How to get the data in order by date

Question

Hi,
i am getting the data like bellow i need the data with out null values
date     col1     col2     col3     col4
16-Nov-11     23               
17-Nov-11     12               
18-Nov-11     321               
19-Nov-11     23               
20-Nov-11     132               
16-Nov-11          2321          
17-Nov-11          112          
18-Nov-11          211          
19-Nov-11          132          
20-Nov-11          12          
16-Nov-11               45     
17-Nov-11               465     
18-Nov-11               2123     
19-Nov-11               132     
20-Nov-11               65     
16-Nov-11                    456
17-Nov-11                    546
18-Nov-11                    4656
19-Nov-11                    566
20-Nov-11                    564
need out like below
date     col1     col2     col3     col4
16-Nov-11     23     2321     45     456
17-Nov-11     12     112     465     546
18-Nov-11     321     211     2123     4656
19-Nov-11     23     132     132     566
20-Nov-11     132     12     65     564
Thanks in advance,
Venkat.

Answer 1

Hi, Venkat,
user6552629 wrote:
Hi,
i am getting the data like bellow i need the data with out null values
date     col1     col2     col3     col4
16-Nov-11     23               
17-Nov-11     12               
18-Nov-11     321               
19-Nov-11     23               
20-Nov-11     132               
16-Nov-11          2321          
17-Nov-11          112          
...You may have noticed that this site noramlly compresses whitespace. As a result, it looks like col1 is present on every row, but col2, col3 and col4 are always NULL.
Whenever you post formatted text on this site, type these 6 characters:
\(small letters only, inside curly brackets) before and after each section of formatted text, to preserve spacing, so that your message can look like this:date          col1     col2     col3     col4
16-Nov-11     23               
17-Nov-11     12               
18-Nov-11     321               
19-Nov-11     23               
20-Nov-11     132               
16-Nov-11          2321          
17-Nov-11          112          
You want to take a table, that has multiple rows for the same dt, and produce a result set that has one row per dt.  That sound like a job for GROUP BY:SELECT     dt     -- DATE is not a good column name
,     MIN (col1)     AS col1
,     MIN (col2)     AS col2
,     MIN (col3)     AS col3
,     MIN (col4)     AS col4
FROM     table_x
GROUP BY dt     -- See note below
ORDER BY dt
Depending on your data and your requirements, you may need to use TRUNC (dt) in all 3 places where I used dt above.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and the results you want from that data.
Explain, using specific examples, how you get those results from that data.
Always say what version of Oracle you're using.
You'll get better replies sooner if you post this information every time you have a question.
Edited by: Frank Kulash on Nov 15, 2011 10:37 PM