dm
to another exist?Does a reference from one table of a dm
to another exist?
cdm_has_fk(dm, table, ref_table)
A dm
object.
A table in the dm
The table which table
is potentially referencing.
A boolean value: TRUE
, if a reference from table
to ref_table
exists, FALSE
otherwise.
Other foreign key functions: cdm_add_fk
,
cdm_enum_fk_candidates
,
cdm_get_all_fks
, cdm_get_fk
,
cdm_rm_fk