Introduction to XML DML (Part 1) - Using the modify() method: insert
This is the first part of a 3 part blog which will attempt to show some different ways of how...
2012-01-16
15,927 reads
SQL Server Rocks!
Revised: Difference between collation SQL_Latin1_General_CP1_CI_AS and Latin1_General_CI_AS
This is a revised post of an original article that I first published in December. Even though I thought that...
2012-01-09
247,699 reads
Retrieving position() value of node by using XQuery alone
You can only use the position() function within an xquery predicate and can't use it to return the position value...
2011-12-28
6,586 reads
FOR XML PATH using node tests in column aliases
I've used SQL to generate countless blobs of xml over the years and one feature that I have come to...
2011-12-20 (first published: 2011-12-15)
8,743 reads
Finding orphaned database users
Database users can become orphaned for a few reasons. For example, a database restore to another instance or deleting the...
2011-10-29
1,604 reads
Convert comma separated string to table and vice versa
I know that this subject has been blogged about numerous times but I thought I'd post an alternative way of...
2011-10-28
8,075 reads
Finding orphaned database users
Database users can become orphaned for a few reasons. For example, a database restore to another instance or deleting the...
2011-10-20
21,467 reads
Simple XML exist performance enhancement
I came across this really simple best practice from BOL for the xml method exist which when used will give...
2011-10-17
1,932 reads
Denali
Is all set to be officially known as SQL 2012 and will be finally released in....... 2012!
Announced at the PASS...
2011-10-15
731 reads
SQLBits9
SQLBits9 – “Query across the Mersey” was held in the majestic Adelphi hotel. This was my first SQLBits experience and was...
2011-10-10
887 reads
Blogs
Control Flow Restartability in Azure Data Factory
I presented at SQL Saturday Pittshburgh this past week about populating Your data warehouse...
Monday Monitor Tips: Knowing Your RPO
By Steve Jones
A customer was asking recently about the RPO for their estate, and I showed...
Webinar tomorrow: The Role of Databases in the Era of AI
By Steve Jones
I’m hosting a webinar tomorrow with Rie Merritt from Microsoft. We’ll be talking about...
Forums
Table Partitioning SQL server 2022
Hi All, I am currently testing the Table Partitioning to implement in SQL server...
STRING_AGG's behavior
Comments posted to this topic are about the item STRING_AGG's behavior
The Role of Databases in the Era of AI
Comments posted to this topic are about the item The Role of Databases in...
Question of the Day
STRING_AGG's behavior
Executing the following script (Sql Server 2022), you get the table t0 with 10 rows:
CREATE TABLE t0
( id INT PRIMARY KEY
, field1 VARCHAR(1000)
, field2 VARCHAR(MAX));
INSERT INTO t0
SELECT
gs.value
, REPLICATE ('X', 1000)
, REPLICATE ('Y', 1000)
FROM generate_series(1, 10, 1) gs;
GOWhat happens if you execute the following statements?
select STRING_AGG(field1, ';') within group (order by id) from t0;
select STRING_AGG(field2, ';') within group (order by id) from t0;