How to generate alpha numeric random numbers using function in MS SQL Server

///////////// Sql query

SELECT LEFT(REPLACE(CONVERT(VARCHAR(255),NEWID()),'-',''),10)+RIGHT(REPLACE(CONVERT(VARCHAR(255),NEWID()),'-',''),10)

--------------- for more secure string

SELECT LEFT(REPLACE(CONVERT(VARCHAR(255),NEWID()),'-',''),4) + RIGHT(REPLACE(CONVERT(VARCHAR(255),NEWID()),'-',''),4) +

LEFT(REPLACE(CONVERT(VARCHAR(255),NEWID()),'-',''),4) +

RIGHT(REPLACE(CONVERT(VARCHAR(255),NEWID()),'-',''),4)

--------------- Result

A6A1B0FA27A405B38515

CBB8E0390AF48984