SQL Update Statement with Join in SQL Server vs Oracle vs PostgreSQL
In this article we look at the different SQL syntax you need to use when updating data when joining tables for SQL Server, Oracle and PostgreSQL.
2021-01-29
SQL Server
SQL Server interview questions for experienced developers
SQL Server tech interview questions must be well crafted to make sure the candidate actually knows the topic. In this article, Sergey Gigoyan provides his favorite questions for interviewing SQL Server developers.
2021-01-27
Is Tempdb Causing a Bottleneck?
One of your SQL Server instance shows a major dip in performance or throughput, affecting all the user databases. You notice that the slow interludes coincide, as if orchestrated. On investigation, it appears that several transactions running over that period were using a lot of space in tempdb. However, which of them, if any, are causing the tempdb bottleneck, and why?
2021-01-26
Create SQL Server Graphics with ggplot2 and R Services
Learn how to create charts and graphs with R and how you can use R code in SSMS to generate and save graphs to an external file.
2021-01-26
Power Query or SQL Server? Which, when and why
When it comes to developing a Power BI report, we can use it for accessing data, transforming the data, and turning the data into information using visuals. With no doubt Power BI can do the job from beginning to end. Now, this is not the only, nor necessarily the best, tool for all the steps […]
2021-01-25
17,122 reads
Heaps in SQL Server: Part 4 PFS contention
When inserting rows into a heap, SQL Server must sometimes update the PFS page which can PFS contention and affect performance. In this article, Uwe Ricken demonstrates how to measure PFS contention.
2021-01-25
Power BI Merge Queries and Append Queries
In this tip we will cover how to use merge and append in Power BI to add additional data to a dataset that can then be used in reports and visuals
2021-01-22
Gitflow Workflow Feature Branching for SQL Database Projects
Learn how to use Gitflow workflow to meet the needs of developing new database related features and how to deploy these database changes.
2021-01-21
How to Batch Updates A Few Thousand Rows at a Time
In this post, Brent explains how to use a combination of two separate topics that he has blogged about recently.
2021-01-20
SQL Server Monitoring for all Availability Groups
In this article we present a PowerShell script that can help you monitor all of your SQL Server Availability Groups in your environment.
2021-01-18
Blogs
Blog a Day – Day 1: History of AI
By Vinay Thakur
it has been a year since i have not written much on the blog...
A New Word: on tenderhooks
By Steve Jones
on tenderhooks – adj. feeling the primal satisfaction of being needed by someone, which...
Ramblings about data communities and your contributions, no excuses
By DataOnWheels
I have been active in the data community throughout my career. I have met...
Forums
A Quick Restore
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Guarding Against SQL Injection at the Database Layer (SQL Server)
Comments posted to this topic are about the item Guarding Against SQL Injection at...
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