GO statement breaks SSIS Execute SQL Task
I have lost an hour today trying to find a bug in my SSIS package, and it was so small...
2011-11-30
6,746 reads
NOT IN or IN?
I have been having a hard time believing my eyes when I noticed that these queries give different results:
1. select...
2011-09-27
742 reads
MDX Performance - burdens of IIF
I used to think naively that IIF is an innocent little function that can only do good and help me...
2011-02-16
3,109 reads
MDX Performance - burdens of IIF
I used to think naively that IIF is an innocent little function that can only do good and help me...
2011-02-11
3,057 reads
PARTITION BY clause works incorrectly when in nested select over large volumes of data
I have been witnessing a very strange behaviour of ROW_NUMBER() PARTITION BY clause in complex join and nested select or...
2010-11-03
2,719 reads
SSRS axe work: How to use fields from different Datasets in the same field Expression and Grouping in Report Builder 2.0?
Last week I was puzzled by one of my colleagues - he needed help in creating a Report Builder 2.0 SSRS...
2010-10-07
6,501 reads
SQL or MDX query trace in SSRS - trick of imagination or a real thing?
I sometimes have ghost memories - I remember some things that had never in fact happened. And I was wondering if ...
2010-09-03
2,456 reads
SQL or MDX query trace in SSRS - trick of imagination or a real thing?
I sometimes have ghost memories - I remember some things that had never in fact happened. And I was wondering if ...
2010-08-30
3,289 reads
SSRS Subscriptions failure - should we always listen to our DBA's?
During the configuration of one of the SSRS instances I have stumbled upon a problem with SSRS Subscription. Subscriptions were...
2010-08-04
1,005 reads
Blogs
Day 2 at PASS Data Community Summit 2024
By Steve Jones
I missed blogging yesterday as I was on stage/backstage for quite a bit of...
PASS Summit 2024 – Wednesday
By Brian Kelley
A common theme in the PASS Summits I've attended is community and that's definitely...
Taming Database Challenges: Insights from Redgate Keynote
By Chris Yates
I am excited to cover the Microsoft Keynote on Day 2: Redgate Keynote: Simplifying...
Forums
Deduplicating rows by choosing the row with the shortest string
Hello T-SQL experts I have a table containing team codes and descriptions. Unfortunately, many...
Unencrypted connections in Always on Availability Group
Hi, In my Always On Availability environment, I am seeing two encrypt_option values as...
Question of the Day
Using Outer Joins
I have this data in a SQL Server 2019 database:
Customer table CustomerID CustomerName 1 Steve 2 Andy 3 Brian 4 Allen 5 Devin 6 Sally OrderHeader table OrderID CustomerID OrderDate 1 1 2024-02-01 2 1 2024-03-01 3 3 2024-04-01 4 4 2024-05-01 6 4 2024-05-01 7 3 2024-06-07 8 2 2024-04-07I want a list of all customers and their order counts for a period of time, including zero orders. If I run this query, how many rows are returned?
SELECT c.CustomerName, COUNT(oh.OrderID) FROM dbo.Customer AS c LEFT JOIN dbo.OrderHeader AS oh ON oh.CustomerID = c.CustomerID WHERE oh.Orderdate > '2024/04/01' GROUP BY c.CustomerNameSee possible answers