Posts Tagged ‘Snowflake’
Teaching a Snowflake SQL Class Remotely this Week.
Over the next two days, I am teaching Snowflake SQL remotely to Ivy League students. I have taught close to 1,000 SQL classes over the past 30 years, and I have written over 75 books covering SQL on every database platform. I have never seen SQL so robust as I have with Snowflake. Almost every…
Read MoreMove data to Snowflake for FREE
The Ides of March is best known as the date on which Julius Caesar was assassinated at the Theatre of Pompey by members of the Senate in 44 BC. I think that 2020 is the year that we make the Ides of March a good thing. During March, I am going to allow you to migrate and move any amount of data to Snowflake for FREE.
Read MoreSnowflake Analytics – Part 11 Cume_Dist
I can teach you Snowflake analytics! Today we are going to learn about Cume_Dist. Cume_Dist returns the cumulative distribution of a value within a set of values. It represents the number of rows with values less than or equal to that row’s value divided by the total number of rows. The returned value of the CUME_DIST function is greater than zero and less than or equal one.
Read MoreSnowflake Analytics – Part 10 Nth_Value
I can teach you Snowflake analytics! Today we are going to learn about Nth_Value. The Nth_Value of Snowflake returns the nth value (up to 1000) within an ordered group of values.
Read MoreSnowflake Analytics – Part 9 Ntile
I can teach you Snowflake analytics! Today we are going to learn about Ntile. Each Ntile partition is assigned a number starting at one increasing to a value that is up to the Ntile partition number specified. So, with a Ntile of 4, the partitions are 1 through 4. Then, all the rows are distributed as evenly as possible into each partition from highest to lowest values. Normally, extra rows with the lowest value begin back in the lowest numbered partitions.
Read MoreSnowflake Analytics – Part 8 ListAgg
I can teach you Snowflake analytics! I will bet you have never seen a listagg analytic! Some major companies use the listagg analytic for their email marketing campaigns. They cleverly find out the last three web pages the customer went to on their website, and then they send them a customized email offering sales on the products they were viewing last. Let me show you exactly how it works.
Read MoreSnowflake Analytics – Part 7 – Lag
I can teach you Snowflake analytics! I have never seen a database do analytics better than Snowflake. Last week we taught you Lead, and this week we are teaching you Lag. You use a Lead to place the value from the next row on the current line of the answer set. You can then see today’s value, and on the same line, see tomorrow’s value. You do the opposite for the Lag. You can see today’s value, and on the same line, see yesterday’s value.
Read MoreSnowflake Analytics – Part 6 – Lead
I can teach you Snowflake analytics! I have never seen a database do analytics better than Snowflake. This week we are working on the Lead. You use a Lead to place the value from the next row on the current line of the answer set. You can then see today’s value, and on the same line, see tomorrow’s value.
Read MoreSnowflake Analytics – Part 5 – MDIFF
I can teach you analytics! I have never seen a database do analytics better than Snowflake. This week we are working on the Moving Difference, which is interchangeable with MDIFF. You use a Moving Difference (MAVG) to compare the difference between the value from two different rows. For example, you can see your Daily_Sales from this Monday, and then see the difference between the Daily_Sales from last Monday.
Read MoreSnowflake Analytics – Part 4 – MAVG
I can teach you analytics! I have never seen a database do analytics better than Snowflake. This week we are working on the Moving Average, which is interchangeable with the word MAVG. You use a Moving Average (MAVG) to look for trends. A MAVG shows you the AVG of values in a moving window, which means a certain amount of rows. If the moving window is a three, then the MAVG calculates the AVG for the values for three rows. You can then see trends by analyzing which results were higher and which were lower.
Read MoreSnowflake Analytics – Part 3 – CSUM
I can teach you analytics! I have never seen a database do analytics better than Snowflake. This week we are working on the Cumulative Sum, which is interchangeable with the word CSUM. You use a Cumulative Sum (CSUM) to get a running total with subtotals and grand totals.
Read MoreNexus – 1,000 Features on 1,000 Databases – Pivot
Its the data gods that say, “Go Forth and Pivot”. The Nexus has 1,000 features on 1,000 different database platforms, and feature number 942 is pivoting. Business users and senior management love to see a pivot report, especially when it has sum totals, subtotals, and horizontal and vertical grand totals.
Read MoreSnowflake Analytics – Part 1
I can teach you analytics! I have never seen a database do analytics better than Snowflake. These analytic lessons are the perfect opportunity for you to learn analytics like the back of your hand. If you want your career stock to soar, then invest in yourself and learn these analytic lessons. You are about…
Read MoreSnowflake – The Hottest Company on the Cloud
Snowflake is the hottest company on the cloud. Find out why their unique architecture and cost structure will be the next paradigm shift in cloud computing.
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