mysql-error-1452

This seems to be a common error, but for the life of me I can't figure this out. I have a set of InnoDB user tables in MySQL that are tied together via foreign key; the parent user table, and a set of child tables that store email addresses, actions, etc. These are all tied to the parent user table by a foreign key, uid , with all of the parent and child keys being int(10) . All of the child tables have a uid value with a foreign key constraint pointing to user.uid , and set to ON DELETE CASCADE and ON UPDATE CASCADE . When I delete a user from user , all of the child constrained entries are

i am trying to import a sql dump of magento along with some product data and i get this foreign key constraint error: `ERROR 1452 (23000) at line 231680: Cannot add or update a child row: a foreign key constraint fails: `magento`.`#sql-b33_27`, CONSTRAINT `FK_CATALOG_COMPARE_ITEM_CUSTOMER_ID_CUSTOMER_ENTITY_ENTITY_ID` FOREIGN KEY (`customer_id`) REFERENCES `customer_entity` (`entity_id`) ON DELETE CASCADE ON )` This is the sql code which is causing the error : -- -- Constraints for table `catalog_eav_attribute` -- ALTER TABLE `catalog_eav_attribute` ADD CONSTRAINT `FK_CATALOG_EAV_ATTRIBUTE

I'm receiving an error when I attempt to create two tables. There was a multivalued dependency, so I separated the tables and came up with this: CREATE TABLE NAME ( NameID Integer NOT NULL AUTO_INCREMENT, Name varChar(255) NOT NULL, CONSTRAINT NAME_PK PRIMARY KEY(NameID) ); CREATE TABLE PHONE ( NameID Integer NOT NULL, PhoneNumber varChar(15) NOT NULL, NumType varChar(5) NOT NULL, CONSTRAINT PHONE_FK FOREIGN KEY(NameID) REFERENCES NAME(NameID), CONSTRAINT PHONE_PK PRIMARY KEY(NameID) ); But when attempting to add values with this code: INSERT INTO NAME (NameID, Name) VALUES (default, 'John Doe