I have table below
CREATE TABLE r
(
R_name Varchar(255) NOT NULL,
R_logo Varchar(255) NOT NULL,
R_open Time NOT NULL,
R_close Time NOT NULL,
R_service Time NOT NULL DEFAULT 130
)
;
ALTER TABLE restaurant ADD PRIMARY KEY (R_name);
ALTER TABLE restaurant ADD UNIQUE R_name (R_name);
CREATE TABLE account
(
A_user Varchar(255) NOT NULL,
A_pass Varchar(255) NOT NULL,
A_name Varchar(255) NOT NULL,
R_name Varchar(255) NOT NULL
)
;
ALTER TABLE account ADD PRIMARY KEY (A_user);
ALTER TABLE account ADD UNIQUE User (A_user);
-- Create relationships section -------------------------------------------------
ALTER TABLE account ADD CONSTRAINT Login FOREIGN KEY (R_name) REFERENCES restaurant (R_name) ON DELETE NO ACTION ON UPDATE NO ACTION;
and when I update table r it must update table account too, how to do?