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update col numbers

Posted on 2011-03-01
9
Medium Priority
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Last Modified: 2012-05-11
hi there ,
i have this col that i want to update
proName (nvarhcar type)
1
2
3
4
i want to update its to :
1001
1002
1003
1004
i try to do this :
update dbo.Products set ProName=1001+1
but its not working
how can i fix that ?

0
Comment
Question by:Tech_Men
  • 5
  • 3
9 Comments
 
LVL 5

Assisted Solution

by:Kakhaber Siradze
Kakhaber Siradze earned 400 total points
ID: 35006112
update dbo.Products
set ProName=1001+ProName
0
 
LVL 5

Expert Comment

by:Kakhaber Siradze
ID: 35006118
update dbo.Products
set ProName=1000+ProName
0
 

Author Comment

by:Tech_Men
ID: 35006137
soryy
what abhot if i have in the ProName :
XXX
YYY
SSS
now how can fix that to :
1001
1002
1003
???
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LVL 5

Expert Comment

by:Kakhaber Siradze
ID: 35006152
UPDATE dbo.Products
   SET [ProName] = cast((cast(ProName as numeric)+1000) as varchar)
0
 

Author Comment

by:Tech_Men
ID: 35006174
Error converting data type nvarchar to numeric.
0
 

Author Comment

by:Tech_Men
ID: 35006190
i want to set a numeric from number to number
to this fild
even if the fild are filled whit string
0
 

Author Comment

by:Tech_Men
ID: 35006203
to make a runing number to all rows in the table
if i have 10 rows and i want if to strat from the number 5000
its end in the last row 5009
0
 
LVL 22

Accepted Solution

by:
Thomasian earned 1600 total points
ID: 35006253
Change 1000 to the start number - 1, ID to the field name you want the ProName to be sorted on

UPDATE P
SET ProName = rn + 1000
FROM (SELECT ProName, ROW_NUMBER() OVER (ORDER BY ID) rn
        FROM Products
     ) P

Open in new window


Test script
DECLARE @Products table (ID int identity(1,1), ProName nvarchar(100))

INSERT INTO @Products
SELECT 'XXX'
UNION ALL SELECT '1242'
UNION ALL SELECT 'SSF3'
UNION ALL SELECT 'SDFf'

SELECT * FROM @Products 
/*
ID	ProName
1	XXX
2	1242
3	SSF3
4	SDFf
*/

UPDATE P
SET ProName = rn + 1000
FROM (SELECT ProName, ROW_NUMBER() OVER (ORDER BY ID) rn
        FROM @Products
     ) P
     
SELECT * FROM @Products
/* After update
ID	ProName
1	1001
2	1002
3	1003
4	1004
*/

Open in new window

0
 

Author Closing Comment

by:Tech_Men
ID: 35006428
thanks
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