Hi All,
I want to give sequence no group wise, as follows:
Section EmpCode
-----------------------
A 1001
A 1003
A 1009
B 1023
B 1030
C 1044
-----------------------
I want to set sequence no. group wise like this for above data.
Seq. Section EmpCode
------------------------------
1 A 1001
2 A 1003
3 A 1009
1 B 1023
2 B 1030
1 C 1044
----------------------------
Suggestion in this regard will be appreciated
Thanks in Advance,
T.S.Negi 3 1901
How about iterating through the table using a cursor, updating seq with
an iterative value, keeping track of section column.
Whenever the section coloumn changes value the iterator is reset to 1.
DECLARE cur CURSOR FOR SELECT select seq, section FROM your_table
ORDER BY 2 desc
OPEN cur
FETCH cur INTO @seq, @section
SET @iterator = 1
SET @prev = @section
WHILE @@FETCH_STATUS = 0
BEGIN
IF( @section <> @prev)
SET @iterator = 1
UPDATE your_table SET seq = @iterator
SET @iterator= @iterator + 1
SET @prev = @section
FETCH cur INTO @seq, @section
END
A little correction...it should be:
UPDATE your_table SET seq = @iterator WHERE CURRENT OF cur
and NOT:
UPDATE your_table SET seq = @iterator
On 13 Feb 2005 20:53:53 -0800, T.S.Negi wrote: Hi All,
I want to give sequence no group wise, as follows:
Section EmpCode ----------------------- A 1001 A 1003 A 1009 B 1023 B 1030 C 1044 -----------------------
I want to set sequence no. group wise like this for above data.
Seq. Section EmpCode ------------------------------ 1 A 1001 2 A 1003 3 A 1009 1 B 1023 2 B 1030 1 C 1044 ---------------------------- Suggestion in this regard will be appreciated
Hi T.S.,
SELECT COUNT(*) AS Seq,
a.Section,
a.EmpCode
FROM MyTable AS a
INNER JOIN MyTable AS b
ON b.Section = a.Section
AND b.EmpCode <= a.EmpCode
GROUP BY a.Section,
a.EmpCode
or
SELECT (SELECT COUNT(*)
FROM MyTable AS b
WHERE b.Section = a.Section
AND b.EmpCode <= a.EmpCode) AS Seq,
a.Section,
a.EmpCode
FROM MyTable AS a
Best, Hugo
--
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