UPPER (Transact-SQL)
Returns a character expression with lowercase character data converted to uppercase.
Syntax
UPPER (character_expression )
Arguments
character_expression
Is an expression of character data. character_expression can be a constant, variable, or column of either character or binary data.character_expression must be of a data type that is implicitly convertible to varchar. Otherwise, use CAST to explicitly convert character_expression.
Return Types
varchar or nvarchar
Examples
The following example uses the UPPER and RTRIM functions to return the last name of people in the Contact table so that is in uppercase, trimmed, and concatenated with the first name.
USE AdventureWorks;
GO
SELECT UPPER(RTRIM(LastName)) + ', ' + FirstName AS Name
FROM Person.Contact
ORDER BY LastName;
GO