pears.PersonAvailableAtTime [iqx]

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====== pears.PersonAvailableAtTime ======
<WRAP center round info>
Generated schema reference. Regenerate this page from the SQL unload; keep hand-maintained business notes in the narrative namespace.
</WRAP>

===== Original SQL =====
<code sql>
COMMENT TO PRESERVE FORMAT ON PROCEDURE "pears"."PersonAvailableAtTime" IS 
{create function PersonAvailableAtTime 

/* Application Maintained Function / Procedure - DO NOT EDIT*/

(in sPersonid char(20),in dShiftDate date,in tShiftFrom time,in tShiftTo time,in iCheckExplicitlyAvailable smallint)
returns char(1)
begin
  declare foundState char(1);
  set foundstate=null; -- If we return null, we have found no explicit unavailability or availability
  -- First check for all day unavailability
  select first state into foundstate from tempshift where state not in( 'A','C') and
    personid = spersonid and shiftdate = dshiftdate and(timefrom is null or timeto is null);
  if foundstate is null then -- Look for non-concurrent employments
    select first 'W' into foundstate from employment where
      isnull(concurrent,0) = 0 and personid = spersonid and startdate <= dshiftdate and(leavedate is null or leavedate >= dshiftdate)
  end if;
  if foundstate is null then
    set foundstate=personavailableforplaniterate(spersonid,dshiftdate,tshiftfrom,tshiftto,icheckexplicitlyavailable,'')
  end if;
  return foundstate
end
}
</code>