Virtual DataGals Kick Off

Soniya Shah, Information Developer
January 22, 2018

This blog post was authored by Crystal Farley (North). Last week, the virtual chapter of DataGals started with their kick off event: Come here, go anywhere! Joy King, VP of Product Management, Product Marketing, and Field Engagement for Vertica talked about her experience and journey in her career. Joy has been with the company for...

Vertica AWS Eon Mode Beta Provisioning with Management Console

Soniya Shah, Information Developer
January 18, 2018

This blog post was co-authored by Michael Hua and Soniya Shah. As of Vertica 9.0.x, you can operate your database in Eon Mode Beta. Doing this separates the computational processes from the storage layer of your database, enabling rapid scaling of resources to accommodate variable workloads. This post describes how you can provision a Vertica...

Vertica Quick Tip: Date Arithmetic

Soniya Shah, Information Developer
January 18, 2018

This blog post was authored by Jim Knicely. Date arithmetic in Vertica is extremely easy! What is today’s, yesterday’s and tomorrow’s date? But you’re not limited to whole days! You can also easily add and subtract partial days (i.e. hours, minutes and seconds)! Have Fun!

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Vertica Quick Tip: Avoid Using Functions on Very Large Data Sets

Soniya Shah, Information Developer
January 17, 2018

This blog post was authored by Jim Knicely. You can store billions and billions and billions (i.e. a lot) of records in your Vertica tables. When querying these large data sets, try to avoid using database functions like TO_DATE, TO_CHAR, NVL, etc. when unnecessary. A table named BIG_DATE_TABLE has 1 billion rows and a column...
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Eon Mode Beta Overview in 9.0.1

Soniya Shah, Information Developer
January 16, 2018

This blog post was authored by Soniya Shah. What is Eon Mode Beta? In Vertica 9.0.1, Eon Mode Beta, the separation of compute and storage, continues on Amazon Web Services S3. Eon Mode Beta was introduced in Vertica 9.0 to capitalize on cloud economics, while still enjoying the fast query processing for which Vertica is...

Vertica Quick Tip: Generating a Random Date

Soniya Shah, Information Developer
January 16, 2018

This blog post was authored by Jim Knicely. I can easily generate a random integer value using the Vertica built-in RANDOMINT function. For example: But what if I need a random date? Luckily in Vertica I can create my own SQL function for that! Example

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Vertica Test Results for Operating System Patches for Meltdown and Spectre Security Flaws

Sarah Lemaire, Manager, Vertica Documentation
January 11, 2018

For the latest Vertica update on the Meltdown and Spectre security flaws, read this blog: UPDATED: Vertica Test Results with Microcode Patches for the Meltdown and Spectre Security Flaws, published May 21, 2018. Vertica engineers have run performance tests using the operating system patches for the Meltdown and Spectre security flaws. Based on the results,...

Vertica Quick Tip: The LIMIT Analytic Function

Soniya Shah, Information Developer
January 11, 2018

This blog post was authored by Jim Knicely. Vertica contains an abundance of built-in SQL analytic functions. One of the lesser known but also one of the coolest is the LIMIT analytic function. Example Say I have the following table data: But I only want to see the latest test number for each date. For...

Vertica Quick Tip: How to Query for NaN Values

Soniya Shah, Information Developer
January 10, 2018

This blog post was authored by Jim Knicely. We're introducing a new series: Vertica Quick Tips! These tips are intended to give you concise information to help you get the most out of using Vertica. NaN (Not a Number) does not equal anything, not even another NaN. You can query for them using the predicate...

What’s New in Vertica 9.0.1: Machine Learning

Soniya Shah, Information Developer
January 9, 2018

This blog post was authored by Soniya Shah. Vertica 9.0.1 introduces new functionality that continues to match our goals for fast-paced development and enhancement of machine learning in Vertica. In this release, we introduce support for random forest for regression, a new statistical summary function, increased support for cross validation, and enhancements for data evaluation....

IMPORTANT: What you need to know about hardware security flaws

Soniya Shah, Information Developer
January 4, 2018

Vertica is aware of potential chip-level security flaws in recently discovered hardware bugs. Operating system vendors have developed patches to address these problems. Installing the patches could impact application performance. Vertica engineers are actively investigating how these patches might affect Vertica performance and will keep our customers informed. There is much speculation about the impact...

Authentication Methods for dbadmin

Soniya Shah, Information Developer
January 3, 2018

This blog post was authored by Sumeet Keswani. In Vertica, when you create a new database, there are no configured authentication methods. In this case, Vertica assumes that all users, including the dbadmin, have an implicit password authentication. Users can use this authentication method both for authenticating over a network interface and for over a...