KEYFROM= location of KEYn= = 0, before &END

KEYFROM= 0

KEY1= through KEY99=, if used, are control variables before &END.

KEYFROM= 1

KEY1 information follows after &END, but before the item names. The key is formatted exactly like a data record. It is helpful to place the name of the key, e.g. "KEY1=", where the person name would usually go, for reference.

KEYFROM= n (a positive number up to 99)

KEY1, then KEY2, and so on up to KEYn (where n is a number up to 99) follow &END, but placed before the item names. Each key is formatted exactly like a data record. It is helpful to place the name of the key, e.g. "KEY2", where the person name would usually go.

SPFILE= filename

KEY1=, KEY2=, etc., in a separate file in control-file format