Check_date в діапазоні спостережень

 Perform get_range_dobn,

Exceptional cases:

1. (Low_100 = spacedate ) And (high_100 = spacedate).

2. (High_100 = spacedate) And ( low_100 < min_dobn Or ( low_100 > max_dobn ) ).

3. ( Low_100 = spacedate ) And ( High_100 < min_dobn Or ( High_100 > max_dobn ) ).

4.  ( Low_100 <> spacedate ) and (

high_100 < min_dobn and ( high_100 <> spacedate) or ( high_100 > max_dobn) )

5.  ( High_100 <> spacedate ) and (

Low_100 < min_dobn and ( low_100 <> spacedate) or ( low_100 > max_dobn) )

6. ( High_100 < Low_100 ) And ( high_100 <> spacedate ).