Spracherkennung für: .test vermutete Sprache: SQL {SQL[171] ABAP[57] Masm[50]} [Methode: maximale Elemente, drei Dimensionen]
--source include/have_innodb.inc
#
# Bug #57904 Missing constraint from information schema REFERENTIAL_CONSTRAINTS table
#
CREATE TABLE product (category INT NOT NULL, id INT NOT NULL,
price DECIMAL, PRIMARY KEY(category, id)) ENGINE=INNODB;
CREATE TABLE customer (id INT NOT NULL, PRIMARY KEY (id)) ENGINE=INNODB;
CREATE TABLE product_order (no INT NOT NULL AUTO_INCREMENT,
product_category INT NOT NULL,
product_id INT NOT NULL,
customer_id INT NOT NULL,
PRIMARY KEY(no),
INDEX (product_category, product_id),
FOREIGN KEY (product_category, product_id)
REFERENCES product(category, id) ON UPDATE CASCADE ON DELETE RESTRICT,
INDEX (customer_id),
FOREIGN KEY (customer_id)
REFERENCES customer(id)
) ENGINE=INNODB;
query_vertical SELECT * FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS
WHERE table_name = 'product_order';
DROP TABLE product_order;
DROP TABLE product;
DROP TABLE customer;
[Dauer der Verarbeitung: 0.11 Sekunden, vorverarbeitet 2026-10-08]