data catalogs

External Article

The Need for a Data Catalog

  • Article

In the event of a breach of personal data, any organization must produce proof that they understand what data they hold and where, and how it is being used, and that they have enforced the required standards for access control and security. To make all this possible, it is essential to build a complete model of the data and its lineage, and a data catalog is the first step in this process.

2020-01-14

External Article

Practical steps for end-to-end data protection

  • Article

If you plan to make production data available for development and test purposes, you'll need to understand which columns contain personal or sensitive data, create a data catalog to record those decisions, devise and implement a data masking, and then provision the sanitized database copies. Richard Macaskill show how to automate as much of this process as possible.

2019-08-02

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The Empty Aggregate

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Question of the Day

The Empty Aggregate

I have this table in a SQL Server 2025 database:

CREATE TABLE [dbo].[CustomerOrder]
(
[OrderID] [int] NULL,
[CustomerID] [int] NULL,
[total] [money] NULL
) ON [PRIMARY]
GO
What is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
       COUNT(total) AS count
FROM dbo.CustomerOrder;



See possible answers