It is necessary to turn off for a while, then turn on the foreign keys in the tables. Tried like here (at the bottom of the page). Happened:

alter table client foreign key(address_id) not enforced

Result of performance:

This is not a valid Command Line Processor command. During SQL processing it returned: SQL0104N An unexpected token "not" was found the following "eign key (address_id)". Expected tokens may include: "".
SQLSTATE = 42601

Tried different syntax.

    1 answer 1

    Leaving the DB2 dialect aside, the foreign key cannot be disabled. It can be removed and then recreated.

     Alter table ... drop constraint ... Alter table ... add constraint ...