Data Manipulation Language Statements › #MAPMOD—requests that the system modify options in the map request block

#MAPMOD—requests that the system modify options in the map request block

The #MAPMOD statement requests that the system modify options in the map request block (MRB) for a map; modifications can be designated as permanent or temporary. Requested revisions can be field-specific and/or non field-specific. Field-specific revisions apply to the map's variable data fields, not to literal fields.

The following considerations apply:

• If modification of one field is necessary, the FIELD, MRB, and the optional PLIST parameters, described below, should be specified.
• If modification of more than one field is necessary, the FLIST, FOR, and MRBLIST parameters, described below, should be specified.
• The #MAPMOD attribute parameters revise predefined map and/or map data field attributes, and thus have no defaults. If a #MAPMOD attribute parameter is not specified, that parameter remains set to the value specified at map generation or to the value set with a previously issued #MAPMOD statement specifying TYPE=PERM. Conflicting attributes are resolved by runtime mapping.