SQL Server identity column
The SQL Server identity column is used to populate a column with incrementing numbers on insert. In this article, Greg Larsen explains how it works.
2021-09-13
Additional Articles
Oracle sequences – 12c features including “identity”
Oracle added several enhancements to the sequence object in version 12c, including an “identity” column feature. Jonathan Lewis explains how to work with these new features.
2021-09-10
Register Now For PASS Data Community Summit 2021
Registration is now open for our free and online data platform conference. Join 1000s of your data peers at PASS Data Community Summit and get access to up to 5 days of training, sessions, networking activities, and events. This year's program has been carefully designed to help you achieve your goals, wherever you are in your data career.
2021-09-10 (first published: 2021-09-03)
Disable or Enable All SQL Server Agent Jobs
In this article we look at a PowerShell script that you can use to centrally enable and disable any SQL Server Agent Job on any instance of SQL Server.
2021-09-08
One Flyway Migration Script for Diverse Database Systems
How to create a single set of SQL migration scripts for Flyway that we can use across multiple database systems, or for all regional variants of a database.
2021-09-08
Plotting in Python for Financial Time Series Data for Exponential Moving Averages
Learn how to plot a financial time series using SQL Server data and Python to reveal the value of exponential moving averages and make decisions about time series values.
2021-09-06
Sharing knowledge in communities of practice
Communities of practice bring people together to share ideas and learn from each other about a common interest. In this article, Robert Sheldon explains and gives some advice on starting them.
2021-09-06
Create, Populate, and Subset a Pandas Dataframe from a CSV File
In this article we demonstrate how to transfer data via a CSV file from a SQL Server database to a Pandas dataframe and then subset the dataframe in Python.
2021-09-03
Discovering What’s Changed by Flyway Migrations
A set of PowerShell cmdlets that will 'diff' two versions of a database and provide a high-level overview of the major database changes made by successive Flyway migrations. You can 'diff' a SQL Server database to the same one on PostgreSQL and find out which objects are the same and which are different.
2021-09-01
Join SQL Server tables where columns include NULL values
Dealing with NULL values especially when joining tables can become a challenge. Let's take a look at this issue and how this can be resolved.
2021-09-01
Blogs
TempDB Internals – What’s New (SQL Server 2016 to 2022)
By Vinay Thakur
I wrote about TempDB Internals and understand that Tempdb plays very important role on...
AI: Blog a Day – Day 2: Generative AI, Multimodal Systems, and Agent AI
By Vinay Thakur
continuing from Day 1 where we covered the history of AI and GPT family,...
Forums
A Quick Restore
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Guarding Against SQL Injection at the Database Layer (SQL Server)
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Ola Hallengren Index Optimize Maintenance can we have data compression = page
I have a quick question on Ola Hallengren Index Optimize Maintenance . Do we...
Question of the Day
A Quick Restore
While doing some testing of an application, I wanted to reset my environment after doing some testing with this code:
USE DNRTest BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO /* Bunch of stuff tested here */RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACEWhat happens if this runs, assuming the "bunch of stuff" isn't anything affecting the instance. See possible answers