Hierarchies in SQL, Part II, the Sequel
In a followup to his first article on Hierarchies, Gus Gwynn takes a look at the performance of a few different methods of querying a hierarchy. Learn how the HierarchyID stacks up.
2012-08-21
7,988 reads
- Interests: Reading, movies, RPG (online and pen-and-paper)
Hierarchies in SQL
One very common structure that needs to be handled in T-SQL is the hierarchy. One of our prominent members of the community discusses how you can handle hierarchies in SQL Server.
2010-12-10 (first published: 2009-01-28)
33,787 reads
Audit Trails and Logging Part II
Continuing with Part II of his auditing series, Gsquared takes a look at active auditing techniques for your SQL Server.
2008-06-10
10,424 reads
Audit Trails and Logging Part I
Auditing becomes more important every day as new requirements for data access are implemented. New author Gsquared, well known in the forums, brings us a look at types of audits and some details on passive auditing techniques.
2008-06-09
14,289 reads
2008-06-06
4,087 reads
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Question of the Day
The Tightly Linked View
I try to run this code on SQL Server 2022. All the objects exist in the database.
CREATE OR ALTER VIEW OrderShipping
AS
SELECT cl.CityNameID,
cl.CityName,
o.OrderID,
o.Customer,
o.OrderDate,
o.CustomerID,
o.cityId
FROM dbo.CityList AS cl
INNER JOIN dbo.[Order] AS o ON o.cityId = cl.CityNameID
GO
CREATE OR ALTER FUNCTION GetShipCityForOrder
(
@OrderID INT
)
RETURNS VARCHAR(50)
WITH SCHEMABINDING
AS
BEGIN
DECLARE @city VARCHAR(50);
SELECT @city = os.CityName
FROM dbo.OrderShipping AS os
WHERE os.OrderID = @OrderID;
RETURN @city;
END;
go
What is the result? See possible answers