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Showing posts with the label Amazon Redshift
Create A Lapsed Concept Based On Logic Across Every Row Per Id

Create A Lapsed Concept Based On Logic Across Every Row Per Id

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I am trying to get to a lapsed_date which is when there are >12 weeks (ie. 84 days) for a given … Read more Create A Lapsed Concept Based On Logic Across Every Row Per Id
Partitioning Data In Sql On-demand With Blob Storage As Data Source

Partitioning Data In Sql On-demand With Blob Storage As Data Source

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In Amazon Redshift there is a way to create a partition key when using your S3 bucket as a data sou… Read more Partitioning Data In Sql On-demand With Blob Storage As Data Source
Amazon Redshift Foreign Keys - Sort Or Interleaved Keys

Amazon Redshift Foreign Keys - Sort Or Interleaved Keys

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We plan to import OLTP Relational tables into AWS Redshift. The CustomerTransaction table joins to… Read more Amazon Redshift Foreign Keys - Sort Or Interleaved Keys
How To Fetch Records Using Vertical Columns In Amazon Redshift

How To Fetch Records Using Vertical Columns In Amazon Redshift

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I need to fetch records between the date range given in two columns. My Table structure is like: CR… Read more How To Fetch Records Using Vertical Columns In Amazon Redshift
Create A Query To Check If Any Column In A Table Is Null

Create A Query To Check If Any Column In A Table Is Null

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I have zero experience with SQL but am trying to learn how to validate tables. I am trying to see w… Read more Create A Query To Check If Any Column In A Table Is Null
Find Top 1000 Entries Along With Count And Rank From Table

Find Top 1000 Entries Along With Count And Rank From Table

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I have a table with around 30 billions rows in Redshift with following structure, userid itemid … Read more Find Top 1000 Entries Along With Count And Rank From Table