sql - COALESCE Function in TSQL - Stack Overflow
Nov 13, 2012 · Can someone explain how the COALESCE function in TSQL works? The syntax is as follows COALESCE(x, y) The MSDN document on this function is pretty vague
How does the SQL function COALESCE() work? - Stack Overflow
Aug 6, 2018 · The SQL COALESCE() function can be described in a single sentence: COALESCE returns the first non-NULL value passed for each row. Please rephrase this …
How to use Coalesce in MySQL - Stack Overflow
A little help here. I really don't understand how to use this coalesce in MySQL I have read all the pages in page 1 result of how to use coalsece in google result. I know its meaning that it ret...
sql server - SQL Coalesce in WHERE clause - Stack Overflow
Mar 11, 2009 · I'm trying to interpret what you are saying correctly. I think you mean the following: how do you use coalesce to say all rows if null otherwise only rows that match. If that's the …
What is the difference between IFNULL and COALESCE in MySQL?
Aug 30, 2013 · Pros of COALESCE COALESCE is SQL-standard function. While IFNULL is MySQL-specific and its equivalent in MSSQL (ISNULL) is MSSQL-specific. COALESCE can …
SQL - Difference between COALESCE and ISNULL? [duplicate]
Sep 16, 2013 · What are the practical differences between COALESCE() and ISNULL(,'')? When avoiding NULL values in SQL concatenations, which one is the best to be used? Thanks!
Oracle Differences between NVL and Coalesce - Stack Overflow
Jun 4, 2009 · COALESCE is more modern function that is a part of ANSI-92 standard. NVL is Oracle specific, it was introduced in 80 's before there were any standards. In case of two …
what is the difference between Coalesce and nullif
From what I have read online it seems like nullif and coalesce are very similar and was wondering what the underlining difference is and if they could be used together to accomplish this …
COALESCE() for blank (but not null) fields - Stack Overflow
Jun 15, 2015 · The problem is, Field1 is sometimes blank but not null; since it's not null COALESCE() selects Field1, even though its blank. In that case, I need it to select Field2. I …
what is the use of coalesce in sql? - Stack Overflow
Oct 5, 2013 · COALESCE returns from a list of arguments the first expression that does not evaluate to NULL. For your example COALESCE (@DepartmentName,'') this means that if …