In SQL Server 2005, a feature was introduced that was hardly noticed, but which might make a great difference to anyone doing queries involving temporal data. For anyone doing Data Warehousing, timetabling, or time-based pricing, this could speed up your queries considerably. Who better to introduce this than Query Optimizer expert, Fabiano Amorim?
2009-10-26
3,485 reads
Marcin Policht continues his discussion of implementing Reporting Services on SQL Server 2005 Express Edition. In this article, we will turn our attention to troubleshooting methods that can be employed to identify and resolve problems affecting reporting functionality and performance.
2009-10-26
2,719 reads
Join BI Architect Bill Pearson in this introduction to Partitions in Analysis Services 2008. Here we explore partitioning concepts and advantages, and look forward to hands-on practice with partitions in subsequent articles.
2009-10-23
3,760 reads
If you do not have a third party monitoring tool in place, the only way is to constantly monitor SQL Server. To do this without being overly intrusive, we need to rely on the SQL Server DMVs.
2009-10-23
5,101 reads
Everybody knows how to call stored procedures from a .NET application. Right? But then, how often do you see stored procedures used to their full advantage in database applications? William Brewer goes through some of the basics, but uses PowerShell as the example .NET application, and avoids all mention of Northwind or AdventureWorks!
2009-10-22
5,661 reads
The importance of correct configuration. Which default configuration options to change. Common mistakes.
2009-10-22
4,609 reads
Database Administrators can use the Transfer Jobs Task to transfer one or more SQL Server Agent Jobs between different SQL Server instances
2009-10-21
2,013 reads
Best-practice advice on software vs. coding, where to integrate, how to capture changed data, when to stage data, where to correct data and what latency levels to shoot for.
2009-10-20
4,926 reads
In the crusade to cut expenses, Data Centres (and IT Infrastructure) are now coming under scrutiny as a possible source of savings. Half-informed executives now rally behind the cry of "Virtualization!", but virtualization is only part of the story - The tip of the consolidation iceberg - and it might not actually save you as much as you think. Thomas LaRock takes us deeper.
2009-10-20
1,968 reads
Joe Celko explores the dangers of muddling correlation and causation, emphasises the importance of determining how likely it is that a correlation has occurred by chance, and gets stuck into calculating correlation coefficients in SQL. Along the way, Joe illustrates the consequences of leaping to the wrong conclusion from correlations with tales of Pop Dread.
2009-10-19
2,136 reads
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
I'm fairly certain I know the answer to this from digging into it yesterday,...
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
hi everyone I am not sure how to write the query that will produce...
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