Split Large Queries in Athena with a Simple Modulo Trick
Learn how you might balance the load in Amazon Athena when you have large partition windows.
2026-10-05
1,696 reads
Data Warehouse
SQL Server Data Warehouse Concepts, Schema Design, and Implementation
A Data Warehouse acts as a centralized repository, is subject oriented, time variant and non-volatile repository. This article covers some concepts that will help you better design these structures.
2026-07-24
Data Warehouse Considerations - SCD Type 2 vs Overwrite Dimension Tables
How we handle data warehousing updates to dimension tables is crucial and this article covers Slowly Changing Dimensions versus overwriting tables.
2024-12-20
The Load of Real Time Data Warehouses
How much load do real time updates place on a data warehouse? Steve has a few thoughts on the analysis of the Amazon Redshift dataset, Redset.
2024-10-07
274 reads
Dimensional Modelling Case Study Part 1 - Age Group
Learn how you can handle dimensional modeling in a data warehouse when your data uses different categorization for ages.
2024-01-12
3,107 reads
Time-Series Data Analysis with Apache Druid
Learn the basics of Apache Druid and how it can be used to ingest data into a data lake.
2023-11-10
14,735 reads
Upserts in Amazon Redshift
This article discusses different approaches of Upserts (update+inserts) in Amazon Redshift
2023-08-09
30,573 reads
A Overview of Amazon Redshift
This article gives an overview of Amazon Redshift, the cloud data warehouse in AWS.
2023-07-24
25,758 reads
How do you secure sensitive data in a modern Data Warehouse?
In 2019 Canadian Broadcasting Corporation (CBC) news reported a massive data breach at the Desjardins Group, which is a Canadian financial service cooperative and the largest federation of credit unions in North America. The report indicated, a "malicious" employee copied sensitive personal information collected by Desjardins from their data warehouse. The data breach compromised the […]
2022-03-30
3,198 reads
Infrastructure Planning for a SQL Server Data Warehouse
In this tip we look at some things you should think about when planning for a SQL Server data warehouse.
2019-02-12
2,879 reads
Blogs
A New Word: Semaphorism
By Steve Jones
semaphorism – n. a conversational hint that you have something personal to say on...
SQL Server Linux Container Images Got Smaller: Image Size and Startup Time Across Cumulative Updates
This week I was at PASS Data Community Summit in Seattle, and I attended...
Using AI to Build Semantic Models, Ontologies, and Fabric Data Agents
By James Serra
(This is the third post in a three-part series on how AI is changing...
Forums
Pay for Performance
Comments posted to this topic are about the item Pay for Performance, which is...
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Question of the Day
Adding Bits I
I have a table, dbo.bittest, where I am testing an application response. This has this structure:
CREATE TABLE [dbo].[BitTest] ( [insertdate] [datetime] NULL CONSTRAINT [DF__BitTest__insertd__300F11AC] DEFAULT (getdate()), [a] [bit] NULL ) ON [PRIMARY] GOMy application runs this code:
INSERT dbo.BitTest
(
insertdate,
a
)
VALUES
(DEFAULT, 'true')
GO
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