SQL & PL/SQL :: Measure Time Overlap Between 3 Date Ranges
Mar 28, 2013
I have this requirement to pull the ACTIVE days that a participant holds true in a given month for a specific position he/she holds.
The three date ranges here are: LOA dates(leave of absence), XFER dates(TRANSFER in/out of the position),Quality compliance(QUAL start/end dates).
So,
INACTIVE DAYS = [(LOA + XFER + WW) - OVERLAPPING DAYS OF (LOA+XFER+QUAL)]
Here is the scenario:
---------------------
CREATE TABLE PAYEES
(
RUN_PERIOD DATE NOT NULL,
PAYEEID VARCHAR2(20 BYTE) NOT NULL,
LOA_START_DATE DATE,
LOA_END_DATE DATE,
[Code].....
---------------------------------------------------------
---------------------------------------------------------
Now Active days is to be pulled for Two payees - TESTD01 and TESTD02 for the period of June month.
Desired Results :
Payee InActive_days Active_Days Period
---------------------------------------------------------------------------------------
TESTD01 13 17 June
TESTD02 14 16 June
I am able to pull out the no of days on a individual basis(count of days for Xfer/LOA/Qual) but I am really not sure as to how should i go about determining the overlapping days between 3 date ranges to determine the ACTIVE/INactive days.
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[code]....
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