TSQL Tuesday #62: Invitation to Healthy SQL – Why Page Verify?
I don’t think anyone’s ever been happy to get a support call at 11pm on a Saturday night. However this...
2015-01-15 (first published: 2015-01-13)
6,307 reads
Kenneth Fisher
Discussing Security with Boris Hristov on SQLHangout #29
Over the years I’ve done a number of posts on various aspects of security. In fact the first thing I...
2015-01-12
532 reads
SQL Judo’s Monthly Challenge – January 2014 – Restore the Master
Every month SQL Judo (Russ Thomas) (b/t) challenges us to do his Monthly DBA Challenge. I’ve decided it would be...
2015-01-08 (first published: 2015-01-05)
6,256 reads
Finding the reason for the error “Subquery returned more than 1 value”
First this type of error is because a subquery returned more than one row when it wasn’t allowed to. In...
2015-01-07
1,281 reads
Finding a common AD group for a set of users.
I work for a large organization that over the last few years has been doing a LOT of reorgs. And...
2014-12-31 (first published: 2014-12-29)
5,874 reads
2014 in review
The WordPress.com stats helper monkeys prepared a 2014 annual report for this blog.
Here’s an excerpt:
The Louvre Museum has 8.5 million...
2014-12-30
924 reads
Do you want to build an Audit?
So I’ve written my second article for SQL Shack. This time instead of an overview of auditing options in sql...
2014-12-29
1,213 reads
‘Twas 4:45 Friday
‘Twas 4:45 Friday, and all through the office
not a creature was stirring, not even the bosses.
The code was checked in,...
2014-12-25 (first published: 2014-12-16)
5,355 reads
Playing with the log – VLF order while growing the log
The log file is one of those parts of SQL Server I find fascinating. For instance it is composed of...
2014-12-23 (first published: 2014-12-17)
5,842 reads
Does a clustered index sort the rows within a page
This is just something I was curious about. I ran my tests and got an answer and now I thought...
2014-12-15
1,366 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...
Session Materials for Techorama & DataGrillen 2026
I’ve uploaded the slides for my Techorama session Microsoft Fabric for Dummies and my...
Stop Using Pandas for Aggregations — Try DuckDB Instead
If you've ever loaded a 2 GB CSV into pandas just to run a...
Forums
Even When You Know What You're Doing, You Can Screw Up
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The New Software Team
Comments posted to this topic are about the item The New Software Team
Database Mail in SQL Server 2022
Comments posted to this topic are about the item Database Mail in SQL Server...
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