Left Outer Join - Enforce From & Enforce Both - duplicate lines, table A records missing
SQL LEFT OUTER JOIN
Left Outer Join - Enforce To - report correct
nothing in SQL
There are other tables:
Table C position history table - date effective - linked to table A via position number
Table D field descriptions - linked to table C
Table E costing splits - linked to table A via Position Number
Table F reports to position details - same as table A but linked from a reports to position number on table A.