.

SEE: How to build a successful developer career (free PDF) (TechRepublic)

A new world of data

When Porter started at Oracle (1988), MongoDB didn’t exist. Heck,

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Tesla is taking reservations for its Cybertruck in China – TechCrunch

Tesla has opened up reservations for its all-electric Cybertruck to customers in China, a move that will test the market’s appetite for a massive, futuristic truck.

The reservations page on Tesla’s China website was first posted in Reddit channel r/teslamotors by user u/aaronhry. Electrek also reported on the Reddit post.

The Cybertruck, which was unveiled in November at the Tesla Design Center in Hawthorne, Calif., isn’t expected to go into production until late 2022. But that hasn’t stopped thousands of U.S. consumers to plunk down a $100 refundable deposit for the truck. Just weeks after the official unveiling, Tesla CEO Elon Musk tweeted that there were 250,000 reservations for the vehicle.

Tesla is now testing potential interest among Chinese consumers.

It’s impossible to predict how many of these reservations — in China and the U.S. — will convert to actual sales. It will be more than a year

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How to make a graph in Google Sheets

Learn how to create and customize a visual display of your data in Google Sheets or use the =SPARKLINE function to make a mini chart in a spreadsheet cell.

Illustration: Andy Wolber / TechRepublic

For many, a glance at a graph can convey meaning in a way that a look at a long list of numbers cannot. A well-constructed chart may make it possible for a viewer to comprehend a trend, compare quantities, or understand relationships in the data displayed. 

As a collaborative, cloud-based app, Google Sheets lets you create charts collaboratively. You can work with other people each step of the way to enter data, select the cells to chart, experiment with different chart types, and refine the display to optimize chart readability.

SEE: Google Sheets: Tips and tricks (TechRepublic download)

For the greatest control over charts in Google Sheets, you’ll want to create and edit your charts with

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How to use Zoom’s advanced sharing options to share more than just your screen

Image: SARINYAPINNGAM, Getty Images/iStockphoto

If you use Zoom, you probably already know that you can share your screen, either a specific window or app, or the entire screen. But Zoom also offers advanced options for sharing more than just your screen. By tapping into these advanced options, you can share a portion of a screen. You can share just the audio and not the video from your computer. And if your system is outfitted with more than one camera, you can share content using that second camera. Here are the steps.

SEE: How to secure your zoom conference line from hackers (free PDF) (TechRepublic) 

In your Zoom meeting, open a file, document, or window for which you want to share a specific section or area. Click the Share Screen button. At the screen to select a window or application to share, click the section for Advanced. Select the first

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