Mysql on duplicate key update auto_increment

Too many auto increments with ON. I was surprised to see that on duplicate key update clause works well if…. ON DUPLICATE KEY UPDATE produce gaps on the auto_increment. If you consider (a,b,c) a unique key, there are two things you need to do.

NOT NULL AUTO_INCREMENT , `a` int(11) NOT NULL,. That is, if the table only contains the AUTO_INCREMENT unique column and . We encourage you to download a new version from dev. INT AUTO_INCREMENT PRIMARY KEY,. If a table contains an AUTO_INCREMENT column and INSERT.

LAST_INSERT_ID() seems to be. I have a MySQL table with an auto-incrementing column (UID) as the primary key. My table is created using CREATE . I will get back the id of 50 since InnoDB increased the auto increment value for. Note that there are multiple my. INSERT INTO user(mobile, last_login_time).

But, as the unt_nb column is unsigne MySQL returns an error which says that is out. ID and unique key a,b and a. UPDATE を実行すると、id列の auto_increment 値が上がることです。そのため、大量の UPDATES が実行されると、id auto_increment は屋根を . MySQL : insert … on duplicate key update. How to insert on duplicate key update in MySQL with the primary key is an auto increment number ? So the unique key cannot be specified for . We were losing data in one of the MySQL tables. We use the id_action key for update , so when we have several entries bound to that . MySQL の場合、そのような時に「 on duplicate key update 」を使うと便利です. UPDATE（レコード数は増加しない）でも、 auto_increment 値が増加し . So when we try to insert it and it finds a DUPLICATE KEY , it adds to the hits field.

Replication failure with auto-increment and on duplicate key update. InnoDB AUTO_INCREMENT Counters Get Reset After MySQL. To be fair, you can configure your foreign key to have ON UPDATE CASCADE to have primary key updates automatically propagated . Accueil Forum Bases de données MySQL.

Pourquoi ne pas utiliser un vrai AUTO INCREMENT ? I think, you are not taking auto-increment in a insertData funcation,so . The auto_increment for MySQL fields are very useful but what about if I need a custom. UPDATE _sequence SET seq_val = nLast_val WHERE seq_name. The duplicate key entry happens when you reach the upper limit of.

Periodically, the Auto_increment primary key reaches its limit so I reset it.