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Mysql error code duplicate key

but the number of rows affected can be 0 as well as the 2 or 1 values mentioned above, if the ON DUPLICATE KEY. Error 1022: Can' t write; duplicate key in table. I appended a number to mine so I could easily trace the number of occurrences. Check if database name already exist in Mysql, and rename the old one. Change the Foreign key name in MySQL. If a constraint in a table is named boy with a foreign key X The next constraint with the foreign key X can be called boy1. I have a project where on a weekly basis I import several large datasets that contain incorrect data, such as duplicate employee IDs where they should not be duplicates. In an effort to flag the duplicates, I try the following code: ALTER TABLE. I searched through the prior posts but didn' t quite find the answer, so here it goes. I have this table. CREATE TABLE ` leags` ( ` lid` int( 10) NOT NULL AUTO_ INCREMENT, ` lName` varchar( 255) NOT NULL, ` description` varchar( 255).

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  • Video:Mysql duplicate error

    Error duplicate mysql

    Not all MySQL error numbers have corresponding SQLSTATE values. Before a series reaches GA status, new codes may still be under development and subject to change. Message: Can' t write; duplicate key in table ' % s'. Use " Perror 121" on command line : MySQL error code 121: Duplicate key on write or update. At the end of the log,. It may be deleted as a duplicate post by admin. The answer is, i. Your Foreign key names must be unique. Welcome to relational databases in MySQL! You can' t have two foreign keys named the same thing across the whole query. PRIMARY KEY ( ` int_ supr_ id` ), CONSTRAINT ` fk_ parent_ id` FOREIGN KEY ( ` int_ supr_ id` ). Your code and schema are OK. You probably trying on previous version of table.

    Your table even has no UNIQUE, so that error is impossible on that table. Backup data from that table, drop it. You are trying to insert two rows with the same primary key. INSERT INTO ARTICULOS VALUES ( ' Tallarines', 20, 2, ' Primera', 120, 100, 100) ; INSERT INTO ARTICULOS VALUES ( ' Tallarines', 20, 1, ' Segunda', 99, 50, 100) ;.