Vertica

Archive for the ‘Vertica “Dragline”’ Category

Connecting HP Vertica 7.x to Tableau Desktop 8.2

Connecting HP Vertica to Tableau Desktop from Vertica Systems on Vimeo.
Have you ever wanted to visualize your HP Vertica Analytics Platform with graphs, tables, maps, or other formats? The Tableau Desktop by Tableau Software visualization tool lets you do just that in a couple steps. Use the Tableau Desktop HP Vertica specific ODBC driver connector to access your data from HP Vertica and create different views for visual analysis. Watch this video to learn how to connect HP Vertica to Tableau Desktop using both the HP Vertica specific ODBC driver connector and the generic connector.

What’s New in Dragline (7.1.0): Resource Pool Routing

Resource Pool Routing from Vertica Systems on Vimeo.

HP Vertica 7.1.x introduces new features that allow you to dynamically reroute queries to secondary resource pools.

Use the new CASCADE TO parameter when creating or altering a resource pool to indicate a secondary resource pool to which queries can cascade and execute when they exceed the RUNTIMECAP of the pool on which they started running. This way, if a query exceeds its initial pool’s RUNTIMECAP, it can cascade to a designated secondary pool with a larger RUNTIMECAP instead of causing an error.

Because grant privileges are not considered on secondary pools, you can use this functionality to designate secondary resource pools where user queries can cascade to without giving users explicit permission to run queries on that pool.

Check out this video to learn more about dynamically rerouting queries.
For more information, see the documentation.

What’s New in Dragline (7.1.0): Projections with Expressions

Projections with Expressions Video

Projections with Expressions from Vertica Systems on Vimeo.

HP Vertica 7.1 introduces the ability to use expressions with projections.

When you create a projection, you now have the option to use an expression as a column definition. For example, you can declare a column that sums two variables. When you load data into a projection with expressions, HP Vertica automatically calculates the values according to the expressions and inserts the data into that new projection.
Once you create a projection with expressions, you can query the projection directly to access your pre-calculated data and eliminate resource-intensive computations at query time.

Watch this video to learn more about using expressions with projections.

Projections with Expressions documentation.

See also:
Live Aggregate Projections
Top-K Projections

What’s New in Dragline (7.1.0): Top-K Projections

Top-K Projections Video

Top K Projections from Vertica Systems on Vimeo.

HP Vertica 7.1 introduces Top-K projections. A Top-K projection is a type of live aggregate projection that returns the top k rows from a partition.

Top-K projections are useful when you want to retrieve the top rows from a group of frequently updated, aggregated data. For example, say you want to view a list of the 5 singers who have the most votes in a competition. This value will change every time a vote comes in. But since the data is aggregated as it is loaded into your table and Top-k projection, all you have to do is grab the top 5 rows to see the top 5 singers at any moment. Using a Top-k projection is more efficient than if you had to aggregate (count all the votes) every time you wanted to find the top 5 singers.

Check out this video to learn more about Top-k projections and stayed tuned for our next video ‘Projections with Expressions’.

Top-K Documentation

What’s New in Dragline (7.1.0): Live Aggregate Projections

Live Aggregate Projections Video

Live Aggregate Projections from Vertica Systems on Vimeo.

 

HP Vertica 7.1 introduces live aggregate projections. A live aggregate projection is a projection that contains one or more columns of data that have been aggregated from a table.

If you frequently query data that requires aggregation, you could benefit from using a live aggregate projection. Because data in your live aggregate projection is aggregated at load time, rather than at the time you run a query, you can save time and resources. On subsequent data loads, HP Vertica updates the table and loads the aggregated values into the live aggregate projection. If you query the live aggregate projection any time after that, you’ll not only see the same results you would if you queried the data from the table and then aggregated it, but you’ll also use less resources in the process.

Check out this video to learn more about Live Aggregate Projections. Stay tuned for our next video, ‘Top-K Projections’.

See Also:

 Live Aggregate Projections with HP Vertica

Live Aggregate Projection documentation

Smart Grid Solution Demo

What’s New in Dragline (7.1.0): Using HP Vertica Pulse

Using HP Vertica Pulse Video

Using Pulse from Vertica Systems on Vimeo.

In our previous video, we showed you how to install HP Vertica Pulse, our add-on sentiment analysis package that allows you to analyze and extract the sentiment from text.

Take a look at this video to learn how to use and tune HP Vertica Pulse to work for your specific business needs.

You can download HP Vertica Pulse as an add-on package for your Enterprise Edition of HP Vertica at my.vertica.com.

HP Vertica Pulse documentation.

What’s New in Dragline (7.1.0): Installing HP Vertica Pulse

Installing HP Vertica Pulse Video

Installing Pulse from Vertica Systems on Vimeo.

HP Vertica 7.1.0 introduces the general availability of HP Vertica Pulse, our add-on sentiment analysis package for HP Vertica. Pulse provides a suite of functions that allow you to analyze and extract the sentiment from text, directly from your HP Vertica database. For example, you can use HP Vertica Pulse to analyze sentiment from Tweets or online product reviews to get a feel for how satisfied your customers are about your products or services.

HP Vertica Pulse automatically discovers attributes included in text and scores them using a built-in system dictionary. You can tune user-dictionaries to detect certain words or phrases, to determine how words are scored, and to filter out attributes that are of no interest to you. Because of this flexibility, you can tune HP Vertica Pulse to work for your specific business needs.

Currently, HP Vertica Pulse allows you to analyze English language text only. You can download HP Vertica Pulse as an add-on package for your Enterprise Edition or as a trial for your Community Edition, from my.vertica.com. Additionally, the Innovations section of the HP Vertica Marketplace offers a beta version of Pulse for Spanish only. Take a look at this video to learn how to install Pulse and stay tuned for our next video, ‘Using Pulse’.

HP Vertica Pulse documentation.

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