Deleting duplicate rows

A very cool technique to find and delete duplicate rows and just keep one unique row uinsg CTE ( common table expression) in SQL 2008

Initially the table had data

updateId  ptno
1                95689
2                95689
3                95689
4               91458
5               91000

Result desired
1               95689
4               91458
5               91000

(3 unique rows)

SELECT UpdateID,Ptno INTO #TempPtno From  dataTable1
WHERE uploaded = 0
AND deleted=0
AND flag=0 ;

/* Delete Duplicate records */
WITH CTE ( UpdateId,Ptno, DuplicateCount)
AS
(
SELECT UpdateId,Ptno,
ROW_NUMBER() OVER(PARTITION BY Ptno ORDER BY ptno) AS DuplicateCount
FROM #TempPtno
)
DELETE
FROM CTE
WHERE DuplicateCount > 1



**If there is a semicolon missing at the end of the statement before WITH CTE the following ing error will be thrown
Msg 319, Level 15, State 1, Procedure  procName , Line number
Incorrect syntax near the keyword 'with'. If this statement is a common table expression, an xmlnamespaces clause or a change tracking context clause, the previous statement must be terminated with a semicolon.