what is row source in access
A row source is a set of rows returned by a step in an execution plan. A row source can be a table, view, or result of a join or grouping operation. A unary operation such as an access path, which is a technique used by a query to retrieve rows from a row source, accepts a single row source as input. For example, a full table scan is the retrieval of rows of a single row source. The database uses different access paths for different relational data structures.