Question

I have these 2 queries that almost give me the data I need:

SELECT  Products.ItemID, Products.ItemID + '-' + ModifierListItems.ItemID AS SizeItemID
FROM         ModifierLists INNER JOIN
                      ProductModifierLists ON ModifierLists.ModifierListID = ProductModifierLists.ModifierListID INNER JOIN
                      ModifierListItems ON ModifierLists.ModifierListID = ModifierListItems.ModifierListID INNER JOIN
                      Products ON ProductModifierLists.ItemID = Products.ItemID AND ProductModifierLists.ManufacturerID = Products.ManufacturerID
WHERE     (Products.ManufacturerID = 262) AND ModifierListName='Size'
ORDER BY Products.ItemID

SELECT  Products.ItemID, ModifierListItems.ItemID AS ColorItemID
FROM         ModifierLists INNER JOIN
                      ProductModifierLists ON ModifierLists.ModifierListID = ProductModifierLists.ModifierListID INNER JOIN
                      ModifierListItems ON ModifierLists.ModifierListID = ModifierListItems.ModifierListID INNER JOIN
                      Products ON ProductModifierLists.ItemID = Products.ItemID AND ProductModifierLists.ManufacturerID = Products.ManufacturerID
WHERE     (Products.ManufacturerID = 262) AND ModifierListName='Color'
ORDER BY Products.ItemID

The final output I am looking for is the SizeItemID concatenated with the ColorItemID joined on the ItemID.

Sample results of the 2 queries:

ItemID    SizeItemID
-------   ----------
A          A-S
A          A-M
B          B-M
B          B-L

ItemID     ColorItemID
-------    -----------
A            BLK
A            WHT
B            BLK
B            WHT
B            GRN

The results I am looking for would be the following:

FinalItemID
-----------
A-S-BLK
A-S-WHT
A-M-BLK
A-M-WHT
B-M-BLK
B-M-WHT
B-M-GRN
B-L-BLK
B-L-WHT
B-L-GRN

Answer 1

You can take your two queries and join them together on ItemId to construct the final value.

In the following query, I also use aliases on your table names. Many people find meaningful aliases easier to read than long table names:

with tsize as (
     SELECT p.ItemID,
            p.ItemID + '-' + mli.ItemID AS SizeItemID
     FROM ModifierLists ml INNER JOIN
           ProductModifierLists pml 
           ON ml.ModifierListID = pml.ModifierListID INNER JOIN
           ModifierListItems mli
           ON ml.ModifierListID = mli.ModifierListID INNER JOIN
           Products p
           ON pml.ItemID = Products.ItemID AND
              pml.ManufacturerID = p.ManufacturerID
     WHERE (p.ManufacturerID = 262) AND ModifierListName='Size'
    ),
     tcolor as (
     SELECT  p.ItemID, mli.ItemID AS ColorItemID
     FROM ModifierLists moli INNER JOIN
          ProductModifierLists pml
          ON ml.ModifierListID = pml.ModifierListID INNER JOIN
          ModifierListItems mli
          ON ml.ModifierListID = mli.ModifierListID INNER JOIN
          Products p
          ON pml.ItemID = Products.ItemID AND
             pml.ManufacturerID = p.ManufacturerID
     WHERE     (Products.ManufacturerID = 262) AND ModifierListName='Color'
    )
select SizeItemID+'-'+ColorItemID
from tsize join tcolor
    on tsize.itemid = tcolor.ItemID