Learn how to connect to Presto from R.
- If you use R regularly, you'll want to learn…how to connect to Presto from that platform as well.…And if you're new to it,…you can get set up pretty easily here at…http://cran.r-project.org.…You can find the download for the R platform…on Linux, Mac, and Windows.…Choose the platform you're on and find the latest package.…Once you do that, you'll get the download…and from the download, you double click it,…run through the installer--it's pretty straightforward.…And then, once that's done, you fire it up…and you will have the R console.…
Here's where I'm going to show you…how to connect to Presto from R.…First, we need to install a package…that will make the connection possible.…So we'll type "install.packages('RPresto'),…with a capital R and P,…select the mirror.…If you don't have the dependencies loaded,…it'll run through all those installers as well…and then once it's loaded up,…you need to type "library" to load the library we'll use,…which is DBI.…Then we need to create our connection.…I'll call it con…and we'll type "dbConnect", "RPresto",…
Data science expert Ben Sullins helps you get up to speed with Presto, and leverage it to accomplish a wide-range of data science and analytics tasks. He uses different interfaces with Presto—such as R and Tableau—and digs into the expressive SQL language that Presto offers for your analysis. At the end of this course, you'll know the key concepts of Presto and how to use them to take full advantage of your modern big data system.
- What does Presto do?
- Running Presto
- Connecting from Tableau and R
- Connecting to Hive, MySQL, and the local system
- Retrieving data
- Combining data sources
- Basic SQL functions
- Advanced SQL functions
- Migrating from Hive
Skill Level Intermediate
SQL: Data Reporting and Analysiswith Emma Saunders2h 16m Intermediate
Advanced SQL for Data Scientistswith Dan Sullivan1h 24m Advanced
1. Introducing Presto
2. Running Presto
4. SQL Syntax
5. Basic SQL functions
6. Advanced SQL Functions
7. Migrating from Hive
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