SQL Help Need to Calculate Count beteen two dates.

Question

CREATE TABLE SUPPORT_SERVICES.LOAN_ACTION
  LOAN_NBR     NUMBER(10),
  ACTION_CODE  VARCHAR2(20 BYTE),
  DOC_CODE     VARCHAR2(20 BYTE),
  ACTION_DATE  DATE
SET DEFINE OFF;
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'ASSIGN', 'MORT', TO_DATE('12/01/2011 20:24:38', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'PASSIGN', 'MORT', TO_DATE('12/02/2011 20:24:38', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'QASSIGN', 'MORT', TO_DATE('12/03/2011 20:24:38', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'RASSIGN', 'MORT', TO_DATE('12/09/2011 20:24:38', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'SASSIGN', 'MORT', TO_DATE('12/04/2011 20:24:38', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'TASSIGN', 'MORT', TO_DATE('12/05/2011 20:24:38', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'UASSIGN', 'MORT', TO_DATE('12/06/2011 20:24:38', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'YASSIGN', 'MORT', TO_DATE('12/07/2011 20:24:38', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (100, 'xASSIGN', 'MORT', TO_DATE('12/08/2011 20:24:39', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (101, 'ASSIGN', 'MORT', TO_DATE('12/01/2011 20:24:39', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (101, 'PASSIGN', 'MORT', TO_DATE('12/02/2011 20:24:39', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (101, 'QASSIGN', 'MORT', TO_DATE('12/03/2011 20:24:39', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (101, 'SASSIGN', 'MORT', TO_DATE('12/04/2011 20:24:39', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (101, 'TASSIGN', 'MORT', TO_DATE('12/05/2011 20:24:39', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (101, 'UASSIGN', 'MORT', TO_DATE('12/06/2011 20:24:39', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (101, 'YASSIGN', 'MORT', TO_DATE('12/07/2011 20:24:39', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOAN_ACTION
   (LOAN_NBR, ACTION_CODE, DOC_CODE, ACTION_DATE)
Values
   (101, 'UNASSIGN', 'MORT', TO_DATE('12/08/2011 20:24:40', 'MM/DD/YYYY HH24:MI:SS'));
COMMIT;Could some one please give me a idea to solve following scenario .
from the above table i want to count DOC_CODE column values between action_code ='ASSIGN' AND action_code 'UNASSIGN'
example :
LOAN_NBR     ACTION_CODE     DOC_CODE        ACTION_DATE
101     ASSIGN                     MORT     12/1/2011 8:24:39 PM
101     PASSIGN                     MORT     12/2/2011 8:24:39 PM
101     QASSIGN                   MORT     12/3/2011 8:24:39 PM
101     SASSIGN                     MORT     12/4/2011 8:24:39 PM
101     TASSIGN                     MORT     12/5/2011 8:24:39 PM
101     UASSIGN                     MORT     12/6/2011 8:24:39 PM
101     YASSIGN                     MORT     12/7/2011 8:24:39 PM
101     UNASSIGN                     MORT     12/8/2011 8:24:40 PMFor Loan Number 101 ,ACTION_CODE='ASSIGN' was on 12/1/2011 and ACTION_CODE='UNASSIGN' was on 12/6/2011
so now the doc_count is 4 ;
Let me know if you need any additioanl infoamtion on this.
Thank you
Vijay

Answer 1

Hi, Vijay,
Thanks for posting the CREATE TABLE and INSERT statements.
Don't forget to post the full results you want from that sample data, nor to say which version of Oracle you're using. (It probably doesn't matter this time; the query below works in Oracle 8.1 and higher.)
vijayp wrote:
from the above table i want to count DOC_CODE column values between action_code ='ASSIGN' AND action_code 'UNASSIGN'
example :
LOAN_NBR     ACTION_CODE     DOC_CODE        ACTION_DATE
101     ASSIGN                     MORT     12/1/2011 8:24:39 PM
101     PASSIGN                     MORT     12/2/2011 8:24:39 PM
101     QASSIGN                   MORT     12/3/2011 8:24:39 PM
101     SASSIGN                     MORT     12/4/2011 8:24:39 PM
101     TASSIGN                     MORT     12/5/2011 8:24:39 PM
101     UASSIGN                     MORT     12/6/2011 8:24:39 PM
101     YASSIGN                     MORT     12/7/2011 8:24:39 PM
101     UNASSIGN                     MORT     12/8/2011 8:24:40 PMFor Loan Number 101 ,ACTION_CODE='ASSIGN' was on 12/1/2011 and ACTION_CODE='UNASSIGN' was on 12/6/2011
so now the doc_count is 4 ;U<b>N</b>ASSIGN was on 12/8.
UASSIGN (with no N before the end) was on 12/6.
>
Let me know if you need any additioanl infoamtion on this.What if either ASSIGN or UASSIGN occurs more than once for the same loan_nbr? The query below uses the earliest ASSIGN date and the latest UASSIGN date.
Thank you
Vijay
WITH     got_date_range     AS
     SELECT     loan_nbr, doc_code, action_date
     ,     MIN ( CASE
                    WHEN  action_code = 'ASSIGN'
                 THEN  action_date
                END
              ) OVER (PARTITION BY  loan_nbr)     AS assign_date
     ,     MAX ( CASE
                    WHEN  action_code = 'UASSIGN'
                 THEN  action_date
                END
              ) OVER (PARTITION BY  loan_nbr)     AS uassign_date
     FROM    loan_action
SELECT       loan_nbr
,       COUNT (doc_code)     AS cnt_doc_code
FROM       got_date_range
WHERE       action_date     > assign_date
AND       action_date     < uassign_date
GROUP BY  loan_nbr
;