Top 10 Cool Things I Like About Snowflake
September 14, 2018
Author: Kent Graziano
How to Use Snowflake, Snowflake Technology
I have now been with Snowflake Computing for a little over two months (my how time flies). In that time, I have run the demo, spoken at several trade shows, and written a few blogs posts. I have learned a ton about the product and what it means to be an Elastic Data Warehouse in the Cloud.
So for this post I am going to do a quick rundown of some of the coolest features I have learned about so far.
Once you execute a query, the result set will persist for 24 hours (so you can go back and check your work). It may seem minor to some, but it sure is convenient to be able to pull up the results from a previous query without having to execute the query a second time. Saves on time and processing. Read more
Again seems like a no brainer but very important. I had no real clear concept of how I would connect to a data warehouse in the cloud so this was good news. After getting my favorite data modeling tool, Oracle SQL Developer Data Modeler (SDDM), installed on my new Mac, I was able to configure it to connect to my Snowflake demo schema using JDBC and reverse engineer the design.
So why is this cool? It means that whatever BI or ETL tool you use today, if it can talk over JDBC, you can connect it to Snowflake. Read more
With UNDROP in Snowflake you can recover a table instantaneously with a single command:
UNDROP TABLE <tablename>
No need to reload last night’s backup to do the restore. No need to wait while all that data is pulled back in. It just happens!
Now that is a huge time (and life) saver. Read more
Even cooler than UNDROP is the fast clone feature.
The Snowflake CLONE command can create a clone of a table, a schema, or an entire database almost instantly. It took me barely a minute to create a clone of a 2TB database without using additional storage! And I am not a DBA, let alone a “cloud” DBA.
This means you can create multiple copies of production data without incurring additional storage costs. No need to have separate test/dev data sets.
Hence why I think it is way cool! Read more
During the first demo of Snowflake I attended (before I even applied for a job here), this one got my attention.
Using the knowledge and skills I already had with SQL, I could quickly learn to query JSON data, and join it to traditional tabular data in relational tables.
Wow – this looked like a great stepping stone into the world of “Big Data” without having to learn complex technologies like Hadoop, MapReduce, or Hive! Read more
Yes, I call that a very cool feature. And the fact that the JSON documents are stored in a table and optimized automatically in the background for MPP and columnar access. This gives you the ability to combine semi-structured and structured data, in one location. For further details check out my detailed 2 part blog here and here.
Another key feature in Snowflake, that is required to be called a relational data warehouse, is of course the ability to write standard SQL. More so, for data warehousing, is access to sophisticated analytic and windowing functions (e.g., lead, lag, rank, stddev, etc.).
Well Snowflake definitely has these. In fact we support everything you would expect including aggregation functions, nested virtual tables, subqueries, order by, and group by. This means it is fairly simple for your team to migrate your existing data warehouse technologies to Snowflake. Read more
The innovative, patent-pending, Multi-Cluster, Shared Data Architecture in Snowflake is beyond cool. The architecture consists of three layers; storage, compute, and cloud services. Each layer is decoupled from the other, each layer is independently scalable. This enables customers to scale resources as they are required, rather than pre-allocating resources for peak consumption. In my 30+ years working in IT, I have not seen anything like it. It is truly one of the advantages that comes from engineering the product, from the ground up, to take full advantage of the elasticity of the cloud. Read more
With this unique architecture, Snowflake can easily support multiple disparate workloads. Because of the separation of compute and storage, you can easily spin up separate Virtual Warehouses of different sizes to run your ELT processes, support BI report users, data scientists, and data miners. And it makes total sense to be able to keep disparate workloads separate, to avoid resource contention, rather than just saying we support “mixed” workloads.
And even better – no special skills or secret configuration settings are required to make this work. It is the way Snowflake is built by design. Nice! Read more
Security is a major concern for moving to the cloud. With Snowflake, your data is automatically encrypted by default. No setup, no configuration, no add-on costs for high security features.
It is just part of the service! To me that is a huge win. Read more
As a long time data architect, and not a DBA, this is my favorite part of Snowflake. I do not have to worry about my query performance at all. It is all handled “auto-magically” via meta data and an optimization engine in our cloud services layer. I just model, load, and query the data.
So, no indexes, no need to figure out partitions and partition keys, no need to pre-shard any data for distribution, and no need to remember to update statistics.
This feature, to me, is one of the most important when it comes to making Snowflake a zero management Data Warehouse as a Service offering. Read more
Well, that is the short list of my top 10 favorite features in Snowflake. Keep a look out for future posts in the coming weeks, to provide details on these and other key features of the Snowflake Elastic Data Warehouse.
Now check out this short intro video to Snowflake!
P.S. Keep an eye on my Twitter feed (@kentgraziano) and the Snowflake feed (@SnowflakeDB) for updates on all the action and activities here at Snowflake Computing. Watch for #BuiltForTheCloud and #DWaaS.