The Subtle Differences Between COALESCE and ISNULL
See how ISNULL and COALESCE behave in different situations and ensure you know which one to pick when.
2025-04-18
5,070 reads
Coalesce()
2025-04-02
1,954 reads
Using Coalesce to Clean Up Reports
One of the lesser used functions is COALESCE(), used to allow you to return one value from a list of those that are potentially NULL. This short pieces gives a few examples where this is useful?
2021-08-16
4,314 reads
2018-05-18
978 reads
2016-01-29
1,685 reads
COALESCE in SQL Server
Sandeep Mittal provides an introduction to the COALESCE function and shows how to use it.
2015-11-25
4,572 reads
2013-09-20
2,715 reads
2013-06-03
2,609 reads
2012-11-09
2,216 reads
2012-10-17
2,545 reads
Blogs
Flyway Tips: AI Deployment Script Descriptions
By Steve Jones
With the AI push being everywhere, Redgate is no exception. We’ve been getting requests,...
A New Word: Fawtle
By Steve Jones
fawtle – n. a weird little flaw built into your partner that somehow only...
Post-quantum key exchange – Insurance policy for your packets
AWS recently added support for Post-Quantum Key Exchange for TLS in Application Load Balancer...
Forums
Semantic Search in SQL Server 2025
Comments posted to this topic are about the item Semantic Search in SQL Server...
Encoding URLs
Comments posted to this topic are about the item Encoding URLs
An SSIS Upgrade
Comments posted to this topic are about the item An SSIS Upgrade
Question of the Day
Encoding URLs
I have this data in a table:
CREATE TABLE Response ( ResponseID INT NOT NULL CONSTRAINT ResponsePK PRIMARY KEY , ResponseVal VARBINARY(5000) ) GOIf I want to get a value from this table that I can add to a URL in a browser, which of these code items produces a result I can use? See possible answers