Sql Error Duplicate Entry For Key

MySQL Tutorial 1 - Remove Duplicate Rows from MySQL Table

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Jul 24, 2013. The error says it all: Duplicate entry ''. So run the following query: SELECT unique_id,COUNT(unique_id) FROM yourtblname GROUP BY unique_id HAVING COUNT(unique_id) >1. This query will also show you the problem. SELECT * FROM yourtblname WHERE unique_id=''. This will show you where.

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Nov 12, 2015. On your table cl56-goldeng.users , the field email was specified on creation to not allow more than 1 of the same value to be allowed into it. This is done using the UNIQUE identifier on table creation in MySQL. You can see more on the UNIQUE identifier at this link. You have 2 options that you could go.

I'm trying to insert a huge list of users to a MySQL database but everytime I try I get the error: #1062 – Duplicate entry '' for key 2 It. in SQL so 'duplicate.

How to fix: MySQL Duplicate entry for key PRIMARY. Whenever you use partitions in mysql that seems to. I was getting the error as Duplicate entry '127' for key.

SQL – In this SQL Interview Questions. An index creates an entry for each value and hence it will be faster to retrieve data. This index does not allow the field to have.

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This looks to be a duplicate of #1721, however as a test case is presented here I will not mark it as such yet. What character set are you using?

MySQL skip duplicate replication errors -. – Normally MySQL replication will stop whenever there is an error running a query on the slave. This happens in order for us to be able to identify the.

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Here is my dilemma: mysql> describe console;. ERROR 1062: Duplicate entry '1' for key 1 Now how do I get rid of this duplicate key?

How to fix: MySQL Duplicate entry for key PRIMARY on. – Aug 20, 2009. My exact error is: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'user-menu' for key 'PRIMARY' A few people here have mentioned InnoDB tables. that cuts down the number of tables I have to check significantly so I guess I just have to try and work it out by hand. backup and.

Oct 30, 2012. Your code and schema are OK. You probably trying on previous version of table. http://sqlfiddle.com/#!2/9dc64/1/0. Your table even has no UNIQUE, so that error is impossible on that table. Backup data from that table, drop it and re-create. Maybe you tried to run that CREATE TABLE IF NOT EXIST.

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Error Code: 1062. Duplicate entry '1' for key. Opening "MyTable" and importing with a SQL dump will throw exactly. ERROR 1062: Duplicate entry '0' for key.

> > Thomas> I got the same error in my application > Thomas> ERROR 1062: Duplicate entry '1' for key 1 > > Thomas. Duplicate entry '1' for key 1 mysql.

When creating a primary key or unique constraint after loading the data, you can get a “Duplicate entry for key 'PRIMARY'” error. If the data in the source database is valid and there are no any duplicates you should check which collation is used in your MySQL database. By default, MySQL uses case-insensitive collation.

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