====== pears.EntityGrade ======
<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>
create function "pears"."EntityGrade"( in "VacID" char(20),in "PersID" char(20),in "PlacID" char(20),in "ShiftID" char(20) ) 
returns char(4)
begin
  declare "rv" char(4);
  -- Return Null to match all grades. Null grades are always matched, whatever is returned
  -- If Grades set up for minimum wage for Age range the AWR grade needs to be amended to return NULL in AWR Entity Grade function
  set "rv" = null;
  if "shiftid" is not null then
    select first "essentialskillgradeid" into "rv" from "tempshift" where "tempshiftid" = "shiftid"
  end if;
  return "rv"
end
</code>