Is this simpler?
;with cte as
(
select m.RecordId,m.NumberForSearch,
a.AlphaNumeric2,a.AlphaNumeric5,a.AlphaNumeric7,a.AlphaNumeric9
from table1 m join table2 a on m.RecordId = a.RecordId
where RecordId = 3212
)
select RecordId,NumberForSearch into #dump
from cte...