_ (Wildcard - Match One Character) (Transact-SQL)
Applies To: SQL Server 2014, SQL Server 2016 Preview
Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
Matches any single character in a string comparison operation that involves pattern matching, such as LIKE and PATINDEX.
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 Person table, who have a three-letter first name that ends in an.
USE AdventureWorks2012; GO SELECT FirstName, LastName FROM Person.Person WHERE FirstName LIKE '_an' ORDER BY FirstName;