UNPIVOT

Question

Can anyone please tell me what's wrong with the following query? I'm using TOAD
SELECT *
  FROM   bin_data
   UNPIVOT (
                direction                          
            FOR bin_data                           
            IN  (bin_1_data, bin_2_data, bin_3_data)
           );I'm getting the following error:
ORA-00933: SQL command not properly ended
Thanks
PS: Its oracle 10g database
Edited by: thinkingeye on Aug 27, 2010 10:43 AM

Answer 1

Hi,
You can unpivot in any version of Oracle by cross-joining with a table (in practice, usually a result set) that has as many rows as there are columns to unpivot.
For example:
WITH     cntr     AS
     SELECT     LEVEL     AS n
     FROM     dual
     CONNECT BY     LEVEL <= 3
SELECT     CASE     c.n
          WHEN  1       THEN  b.bin_1_data
          WHEN  2       THEN  b.bin_2_data
          WHEN  3       THEN  b.bin_3_data
     END     AS bin_data
,     ...     -- whatever other columns you need
FROM          bin_data    b
CROSS JOIN     cntr         c
;Remember to convert the unpivoted columns to the same data type, if they aren't already the same type.