IMS DL/I Codes

Dli-Function Code’s : 4 byte function code describing the type of requested service.
GU ----------à Get Unique
GN ----------à Get Next
GNP ----------à Get Next Within Parent
GHU ----------à Get Hold Unique
GHN ----------à Get Hold Next
GHNP ----------à Get Hold Next Within Parent
ISRT ----------à Insert
DLET ----------à Delete
REPL ----------à Replace
CHKP ----------à Check point
XRST ----------à Restart