If you do not want tables to be joined via an inner join or an outer join, you can remove the join between them. For example, you might remove a join that the Query Designer has created automatically between two tables.
Note Removing a join from a query does alter the underlying relationship in the database.
If two joined tables are part of your query and you remove all
To remove a join
The Query Designer removes the join line and alters the statement in the SQL pane.
Joining Tables Automatically | Joining Tables Manually | Querying Using Multiple Tables