January 2019
Beginner to intermediate
670 pages
18h 32m
English
book
Tableau 2019.x Cookbook
by Dmitry Anoshin, Teodora Matic, Slaven Bogdanovic, Tania Lincoln, Dmitrii Shirokov
Content preview from Tableau 2019.x Cookbook
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
How to do it…
Let's create a Tableau workbook based on semi-structured data. At the Snowflake sample database we have a table HOURLY_16_TOTAL with 392 mln rows and 322 GB. This dataset keeps the last four days of hourly weather forecasts for 20,000+ cities.
- Create a new Tableau data source with a Snowflake connection:
- Warehouse: COMPUTE_WH
- Database: SNOWFLAKE_SAMPLE_DATA
- Schema: WEATHER
- Drag and drop custom SQL element and use this query, that will parse the VARIANT data type, as follows:
select (V:main.temp_max - 273.15)::FLOAT * 1.8000 + 32.00 as temp_max_far, (V:main.temp_min - 273.15)::FLOAT * 1.8000 + 32.00 as temp_min_far, cast(V:time as timestamp) time, V:city.coord.lat::FLOAT lat, V:city.coord.lon::FLOAT lon, v:city.name::VARCHAR, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.