Home/ Questions/Q 7775161
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-01T17:33:35+00:00

I am using MySql with JDBC…the below is my table definition CREATE TABLE `A`

  • 0

I am using MySql with JDBC…the below is my table definition

CREATE TABLE `A` (
  `id` int(255) NOT NULL AUTO_INCREMENT,
  `type` varchar(255) NOT NULL,
  `value` varchar(255) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `unq` (`type`(50),`value`(50))
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

At the moment i am using statement in order to batch insert rows to that table with RETURN_GENERATED_KEYS option in order to relate the id to other table.

I want the ability to perform that operation but when / if DUPLICATE ENTRY occur ( the same combination of type & value ) to continue with the transaction as like nothing happens but still to get the generated keys, and if DUPLICATE ENTRY occur retrieve the existing key.

Thanks

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    use IGNORE keyword 

    INSET IGNORE ....

    as Quoted in Mysql

    If you use the IGNORE keyword, errors that occur while executing the
    INSERT statement are treated as warnings instead. For example, without
    IGNORE, a row that duplicates an existing UNIQUE index or PRIMARY KEY
    value in the table causes a duplicate-key error and the statement is
    aborted. With IGNORE, the row still is not inserted, but no error is
    issued.

    alternative syntax

    INSERT … ON DUPLICATE KEY UPDATE

    • 0