As a society, we have an unrealistic respect for data, especially if it has a decimal point somewhere and uses metric units. We who are in the business of data need to cultivate a renewed interest in the sceptical and rigorous science of statistics: it is too important to leave to 'Data Scientists'. If the data is wrong, or the way we analyse or report it is misleading, much of what we do is pointless.
This metric is a great general indicator of performance problems. High stall times indicate I/O problems, which can be attributed to busy physical disks or queries that return large data sets to the client.
This article demonstrates the use of custom code and cell expressions referencing that custom code to toggle the background color of groups of rows in an SSRS report based upon value-changes in one of the fields.
Managers, look away now. Patrick Index wants to get something off his chest...
Big data applications are now fairly commonplace in large organizations. It is, however, difficult to simply ‘drop’ these applications into an existing IT infrastructure and expect to run smoothly. In addition to energy and cooling requirements for new hardware to support the new big data application, other IT areas need to prepare.
DBCC is a mechanism that can protect you against corruptions causing substantial data loss in your database. If you use it.
The MidnightDBAs have developed a free reindexing solution to help DBAs perform maintenance on their instances. Read about the solution and attend their webinar.
What do Technical Architects (TAs) actually do when in a development role? Are they just senior developers 'pushed upstairs' into a management role? Is there a clear distinction between a TA and a product, or project, manager? In an increasingly automated and joined up development environment, the role is important, varied and wide-ranging; as Grzegorz Strzelecki explains.
If you changed your domain and have lost control over the SQL server or have been blocked from logging in , this article talks about it
Over the years the page size in SQL Server has changed, growing larger to fit larger data sets. However not all functions have been modified to work with larger page sizes. Or even exceed them. Steve Jones wonders if it's time to increase the page size.
By Steve Jones
Thanks for attending my sessions. Resources below: Slides: Using Data API Builder GitHub repo: ...
By Steve Jones
Thanks to everyone that attended my sessions at VS Live San Diego yesterday. It...
By Steve Jones
I was creating a question on sp_readerrorlog and realized that this procedure is different...
When I run my query from DW, which uses a linked server, it times...
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
Comments posted to this topic are about the item The Disabled Index
I run this code on SQL Server 2022.
CREATE TABLE Drink
(
drinkid INT NOT NULL
CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
drinkname VARCHAR(20),
rating NUMERIC(2, 1)
)
GO
INSERT INTO Drink
(
drinkid,
drinkname,
rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result? See possible answers