Residual Predicate and "Number of Rows Read" in Execution Plans
What is Residual Predicate?
Lets say one gets a query to fine tune. While checking the execution plan, if there is...
2016-11-17 (first published: 2016-11-13)
4,642 reads
What does an Index mean to a Query
This post is about the importance of a right index to a query. The following simple query was considered. [crayon-5e96566159ca8644006533/] Even simple, this query was causing troubles on our production...
2016-11-11
21 reads
What does an Index mean to a Query
This post is about the importance of a right index to a query. The following simple query was considered. [crayon-5e81b52eda1f0195410103/] Even simple, this query was causing troubles on our production...
2016-11-11
10 reads
What does an Index mean to a Query
This post is about the importance of a right index to a query. The following simple query was considered.
SELECT
[GroupBy1].[A1] AS...
2016-11-11
267 reads
Why we need a PASS Sponsor Portal
Major sponsors in our space get hundreds of emails from us each year, all asking for money. Those are all...
2016-11-11
402 reads
How to deploy your SQL Server database to a remote server
CASE 1: you have direct access to both the SQL Server where the source database is and the SQL Server where the target database is.
First time deployment
Backup / restore...
2016-11-11
15 reads
How to deploy your SQL Server database to a remote server
CASE 1: you have direct access to both the SQL Server where the source database is and the SQL Server...
2016-11-11
2,140 reads
SSIS Catalog Project Versioning
If you’ve spent much time working with the SSIS catalog, you likely already know that the catalog is where all...
2016-11-15 (first published: 2016-11-11)
1,844 reads
Special Index - XML Index
I will be writing this series of articles for the Special Indexes in SQL Server. In this series we will...
2016-11-11
524 reads
What does an Index mean to a Query
This post is about the importance of a right index to a query. The following simple query was considered.<?query --SELECT [GroupBy1].[A1]...
2016-11-11
340 reads
Blogs
Architecting Zero Downtime Deployments–Day of Data Boston
By Steve Jones
Here are the resources for my talk at Day of Data Boston. Slides –...
The Book of Redgate:A Prehistory
By Steve Jones
I’ve covered the values in a number of previous posts on the Book of...
Evidence-bound: what AgentDBA will and won’t link
By Arun Sirpal
When the evidence names the database, it says so. When it doesn’t, it stops....
Forums
Split Large Queries in Athena with a Simple Modulo Trick
Comments posted to this topic are about the item Split Large Queries in Athena...
Finding Trailing Spaces
Comments posted to this topic are about the item Finding Trailing Spaces
Question of the Day
Finding Trailing Spaces
I have some data in a SQL Server 2025 database. It looks like this for the dbo.Customer table:
CustomerID CustomerName PreferredName 1 Steve Steve 2 Andy Andy 3 Brian Brian 4 Allan Allan 5 Devin Devin 6 Steve Steve 7 Sally SallyI want to detect which names have a single trailing space. The CustomerName is a varchar() and the PreferredName is a CHAR(). Does this query detect the problem rows?
SELECT
CustomerID,
CustomerName,
PreferredName
FROM Customer
WHERE CustomerName <> RTRIM(CustomerName)
OR PreferredName <> RTRIM(PreferredName); See possible answers