SQLServerCentral Article

Recursive Queries in SQL:1999 and SQL Server 2005

How many of you have written resursive queries in SQL? Or any language since school for that matter? Not many people write recusrive queries because of the complexity, the difficulty to understand how they work, and the chance for heap overflows. However, SQL Server 2005 implements Common Table Expressions and recursion in a way that is much easier to code and incorporates some safeguards. New author SQL Server MVP Frederic Brouard has written a fantastic article looking at resursive queries.

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Question of the Day

Multiple Values Inserted

I have this code on SQL Server 2022. What happens when it runs all at once?

DROP TABLE IF EXISTS dbo.Commission
GO
CREATE TABLE dbo.Commission
(id INT NOT NULL IDENTITY(1,1) CONSTRAINT CommissionPK PRIMARY KEY
, salesperson VARCHAR(20)
, commission VARCHAR(20)
)
GO
INSERT dbo.Commission
( salesperson, commission)
VALUES
( 'Brian', 12 ),
( 'Brian', 'None' )
GO
 

See possible answers