Performance Tuning – Over the Top Biz Logic
This month, Robert Pearl is helping to host a Performance Story contest. The contest is being sponsored by Safe Peak, and you can see more about it – here....
2011-09-19
9 reads
Jason Brimhall
Performance Tuning – Over the Top Biz Logic
This month, Robert Pearl is helping to host a Performance Story contest. The contest is being sponsored by Safe Peak,...
2011-09-19
1,781 reads
2011-09-19
3,114 reads
Beyonders
It has been a looooong time since I wrote a little book review. It’s nice to take time out with a little fantasy to ease and please the brain....
2011-09-16
5 reads
Beyonders
It has been a looooong time since I wrote a little book review. It’s nice to take time out with...
2011-09-16
556 reads
What Happens in Vegas…
…Need not Stay in Vegas Coming to Las Vegas in 2012 is an event many have been waiting for. Those that have been waiting for this event are the...
2011-09-14
10 reads
What Happens in Vegas…
…Need not Stay in Vegas
Coming to Las Vegas in 2012 is an event many have been waiting for. Those that...
2011-09-14
751 reads
T-SQL Tuesday #22 – Data Presentation
Data Presentation is not just about the look of a report. Data Presentation involves performance, accuracy, display and the business requirements. By giving proper attention to each of these...
2011-09-13
10 reads
T-SQL Tuesday #22 – Data Presentation
Tuesday is upon us. It also happens to be the second Tuesday of the month and you know what that...
2011-09-13
679 reads
Hustle and Bustle to Kick off September
September is kicking off with a boom for me. In one week, it seems I will be here, there and everywhere. Between SQL, PASS, Family, and User Group –...
2011-09-07
6 reads
Blogs
The Book of Redgate: Profits
By Steve Jones
Redgate is a for-profit company. We look to make money by building and selling...
Stop Using Pandas for Aggregations — Try DuckDB Instead
If you've ever loaded a 2 GB CSV into pandas just to run a...
Understanding Fabric Ontology
By James Serra
What problem is Fabric Ontology trying to solve? For years, most data conversations have...
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The New Software Team
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Database Mail in SQL Server 2022
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The string_agg function
Comments posted to this topic are about the item The string_agg function
Question of the Day
The string_agg function
We create the following table and then insert some records in it:
create table t1 ( id int primary key, category char(1) not null, product varchar(50) ); insert into t1 values (1, 'A', 'Product 1'), (2, 'A', 'Product 2'), (3, 'A', 'Product 3'), (4, 'B', 'Product 4'), (5, 'B', 'Product 5');What happens if we execute the following query in both Sql Server and PostgreSQL?
select id,
category,
string_agg(product, ';')
over (partition by category order by id
rows between unbounded preceding and unbounded following) as stragg
from t1; See possible answers