Stored procedure to insert/update data ?

Question

Hi,
i have a stored procedure which checks for a specified user and a specified timespan (from - to) its allocations on tasks. The timespan is cut into 30-minute fragments by the SP.
Very abstract model
TASK (zero to many) REQUIRED_RESOURCE (zero to many) ALLOCATED_USERThe stored procedure returns a ref cursor with the following columns. The TASK_ID can be null which means there is no allocation between that START_TIME and STOP_TIME. Otherwise the user is allocated on that specific task. Because the data is cut into 30-minute fragments, STOP_TIME is always 30 minutes after START_TIME.
START_TIME, STOP_TIME, USER_ID, TASK_IDAll good so far.
I would like to store the data returned by the SP in a table. This allows me for more flexible use of the data. I'm thinking of storing the data as follows (STOP_TIME isn't really needed for storing...):
START_TIME   (pk)
USER_ID        (pk)
TASK_ID       (null)**How can I somehow 'process' the ref-cursor returned by the SP, so that data in my new table is inserted if the START_TIME + USER_ID combination doesn't exist yet or updated if it already exists?**
Thanks for thinking along!
This is the SP for reference (TRUNC30 is a function that Truncates a DateTime value to the nearest 30-minute part):
create or replace
PROCEDURE REPORT_PLAN_AV_USER
from_dt IN date,
to_dt IN date,
sysur_key IN number,
v_reservations OUT INTRANET_PKG.CURSOR_TYPE
IS
BEGIN
OPEN v_reservations FOR
  with 
      MONTHS as (select FROM_DT + ((ROWNUM-1) / (24*2)) as DT from DUAL connect by ROWNUM <= ((TO_DT - FROM_DT) * 24*2) + 1),
      TIMES as (select DT as START_TIME,(DT + 1/48) as STOP_TIME from MONTHS where TO_NUMBER(TO_CHAR(DT,'HH24')) between 8 and 15 and TO_NUMBER(TO_CHAR(DT,'D')) not in (1,7))
  select
    TIMES.START_TIME,
    TIMES.STOP_TIME,
    T.TASK_ID,
    sysur_key USER_ID,
  from
    TIMES
    left outer join (ALLOCATED_USER u INNER JOIN REQUIRED_RESOURCE r ON u.AU_ID = r.RR_ID INNER JOIN TASK t ON r.TASK_ID = t.TASK_ID)
      ON u.USER_ID = sysur_key AND t.PLAN_TYPE = 3 AND TIMES.start_time >= TRUNC30(t.START_DATE) AND TIMES.start_time < TRUNC30(t.FINISH_DATE)
  where u.USER_ID is null OR u.USER_ID = sysur_key
  order by START_TIME ASC;
END;

Answer 1

Hi,
user574699 wrote:
So I should MERGE ON (start_time AND user_id) if i'm correct?Right: the ON condition will be a compound condition; both the time and the user_id have to be the same if the rows match.
Oh, and is is possible to 'encapsulate' the MERGE statement in the SP? Or should I write another SP that selects from the output cursor as input for the MERGE statement?There's no need for a cursor or a second procedure.
If the query you posted is producing what you want, just put it in the USING clause as it is, except that you won't need an ORDER BY clause.