I believe, Alison-
chan, that you would be well-advised to read the
DB2 for z/OS Utility Guide and Reference, specifically the material on the
LOAD utility.
Note that you do not load a DB2
data base, but rather a
table (or more accurately, part or all of a table
space). Terminology is important, and can be critical for understanding.
"You have sat too long for any good you have been doing lately ... Depart, I say; and let us have done with you. In the name of God, go!" -- what I say to a junior programmer at least once a day