PostgreSQL UNION, INTERCEPT & EXCEPT Operator
Another article on how the SQL language works in PostgreSQL. This time we examine the UNION, INTERSECT, and EXCEPT operators.
2024-05-31
1,586 reads
Another article on how the SQL language works in PostgreSQL. This time we examine the UNION, INTERSECT, and EXCEPT operators.
2024-05-31
1,586 reads
The first two articles in this series demonstrated how PostgreSQL is a capable tool for ELT – taking raw input and transforming it into usable data for querying and analyzing. We used sample data from the Advent of Code 2023 to demonstrate some of the ELT techniques in PostgreSQL.
2024-05-20
2024-05-08
701 reads
In this tip, I will demonstrate how to migrate an existing database schema from SQL Server to PostgreSQL.
2024-03-13
2024-02-19
511 reads
A cloud migration for DoorDash interested Steve, primarily because it didn't work, but they were able to back out and try again.
2023-12-15
190 reads
Is MongoDB in use within your organization? The Flyway development team is adding MongoDB support into Flyway and would like to better understand the current pain points. If you are able help, or are interested in finding out more, please participate in our 5-minute survey.
2023-11-10
New solution allows developers and teams to “buy the base and rent the peak” when provisioning for variable workloads without wastage or performance tradeoffs
2023-11-08
538 reads
In the latest webinar of our PostgreSQL 101 series, join Ryan Booz, PostgreSQL Advocate at Redgate, and Grant Fritchey, Microsoft Data Platform MVP, and discover:
How to navigate PostgreSQL documentation
The essential things you need to know about PostgreSQL documentation
Other useful learning resources to help make your journey to using PostgreSQL easier
Please register to watch the recording.
2023-10-02
592 reads
PostgreSQL has a separate command-line tool that’s been available for decades and is included with any installation of PostgreSQL. Many long-term PostgreSQL users, developers, and administrators rely on psql to help them quickly connect to databases, examine the schema, and execute SQL queries.
Knowing how to install and use basic psql commands is an essential skill to have for anyone that will connect to PostgreSQL.
2023-09-20
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
By Steve Jones
I caught this interesting item over on Pinal Dave’s blog: Eleven Interview Questions that...
Comments posted to this topic are about the item Building a SQL Server Fleet...
Comments posted to this topic are about the item Smart AI Agents and Data...
Comments posted to this topic are about the item RegEx Functions IV
I have this data in a table in a SQL Server 2025 database:
EmailAddressID EmailAddress 7 [email protected] 8 [email protected]If I run this query, which row(s) are returned?
SELECT top 10 * FROM person.EmailAddress WHERE REGEXP_LIKE(EmailAddress, '^D', 'i') AND BusinessEntityID IN (7,8)See possible answers