Updating reference tables mysql No registration direct live sex


09-Jun-2020 21:06

Many server admins default the My SQL daemon to 'safe mode'.

If UPDATE gives an error like this:"You are using safe update mode and you tried to update a table without.."..it may be that your file must be edited to disable safemode. In order for the change in the file to take effect, you must have permission to restart mysqld in the server OS environment.

row *************************** Table: ibtest11c Create Table: CREATE TABLE `ibtest11c` ( `A` int(11) NOT NULL auto_increment, `D` int(11) NOT NULL default '0', `B` varchar(200) NOT NULL default '', `C` varchar(175) default NULL, PRIMARY KEY (`A`,`D`,`B`), KEY `B` (`B`,`C`), KEY `C` (`C`), CONSTRAINT `0_38775` FOREIGN KEY (`A`, `D`) REFERENCES `ibtest11a` (`A`, `D`) ON DELETE CASCADE ON UPDATE CASCADE, CONSTRAINT `0_38776` FOREIGN KEY (`B`, `C`) REFERENCES `ibtest11a` (`B`, `C`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=INNODB CHARSET=latin1 1 row in set (0.01 sec) mysql.

When you drop a table, any constraints that were defined in the statement used to create that table are also dropped.

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It is possible to implement other semantics using triggers.

Disclaimer: The examples presented in this post are hypothetical ideas of how to achieve similar types of results. The majority, if not all, of the examples provided are performed on a personal development/learning workstation-environment and should not be considered production quality or ready. Use those practices that best benefit your needs and goals.