SQL where with Union and Left - sql

Question

Is it possible to add criteria in [ID] and not in [TypeID] in Left Join?
SQL = "SELECT " & _
"ADate As NewDate, " & _
"tblA.TypeID as ID, " & _
"tblAB.TypeControl as ControlID " & _
"FROM tblA " & _
"LEFT OUTER JOIN tblAB " & _
"ON tblAB.TypeID = tblA.TypeID " & _
"WHERE tblA.TypeID = " & Counter & " " & _ => Delete this one.
"UNION ALL SELECT " & _
"BDate As NewDate, " & _
"tblB.TypeID as ID, " & _
"tblAB.TypeControl as ControlID " & _
"FROM tblB " & _
"LEFT OUTER JOIN tblAB " & _
"ON tblAB.TypeID = tblB.TypeID " & _
"WHERE tblB.TypeID = " & Counter & " " & _ => Delete this one.
===
and place one WHERE on ID here
"WHERE ID = " & Counter & " " & _ => Like this one. But I am getting an error.
===
"ORDER BY NewDate;"
Delete the two WHERE from tblA and tblB.
Add one in ID in the end.
And create this one.
SQL = "SELECT " & _
"ADate As NewDate, " & _
"tblA.TypeID as ID, " & _
"tblAB.TypeControl as ControlID " & _
"FROM tblA " & _
"LEFT OUTER JOIN tblAB " & _
"ON tblAB.TypeID = tblA.TypeID " & _
"UNION ALL SELECT " & _
"BDate As NewDate, " & _
"tblB.TypeID as ID, " & _
"tblAB.TypeControl as ControlID " & _
"FROM tblB " & _
"LEFT OUTER JOIN tblAB " & _
"ON tblAB.TypeID = tblB.TypeID " & _
"WHERE tblB.TypeID = " & Counter & " " & _
"WHERE ID = " & Counter & " " & _
"ORDER BY NewDate;"
Thank you in advance.

Answer 1

You can check for ID's only once by wrapping your entire query in a subquery, and then check for IDs in the outer query, e.g.:
SELECT * FROM (
SELECT " & _
"ADate As NewDate, " & _
"tblA.TypeID as ID, " & _
"tblAB.TypeControl as ControlID " & _
"FROM tblA " & _
"LEFT OUTER JOIN tblAB " & _
"ON tblAB.TypeID = tblA.TypeID " & _
"UNION ALL SELECT " & _
"BDate As NewDate, " & _
"tblB.TypeID as ID, " & _
"tblAB.TypeControl as ControlID " & _
"FROM tblB " & _
"LEFT OUTER JOIN tblAB " & _
"ON tblAB.TypeID = tblB.TypeID "
) WHERE ID = " & Counter & "
However, depending on how the database engine optimizes this, it might take longer to execute. I recommend you don't do this, and leave your query as-is.
(Also, I leave the quotes mess to you, since your question shouldn't have these anyway).