SQL Query - Multiple records from value of field

Question

I have a table that has the following lay out
ID
AreaUnitServes
Filter1Quantity
Filter1Size
Filter2Quantity
Filter2Size
And I’m trying to convert it to
FkPSAUnitsID
Size
Location
I’ve got the following query started but I’m stuck on how to INSERT INTO multiple records by the value of Filter1Quantity. I also have to query for Filter2Quantity.
INSERT
INTO RapidServ.dbo.PSAFilters
(FkPSAUnitsID,Size,Location)
SELECT ID
AS FkPSAUnitsID,Filter1Size
AS Size,
AreaUnitServes
AS Location
FROM RapidServ.dbo.PSA
Thanks,
why767

Answer 1

Please follow basic Netiquette and post the DDL we need to answer this. Follow industry and ANSI/ISO standards in your data. You should follow ISO-11179 rules for naming data elements. You should follow ISO-8601 rules for displaying temporal data. We need
to know the data types, keys and constraints on the table. Avoid dialect in favor of ANSI/ISO Standard SQL. And you probably need to read and download the PDF for: 
https://www.simple-talk.com/books/sql-books/119-sql-code-smells/
>> I have a table that has the following lay out <<
How nice for you! Why did you draw ASCII pictures?  It has all kinds of magical names. The table is nameless because it is forbidden by a wizard to speak its name? There are generic, universal “size” and “location”of nothing in particular. Is the “fk-”
prefix a meta data design error for “foreign key”? We never do that in RDBMS; name a data element for what it is by its nature, not for how it was used in one place in one schema. This is why we have no magical “id” in a valid schema. Data elements do not
change names from table to table. 
You seem to have inherited a pile of garbage with a repeated group in it. Look up First Normal Form (1NF). You also do not know why row is not a record and why fields are  not columns. Did you notice that “area_unit_serves” is a sentence and not
a name? 
>> I’ve got the following query started but I’m stuck on how to INSERT INTO multiple records [sic] by the value of Filter1Quantity. I also have to query for Filter2Quantity. <<
My guess until I get a usable business rules and DDL is that you can use a UNION something like this skeleton: 
INSERT INTO PSA_Filters (psa_units_id, filter_size, area_service_unit)
SELECT psa_units_id, filter_1_size, area_service_unit
  FROM Magic_Nameless_Stuff
UNION ALL
SELECT psa_units_id, filter_2_size, area_service_unit
  FROM Magic_Nameless_Stuff;
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL