update in Sqlserver using SP_XML_PREPAREDOCUMENT

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HI,
i am getting following xml from front end

SQL

<root>
<row DeptID = '319'  WeekDayID='1' SchedulePriority= '7' />
<row DeptID = '319'  WeekDayID='2' SchedulePriority= '6' />
</root>

for inserting written following code in stored procedure

SQL

declare @i int                         
		EXEC SP_XML_PREPAREDOCUMENT @i OUTPUT	 
		INSERT INTO temp
			 (col1,col2,col3)             
		SELECT
	        TempInsert.Item.value('@col1', 'int'),
	        TempInsert.Item.value('@col2', 'int'),
	        TempInsert.Item.value('@col3', 'int')	        
		FROM @XMLInsertion.nodes('/root/row') AS TempInsert(Item)
		EXEC SP_XML_REMOVEDOCUMENT @i

it works and inserted successfully
i need to update the table using the same xml
any suggestions

Thanks in Advance

Posted 5-Mar-14 0:47am

a.pkumar

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Naresh.Thakor · Accepted Answer · 2014-03-05T01:32:00

Hello Friend,
Using SQL CTE(Common table Expression) you can do this thing. below i provide some sample code as per your requirement.

SQL

;WITH CTE AS
    (
        SELECT
            t.n.value('@DeptID', 'varchar(10)') as DeptID,
            t.n.value('@SchedulePriority', 'varchar(10)') as WeekDayID
        FROM @XMLInsertion.nodes('/root/*') as t(n)
    )
    UPDATE T
        SET SCHEDULEPRIORITY = C.WeekDayID --Write a field name which you want to update
    FROM TEMP AS T
        INNER JOIN CTE AS C
    ON T.DEPTID = C.DEPTID

    SELECT * FROM TEMP