Within an instance of SQL Server, the database settings can have a direct effect on the database’s behavior, performance and availability. Sometimes, it is difficult to tie a symptom to a cause, so it is wise to routinely check and record these settings. Before you change the current setting, it pays to understand exactly what it means and the implications of any change.
2011-10-04
3,490 reads
Memory is a critical resource to Microsoft SQL Server workloads, especially in a virtualized environment where resources are shared and contention for shared resources can lead to negative impact on the workload. Windows Server 2008 R2 SP1 introduced Hyper-V Dynamic Memory, which enables virtual machines to make more efficient use of physical memory resources.
2011-10-03
2,927 reads
If you're starting to learn PowerShell and want to see how you can use it for common DBA tasks, this tip will show you how to create a basic PowerShell script to backup all your user databases.
2011-09-30
3,589 reads
You can save a lot of time by using the SSIS Troubleshooting tools. These enable you to work with reduced data samples, monitor row counts, use data viewers, configure error-handling and monitoring package execution. Although you can develop SSIS packages without them, it is so much easier once you're familiar with these tools.
2011-09-29
3,287 reads
One of the primary goals of business intelligence is to transform raw data into meaningful information, by combining its sources, discovering its dependencies and patterns, and using them to predict future trends.
2011-09-28
2,870 reads
How can you tell when your SQL Server instance was last started? In this tip we look at various methods of how to get the start time for a SQL Server instance.
2011-09-27
3,984 reads
Developers, by every natural instinct and training, strive to make their code reusable and generic. Dissuading them from doing so, in certain circumstances, is akin to trying to persuade a dog not to fetch a stick.
2011-09-26
3,888 reads
In this article you will see the detailed steps needed to implement the log shipping for large databases.
2011-09-23
2,889 reads
Temporary tables are used by every DB developer, but they're not likely to be too adventurous with their use, or exploit all their advantages. They can improve your code's performance and maintainability, but can be the source of grief to both developer and DBA if things go wrong and a process grinds away inexorably slowly. We asked Phil Factor for advice, thinking that it would be a simple explanation.
2011-09-22
6,511 reads
There are situations when you may need to remove HTML tags from your character string data. PowerShell will let you "clean" the string data and export the result to a .csv file in a single step.
2011-09-20
2,143 reads
By James Serra
I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...
By Vinay Thakur
Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...
Quite the title, so let me set the stage first. You have an Azure...
hi everyone I am not sure how to write the query that will produce...
Comments posted to this topic are about the item Rollback vs. Roll Forward
Comments posted to this topic are about the item Foreign Keys - Foes or...
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers