referntial integrity issue with two tables cant delete a record
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So I am trying to delete a record from customers table. I would assume it's a referential integrity issue, however I don't really see what is wrong with it. Could anyone shed some light? Please and Thanks. Error Message below
DELETE FROM customers
WHERE customer_id = 1
table structures:
CREATE TABLE payment_details (
paytype_id varchar(10),
card_no int(8) NOT NULL,
customer_id int(50) NOT NULL,
CVV int(3) NOT NULL,
card_type ENUM ('Visa', 'Amex', 'American Express', 'Mastercard') NOT NULL,
expiry_date DATE NOT NULL,
PRIMARY KEY(paytype_id),
KEY customer_idfk1 (customer_id),
CONSTRAINT customer_idfk1 FOREIGN KEY (customer_id) REFERENCES customers (customer_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
and
CREATE TABLE customers (
customer_id int(50) NOT NULL AUTO_INCREMENT,
fname varchar(20) NOT NULL,
lname varchar(20) NOT NULL,
dateOfBirth date NOT NULL,
address varchar(30) NOT NULL,
city varchar(20) NOT NULL,
county ENUM('Armagh','Carlow','Cavan','Clare','Cork','Derry','Donegal','Down','Dublin','Fermanagh','Galway','Kerry','Kildare','Kilkenny','Laois','Leitrim','Limerick','Longford','Louth','Mayo','Meath','Monaghan','Offaly','Roscommon','Sligo','Tipperary','Tyrone','Waterford','Westmeath','Wexford','Wicklow') NOT NULL,
phone int(10) NOT NULL,
email varchar(20) NOT NULL,
payment_method ENUM ('Visa', 'Amex', 'Cash', 'American Express', 'Mastercard') NOT NULL,
valid_licence varchar(5) NOT NULL,
status varchar(10),
PRIMARY KEY (customer_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
error - #1451 - Cannot delete or update a parent row: a foreign key
constraint fails (g00337857abu
.payment_details
, CONSTRAINT
customer_idfk1
FOREIGN KEY (customer_id
) REFERENCEScustomers
(customer_id
))
mysql
add a comment |
So I am trying to delete a record from customers table. I would assume it's a referential integrity issue, however I don't really see what is wrong with it. Could anyone shed some light? Please and Thanks. Error Message below
DELETE FROM customers
WHERE customer_id = 1
table structures:
CREATE TABLE payment_details (
paytype_id varchar(10),
card_no int(8) NOT NULL,
customer_id int(50) NOT NULL,
CVV int(3) NOT NULL,
card_type ENUM ('Visa', 'Amex', 'American Express', 'Mastercard') NOT NULL,
expiry_date DATE NOT NULL,
PRIMARY KEY(paytype_id),
KEY customer_idfk1 (customer_id),
CONSTRAINT customer_idfk1 FOREIGN KEY (customer_id) REFERENCES customers (customer_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
and
CREATE TABLE customers (
customer_id int(50) NOT NULL AUTO_INCREMENT,
fname varchar(20) NOT NULL,
lname varchar(20) NOT NULL,
dateOfBirth date NOT NULL,
address varchar(30) NOT NULL,
city varchar(20) NOT NULL,
county ENUM('Armagh','Carlow','Cavan','Clare','Cork','Derry','Donegal','Down','Dublin','Fermanagh','Galway','Kerry','Kildare','Kilkenny','Laois','Leitrim','Limerick','Longford','Louth','Mayo','Meath','Monaghan','Offaly','Roscommon','Sligo','Tipperary','Tyrone','Waterford','Westmeath','Wexford','Wicklow') NOT NULL,
phone int(10) NOT NULL,
email varchar(20) NOT NULL,
payment_method ENUM ('Visa', 'Amex', 'Cash', 'American Express', 'Mastercard') NOT NULL,
valid_licence varchar(5) NOT NULL,
status varchar(10),
PRIMARY KEY (customer_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
error - #1451 - Cannot delete or update a parent row: a foreign key
constraint fails (g00337857abu
.payment_details
, CONSTRAINT
customer_idfk1
FOREIGN KEY (customer_id
) REFERENCEScustomers
(customer_id
))
mysql
add a comment |
