SQL SERVER - How to capitalize the first letter of a record in SQL

 Cast your ntext to nvarchar(max) and do the upper and left operations. Sample below.

SELECT UPPER(LEFT(cast(Comments as nvarchar(max)),1)) +
LOWER(SUBSTRING(cast(Comments as nvarchar(max)),2,
LEN(cast(Comments as nvarchar(max)))))  
FROM dbo.Template_Survey;

Following should work for update.

Update dbo.Template_Survey SET Comments = 
UPPER(LEFT(cast(Comments as nvarchar(max)),1)) +
LOWER(SUBSTRING(cast(Comments as nvarchar(max)),2,
LEN(cast(Comments as nvarchar(max)))));