The SQL SUBSTRING() function is used to extract a sub
string from a given string's start to end position.
Syntax:
//GET SQL SUBSTRING
SELECT SUBSTRING('C2495E17-2B72-4FA0-969D-BE8388E4BDBC', 5, 19) as SUBS_TRING_RESULT
OR
//GET SQL SUBSTRING
SELECT TOP 2 UPPER(SUBSTRING (NAME,1,1)) + LOWER(SUBSTRING(NAME,2,255))
AS 'CUSTOMER_NAME'
FROM CUSTOMER