So I am trying to delete a record from customers table. I would assume it's a referential integrity issue, however I don't really see what is wrong with it. Could anyone shed some light? Please and Thanks. Error Message below
DELETE FROM customers
WHERE customer_id = 1
table structures:
CREATE TABLE payment_details (
paytype_id varchar(10),
card_no int(8) NOT NULL,
customer_id int(50) NOT NULL,
CVV int(3) NOT NULL,
card_type ENUM ('Visa', 'Amex', 'American Express', 'Mastercard') NOT NULL,
expiry_date DATE NOT NULL,
PRIMARY KEY(paytype_id),
KEY customer_idfk1 (customer_id),
CONSTRAINT customer_idfk1 FOREIGN KEY (customer_id) REFERENCES customers (customer_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
and
CREATE TABLE customers (
customer_id int(50) NOT NULL AUTO_INCREMENT,
fname varchar(20) NOT NULL,
lname varchar(20) NOT NULL,
dateOfBirth date NOT NULL,
address varchar(30) NOT NULL,
city varchar(20) NOT NULL,
county ENUM('Armagh','Carlow','Cavan','Clare','Cork','Derry','Donegal','Down','Dublin','Fermanagh','Galway','Kerry','Kildare','Kilkenny','Laois','Leitrim','Limerick','Longford','Louth','Mayo','Meath','Monaghan','Offaly','Roscommon','Sligo','Tipperary','Tyrone','Waterford','Westmeath','Wexford','Wicklow') NOT NULL,
phone int(10) NOT NULL,
email varchar(20) NOT NULL,
payment_method ENUM ('Visa', 'Amex', 'Cash', 'American Express', 'Mastercard') NOT NULL,
valid_licence varchar(5) NOT NULL,
status varchar(10),
PRIMARY KEY (customer_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
error - #1451 - Cannot delete or update a parent row: a foreign key
constraint fails (g00337857abu
.payment_details
, CONSTRAINT
customer_idfk1
FOREIGN KEY (customer_id
) REFERENCEScustomers
(customer_id
))
mysql
So I am trying to delete a record from customers table. I would assume it's a referential integrity issue, however I don't really see what is wrong with it. Could anyone shed some light? Please and Thanks. Error Message below
DELETE FROM customers
WHERE customer_id = 1
table structures:
CREATE TABLE payment_details (
paytype_id varchar(10),
card_no int(8) NOT NULL,
customer_id int(50) NOT NULL,
CVV int(3) NOT NULL,
card_type ENUM ('Visa', 'Amex', 'American Express', 'Mastercard') NOT NULL,
expiry_date DATE NOT NULL,
PRIMARY KEY(paytype_id),
KEY customer_idfk1 (customer_id),
CONSTRAINT customer_idfk1 FOREIGN KEY (customer_id) REFERENCES customers (customer_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
and
CREATE TABLE customers (
customer_id int(50) NOT NULL AUTO_INCREMENT,
fname varchar(20) NOT NULL,
lname varchar(20) NOT NULL,
dateOfBirth date NOT NULL,
address varchar(30) NOT NULL,
city varchar(20) NOT NULL,
county ENUM('Armagh','Carlow','Cavan','Clare','Cork','Derry','Donegal','Down','Dublin','Fermanagh','Galway','Kerry','Kildare','Kilkenny','Laois','Leitrim','Limerick','Longford','Louth','Mayo','Meath','Monaghan','Offaly','Roscommon','Sligo','Tipperary','Tyrone','Waterford','Westmeath','Wexford','Wicklow') NOT NULL,
phone int(10) NOT NULL,
email varchar(20) NOT NULL,
payment_method ENUM ('Visa', 'Amex', 'Cash', 'American Express', 'Mastercard') NOT NULL,
valid_licence varchar(5) NOT NULL,
status varchar(10),
PRIMARY KEY (customer_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
error - #1451 - Cannot delete or update a parent row: a foreign key
constraint fails (g00337857abu
.payment_details
, CONSTRAINT
customer_idfk1
FOREIGN KEY (customer_id
) REFERENCEScustomers
(customer_id
))
mysql
mysql
asked 8 mins ago
GrubertusinoGrubertusino
22
22
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add a comment |
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