postgresql

External Article

Are PostgreSQL memory parameters magic?

  • Article

Ordinary PostgreSQL users often do not know that PostgreSQL configuration parameters exist, let alone what they are and what they mean. Some parameter tuning can improve the database performance, and we are usually talking about 10%, 20%, and in rare cases, up to 50% performance improvement.

2023-06-14

External Article

PostgreSQL 101: Getting started with PostgreSQL for SQL Server Developers (CT and BST Time Zones)

  • Article

In the first two webinars, we've discussed why PostgreSQL has become such a force in recent years and some of the main differences for SQL Server users to know.
In this follow-up webinar, find out how to take your first steps using PostgreSQL.

Join Ryan Booz, PostgreSQL Advocate at Redgate, and discover:
-The freely available options to help you get started
-The essential tools you will need when using PostgreSQL
-Some learning resources to help you take the next steps

2023-06-07

PostgreSQL 101: Getting started with PostgreSQL for SQL Server Developers (AEST and SGT Time Zones)

  • Article

In the first two webinars, we've discussed why PostgreSQL has become such a force in recent years and some of the main differences for SQL Server users to know.
In this follow-up webinar, find out how to take your first steps using PostgreSQL.

Join Ryan Booz, PostgreSQL Advocate at Redgate, and discover:
-The freely available options to help you get started
-The essential tools you will need when using PostgreSQL
-Some learning resources to help you take the next steps

2023-06-07

External Article

PostgreSQL 101: The 10 key differences between SQL Server & PostgreSQL

  • Article

Join us for the second webinar in our PostgreSQL 101 series.

As a SQL Server developer or DBA, you have a broad skill set and have become accustomed to interacting with the larger #SQLFamily community. Now, by choice or necessity you've begun to explore PostgreSQL and things feel oddly familiar and foreign at the same time.

Join Ryan Booze on May 25th to find out the things that often trip up SQL Server users when they first start exploring PostgreSQL.

2023-05-22

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The string_agg function

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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;

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