Introduction The sp_HorizontalTree procedure introduced here may be used to audit tables with dependent columns. A column is dependent on another if the meaning of the first column depends on the meaning of the second. For example, in a table containing accounting information, the meaning of a Fiscal Quarter column depends on the Fiscal Year to […]
2023-06-16
2,402 reads
Learn how to use the Plotly library to visualize time series data in Python in this step-by-step article.
2023-06-16
This article describes a simple technique that will allow you to use Flyway securely, even in cases where more than just the login credentials need to be protected. It uses a PowerShell technique that converts an encrypted Flyway configuration file into an array of parameters that Flyway can read just as if you were typing them in.
2023-06-16
Learn about the Kimball method for data warehouses and how you can get started building one.
2023-06-14
6,486 reads
This article looks at calculating prime numbers less than n with one query.
2023-06-14
7,064 reads
Ordinary PostgreSQL users often do not know that PostgreSQL configuration parameters exist, let alone what they are and what they mean. Some parameter tuning can improve the database performance, and we are usually talking about 10%, 20%, and in rare cases, up to 50% performance improvement.
2023-06-14
This article will show how to generate an HTML formatted report of your disk space.
2023-06-12
6,497 reads
If you are using SSDT for authoring, building, debugging, and publishing a database project, how do you change to, or preferably migrate towards, a Flyway-based database development? Flyway doesn't need to replace any code part of SSDT, but if allowed to manage every release candidate, it does allow for much cleaner branching, merging, and deployments.
2023-06-12
This article will cover how to create multiple relationships between the same tables in Power BI to build the data model you need.
2023-06-12
In this article you will learn how to use the COPY command in PostgreSQL to copy a database or a table.
2023-06-09
4,803 reads
By Steve Jones
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In the beginning, there was OLTP – Online Transaction Processing. Fast, reliable, and ruthlessly...
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Comments posted to this topic are about the item The Security of Old Tech
True or False: Tables with a SPARSE column consume more space than regular columns if most values are NOT NULL.
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