How to align the 2 rows into 1 row?

Question

Here is the SQL below:
SELECT distinct QP.QIP_id,
        Max(decode( Upper(QP.Status_CD), Upper('Approved') , Effective_date, null ))  as Approved_date,
        Max( decode( Upper(QP.Status_CD), Upper('Submitted') , Effective_date, null ) ) as Submitted_date
         FROM  Llp_Sys.Project_Status QP
         WHERE Upper(Qp.Status_cd) in (Upper('Approved'),Upper('Submitted'))
            AND qp.qip_id = 79440
        GROUP by QP.QIP_ID,Qp.Status_CDThe output data is displayed as below:
79440  NULL     01-FEB-10
79440 04-FEB-10     NULLHow can I display only 1 row in the output instead of 2 rows.? I mean How to align the rows ?

Answer 1

Hi,
When you say
GROUP by QP.QIP_ID,Qp.Status_CDthe output will contain one row for each distinct combination of values found for qid_id and status_cd. If you want one row for each distinct value of qui_id, including all status_cds, then say
GROUP by QP.QIP_IDwithout mentioning qip_id, as Bigc suggested. There is nothing in the query that you posted that would cause an error if you did this. If you tried it and got an error message, then post the complete query that causes the error, and the complete error message, including the line number.
(If all the columns in the GROUP BY clause are also in the SELECT clause, then you don't have to say SELECT DISTINCT , since the output has separate rows only for distinct values of the GROUP BY columns.)
Whenever you have any problem, post a little sample data (CREATE TABLE and INSERT statements) and the results you want from that data. You'll get better answers faster.