Help for DBAs Who Support SSIS…
SSIS Catalog Compare helps DBAs work with their SSIS project configurations and catalogs, deploying changes from environment to environment.
2017-06-19
1,129 reads
Andy Leonard
- Interests: SQL Server, Integration Services, Managing Technical Teams, Faith, Family, Farming.
Training: Zero to BIML
A four-day course aimed at BI developers who want to use Business Intelligence Markup Language (BIML) to generate SQL Server Integration Services packages.
2017-05-25
3,411 reads
Migrating SSIS Projects and Parameters, Part 1
In this first part to looking at deploying SSIS packages to new environments, Andy Leonard looks at a few options for migrating your work to a new instance.
2016-06-21
4,582 reads
Data Warehouse Development: Version 0
What do you do first when developing a data warehouse? MVP Andy Leonard brings us a look at the foundation he uses, which might surprise you.
2011-04-07
9,072 reads
An Example of Test-Driven Development, Part 5
The fifth installment of this fantastic series by MVP Andy Leonard looks at database versioning. Be sure to read this one to continue learning more about TDD.
2010-11-26 (first published: 2009-08-20)
10,323 reads
An Example of Test-Driven Development, Part 4
Continuing on with his testing series for T-SQL code, MVP Andy Leonard looks at deployment here.
2010-11-19 (first published: 2009-07-15)
8,894 reads
An Example of Test-Driven Development, Part 3
Andy Leonard continues on with his series on TDD. This time he performs some refactoring on his solution.
2010-11-12 (first published: 2009-07-13)
10,625 reads
An Example of Test-Driven Development, Part 2
In this next installment of his series on TDD, MVP Andy Leonard continues the development of his database.
2010-11-05 (first published: 2009-06-16)
16,598 reads
An Example of Test-Driven Development
Developing a database can be an trying experience, and it's ways good to see how someone else builds a design. In this new article, MVP Andy Leonard shows us how to build a database using test-driven development for a weather database.
2010-10-29 (first published: 2009-04-30)
28,298 reads
SSIS 101: Object Variables, ResultSets, and Foreach Loop Containers
SQL Server MVP and SSIS guru, Andy Leonard, discusses Integration Services and some of the tasks and containers that he uses quite often.
2010-02-05 (first published: 2008-08-21)
94,897 reads
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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;