Hi, everyone, I am new here ...

I have a problem to create a after-trigger (update).

Example tables:

CREATE TABLE R
(
log_num SMALLINT NOT NULL,
int_num SMALLINT NOT NULL,
beg_time TIME NOT NULL,
end_time TIME NOT NULL,

PRIMARY KEY (log_num, int_num),

FOREIGN KEY skrbi(br_int) REFERENCES I (int_num)...