Merge cells in CSV file

Question

Hi,
To create header for CSV , we are using table data.
Select h1 from tab1 where SUB_HEADER in('AA','AB','AC','AD');
o/p is
A,A,A,AHere AA,AB,AC,AD are sub headers and A is header.
When am creating CSV file using these,A is coming in each cell of first row.
A   A     A    A
AA  AB    Ac   AD
data........But I need to merge all those duplicates into single cell as below and remaining same
A
AA AB AC AD
data.....Edited by: 925896 on Feb 12, 2013 9:28 PM

Answer 1

You should explain how you want the data displayed
A
+---------------+
|A              |
+---+---+---+---+
|AA |AB |AC |AD |
+---+---+---+---+
B
+---+---+---+---+
|A  |   |   |   |
+---+---+---+---+
|AA |AB |AC |AD |
+---+---+---+---+
C
+---------------+
|A              |
+---+---+---+---+
|AA  AB  AC  AD |
+---+---+---+---+As Jeneesh said above A is not possible with CSV format.
For B you need the solution with NULL values suggested by Jeneesh.
For C you need the solution with string-aggregation suggested by ranit B.
Regards
Marcus