DBRM: DataBase Request Module, has the SQL statements extracted from the host language program by the pre-compiler.
PLAN: A result of the BIND process. It has the executable code for the SQL statements in the DBRM.
Determine the point at which DB2 acquires or releases locks against table and tablespaces, including intent locks.
PLAN has the executable code for the SQL statements in the host program.
Plan is marked as invalid. The next time the plan is accessed, it is rebound.
They contain executable code for SQL statements for one DBRM.