How to fix MySQL duplicate entry for key primary?
How to fix: MySQL Duplicate entry for key PRIMARY on…
- Create a backup of the database by issuing: mysqldump -uUSER -pPASSWORD DBNAME > /tmp/my_backup. sql.
- Drop and recreate the database. drop database DBNAME; create database DBNAME;
- Reload the import. mysql -uUSER -pPASSWORD DBNAME < /tmp/my_backup. sql.
What does error 1062 mean?
Causes of error code “Error 1062” If you have received this warning on your PC, it means that there was a malfunction in your system operation.
What does duplicate key error mean?
A duplicate key error means that you have tried to insert a row with the same key value as some other row already indexed by the named index.
Why is there an error code 1062 in MySQL?
This error code 1062 is because of the duplicate entry. You are trying to insert a value which is already exists in the primary key field. Recently, I solved this issue by adding auto_increment to primary key field.
Is there a duplicate key in mysql-1062?
If you try INSERT a duplicate values for a primary key (or a unique index) you will always get that error. There are a couple of ways around it: check before you insert and either do an update (if something might have changed) or just don’t do anything.
Why is MySQL error 1 for duplicate entry’1′?
I had this same issue, my problem was I had a primary key column called unique_id and when you try to add two of the same value in that primary keyed column, it comes back with the error below. A primary key column’s data is all suppose to be different, so that bottom 1 I changed to 3 and the error went away.
Is there a duplicate entry in the table?
It isn’t saying that there is a duplicate entry in the table already, it is saying that there is already one entry in there with that value for the primary key and it is refusing to insert a second for that reason.