Updating Field In Table

I have 3 tables and 1 view. Which are:
TOWNLAND_GEOREFERENCE_POLYGON
PlanningPointLocation
paflarea
VIEW_paapplic

The View paaplic has 100 records and I have to do the below for all 1000 records individually.
I have to update the field TP_Total in the TOWNLAND_GEOREFERENCE_POLYGON table depending on what is in the fields in the tables.
I am writing the below code but am unsure if this is going to achieve what I want.

BEGIN
Select file_number, land_use_code, pluse1_code
From VIEW_paapplic
END

BEGIN
If pluse1_code = 'A' Then
Select TP_Total From TOWNLAND_GEOREFERENCE_POLYGON
WHERE PlanningPointLocations.Townland = TOWNLAND_GEOREFERENCE_POLYGON.Townland
AND PlanningPointLocations.File_Number = File_Number

Update TOWNLAND_GEOREFERENCE_POLYGON SET TP_Total As TP_Total + 1
WHERE PlanningPointLocations.Townland = TOWNLAND_GEOREFERENCE_POLYGON.Townland
AND PlanningPointLocations.File_Number = File_Number

Else If pluse1_code = 'C' Then
Select Count(*) As TempCount From table paflarea
Where fk_paapplicfile_nu = file_number

Select TP_Total From TOWNLAND_GEOREFERENCE_POLYGON
WHERE PlanningPointLocations.Townland = TOWNLAND_GEOREFERENCE_POLYGON.Townland
AND PlanningPointLocations.File_Number = File_Number

Update TOWNLAND_GEOREFERENCE_POLYGON SET TP_Total As TP_Total + TempCount
WHERE PlanningPointLocations.Townland = TOWNLAND_GEOREFERENCE_POLYGON.Townland
AND PlanningPointLocations.File_Number = File_Number
END

Anyone any ideas?
Jmccon