MySQL说: 1064 - You have an error in your SQL syntax;checkthemanualthat correspondstoyour MySQLserverversionfortherightsyntaxtousenear'area(AreaID)'atline3 Run Code Online (Sandbox Code Playgroud) 我究竟做错了什么? mysqlsqlconstraintsforeign-keysforeign-key-relationship ...
Re: foreign keys in MySQLWorkbench 462 Menoo Trogdor September 11, 2019 09:01AM Re: foreign keys in MySQLWorkbench 1052 Peter Brawley September 11, 2019 10:01AM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective ...
Foreign key constraints are supported for theInnoDBstorage engine only. For other storage engines, the foreign key syntax is correctly parsed but not implemented. For more information, seeFOREIGN KEY Constraint Differences. MySQL Workbench enables you to add a foreign key from within the table editor...
Experiment with the other tools on the vertical toolbar. Delete a relationship by selecting the eraser tool and clicking the line joining two tables. Create a view, add a text object, or add a layer. Save your changes to a MySQL Workbench model file (.mwbextension) by choosingSavefrom the...
Syntax ALTERTABLEtbl_nameDROPFOREIGNKEYforeign_key_name; SQL Copy Example ALTERTABLEteacherDROPFOREIGNKEYteacher_ibfk_1; SQL Copy After dropping the foreign key link with the master table, add this foreign in your child table with constraints like delete cascade. ...
"Foreign Key Options -> Skip in SQL generation" does not work Submitted: 12 Sep 2013 13:41Modified: 16 Oct 2013 13:59 Reporter: Rasmus Schultz Email Updates: Status: No Feedback Impact on me: None Category: MySQL WorkbenchSeverity: S3 (Non-critical) ...
Bug #51990Foreign Key problems Submitted:12 Mar 2010 12:33Modified:5 Jul 2013 13:22 Reporter:Martin PirringerEmail Updates: Status:ClosedImpact on me: None Category:MySQL Workbench: ModelingSeverity:S3 (Non-critical) Version:5.2.16OS:Windows (7) ...
As I teach students how to create tables in MySQL Workbench, it’s always important to review the meaning of the checkbox keys. Then, I need to remind them that every table requires a natural key from our prior discussion on normalization. I explain that a natural key is a compound ...
SET FOREIGN_KEY_CHECKS=0; ALTER TABLE `currency` CHANGE COLUMN `id` `id` INT(11) NOT NULL, DROP PRIMARY KEY; ALTER TABLE currency ADD PRIMARY KEY (code); SET FOREIGN_KEY_CHECKS=1; MySQL throws the below exception: The query encountered an error while attempting to rename the database ...
-- MySQL Workbench Forward Engineering SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0; SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0; SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES'; ...