How is a typical DB2 batch program executed?

DB2 batch program is executed in two ways;

1. By using DSN utility from native TSO.
Ex: DSN SYSTEM(DSP3)
RUN PROGRAM(EDD470BD)
PLAN(EDD470BD)
LIB('ED 01T.OBJ.LOADLIB')
END

2. By using IKJEFT01 utility program in JCL