REFERENCES `Alternative_Pathways`.`Staff` (`Emp_ID` )ĬREATE TABLE IF NOT EXISTS `Alternative_Pathways`.`Clients` (ĬREATE TABLE IF NOT EXISTS `Alternative_Pathways`. I also worked with Workbench, and in local worked perfectly, also worked good in production, until I recreate schema on production server with Forward Engineering. REFERENCES `Alternative_Pathways`.`Clients` (`Case_Number` ) One of possible cause could be default storage engine on production db. INDEX `fk_Clients_has_Staff_Clients_idx` (`Clients_Case_Number` ASC) ,ĬONSTRAINT `fk_Clients_has_Staff_Clients` INDEX `fk_Clients_has_Staff_Staff1_idx` (`Staff_Emp_ID` ASC) , Cannot add or update a child row: a foreign key constraint fails (DBNAME1. PRIMARY KEY (`Clients_Case_Number`, `Staff_Emp_ID`) , Table `Alternative_Pathways`.`Clients_has_Staff`ĬREATE TABLE IF NOT EXISTS `Alternative_Pathways`.`Clients_has_Staff` ( Any other help you guys could offer?ĮRROR: Error 1215: Cannot add foreign key constraint The whole idea of adding foreign keys into SQL code is super confusing. Now when I type in the following code down below down, I get hit with the message 'Cannot add foreign key constraint'. Efectivamente, como te recomienda AgustinG, creando un índice en clientes. I have done both of these things, if I'm not mistaken. I am new to learning SQL and I have a project that just doesnt make sense to me. SQL query: CREATE TABLE IF NOT EXISTS Gam3ty.FrequentlyUsedLocation ( idFrequentlyUsedLocation INT NOT NULL, UseridUser INT NOT NULL, UserCollegeidCollege INT NOT NULL, PRIMARY KEY. I am currently working through my MySQL task and have come across a small hiccup whilst using foreign keys. I've tried to search for the answer here, but everything I've found has said to either set the db engine to Innodb or to make sure the keys I'm trying to use as a foreign key are primary keys in their own tables. 1215 - Cannot add foreign key constraint. A foreign key relationship involves a parent table that holds the initial column values, and a child table with column values that reference the parent column values. I am trying to forward engineer my new schema onto my db server, but I can't figure out why I am getting this error. The first thing to do is to make sure that you are using the correct syntax for creating the FOREIGN KEY constraint. MySQL supports foreign keys, which permit cross-referencing related data across tables, and foreign key constraints, which help keep the related data consistent.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |