[^] (Wildcard - Character(s) Not to Match) (Transact-SQL)
Matches any single character that is not within the range or set specified between the square brackets.
Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database.
The following example uses the [^] operator to find all the people in the Contact table who have first names that start with Al and have a third letter that is not the letter a.
USE AdventureWorks2012; GO SELECT FirstName, LastName FROM Person.Person WHERE FirstName LIKE 'Al[^a]%' ORDER BY FirstName;