Understanding INSERT IGNORE in MySQL

Usually, if there is an error during the INSERT command execution, the error is thrown and the execution stopped.

MySQL supports something named IGNORE along with INSERT, which captures the error as a WARNING.

Consider the following

CREATE TABLE 'EmployeeDetails' (	'Id' INT(5) NOT NULL PRIMARY KEY,	'Name' VARCHAR(50) NOT NULL COLLATE 'utf8_bin' )COLLATE='utf8_bin'ENGINE=InnoDB;

Here, the Id is a PRIMARY KEY and hence duplicates will not be allowed.

The query below will be successful:

INSERT IGNORE INTO EmployeeDetails (Id, Name) VALUES (1,"John")

Let us execute the below query which will result in warning:

INSERT IGNORE INTO EmployeeDetails (Id, Name) VALUES (1,"Steve") Warning: Duplicate entry '1' for key 'PRIMARY'

Now, the execution of the query below will display the warnings:

Query:SHOW WARNINGS;+------------+----------+-------------------------------------------+| Level      | Code     | Message									|+------------+----------+-------------------------------------------+| Warning    | 1062     | Duplicate entry '1' for key 'PRIMARY'		|+------------+----------+-------------------------------------------+
Share the Post:
Share on facebook
Share on twitter
Share on linkedin

Overview

The Latest

Top 5 B2B SaaS Marketing Agencies for 2023

In recent years, the software-as-a-service (SaaS) sector has experienced exponential growth as more and more companies choose cloud-based solutions. Any SaaS company hoping to stay ahead of the curve in this quickly changing industry needs to invest in effective marketing. So selecting the best marketing agency can mean the difference

technology leadership

Why the World Needs More Technology Leadership

As a fact, technology has touched every single aspect of our lives. And there are some technology giants in today’s world which have been frequently opined to have a strong influence on recent overall technological influence. Moreover, those tech giants have popular technology leaders leading the companies toward achieving greatness.

iOS app development

The Future of iOS App Development: Trends to Watch

When it launched in 2008, the Apple App Store only had 500 apps available. By the first quarter of 2022, the store had about 2.18 million iOS-exclusive apps. Average monthly app releases for the platform reached 34,000 in the first half of 2022, indicating rapid growth in iOS app development.