Inside the Optimizer: Constructing a Plan - Part 4
The final part in a series by Paul White exploring the internals of query optimization. Learn how
2010-09-16
5,646 reads
Paul White
- Twitter: @https://www.x.com/SQL_Kiwi
- Website: https://www.sql.kiwi
Inside the Optimizer: Constructing a Plan - Part 3
Join Paul White in part three of a four-part series exploring the internals of query optimization as he looks at the rules that are used to build the execution plan.
2010-09-14
6,542 reads
Inside the Optimizer: Constructing a Plan - Part 2
How does the query optimizer build an execution plan for your queries? Paul White shows is in part two of a four-part series exploring the internals of query optimization.
2010-09-09
7,900 reads
Inside the Optimizer: Constructing a Plan - Part 1
Part one of a four-part series exploring the internals of query optimization from T-SQL guru, Paul White.
2010-09-07
12,955 reads
Optimising Server-Side Paging - Part II
The second part of this series compares four methods of obtaining the total number of rows in a paged data set.
2010-05-24
19,178 reads
2010-05-04
3,305 reads
Optimising Server-Side Paging - Part I
This article by Paul White presents an optimisation for paging through a wide data set.
2010-04-26
27,960 reads
2010-04-07
4,066 reads
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Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers