It is awkward to do 'Graph databases' in SQL to explore the sort of relationships and memberships in social networks because equivalence relations are classes (a set of sets) rather than sets. However one can explore graphs in SQL if the relationship has all three of the mathematical properties needed for an equivalence relationship.
2014-08-08
9,485 reads
Joe Celko & Chris Date guest as the sinister Relational Police in this new DBA Team adventure. Can the DBA Team save another doomed database? Find out.
2014-08-07
11,971 reads
Encryption brings data into a state which cannot be interpreted by anyone who does not have access to the decryption key, password, or certificates. Hashing brings a string of characters of arbitrary size into a usually shorter fixed-length value or key. Here's how to get started using it.
2014-08-06
10,471 reads
For date and time based testing, I use what I like to call "mock-time". The mock-time starts at what ever I set it to, but then advances along with the regular system clock. Andy Novick shows how that would work.
2014-08-05
9,532 reads
Technical support teams usually support familiar hardware and software configurations. Specialization in particular combinations of operating systems and database management software is common, and this allows some team members to gain in-depth experience that is extremely valuable in an enterprise IT setting. How has big data changed this paradigm?
2014-08-04
10,972 reads
Mubin M. Shaikh outlines how to create SSRS Report on SSAS OLAP Cube. If you don't have much prior knowledge of SSRS, just follow the steps and to have your first report ready on OLAP Cube.
2014-08-01
12,428 reads
Test-Driven Development (TDD) has a misleading name, because the objective is to design and specify that the system you are developing behaves in the ways that the customer expects, and to prove that it does so for the lifetime of the system. Michael Sorens starts an introduction to TDD that is more of a journey in six parts.
2014-07-31
9,842 reads
One option to get notified when TempDB grows is to create a SQL Alert to fire a SQL Agent Job that will automatically send an email alerting the DBA when the Tempdb reaches a specific file size. This tip explains how to set it up.
2014-07-30
10,602 reads
Here are seven practical tips for any 'accidental DBA' or developer, faced with having to deploy an upgrade to a database live to production, in a development environment that is in the early stages of getting the database code “house in order".
2014-07-29
10,764 reads
In this article, we’ll be focusing on the different ways you can build with a Cloud Service, and what exactly happens in terms of virtual machines when you deploy your application.
2014-07-28
10,018 reads
If you work with data pipelines, SQL, notebooks, or machine learning models, a Mac...
By ChrisJenkins
Have you been thinking about migrating your reporting to Microsoft Fabric or Snowflake but...
The Joyful Craftsmen has become the new owner of Revolt BI. The merger creates...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
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I have this code on SQL Server 2022. What happens when it runs all at once?
DROP TABLE IF EXISTS dbo.Commission GO CREATE TABLE dbo.Commission (id INT NOT NULL IDENTITY(1,1) CONSTRAINT CommissionPK PRIMARY KEY , salesperson VARCHAR(20) , commission VARCHAR(20) ) GO INSERT dbo.Commission ( salesperson, commission) VALUES ( 'Brian', 12 ), ( 'Brian', 'None' ) GOSee possible answers