How to Insert Non‑Duplicate Data in MySQL Using INSERT IGNORE, ON DUPLICATE KEY UPDATE, and REPLACE INTO

This article explains several MySQL techniques—INSERT IGNORE, ON DUPLICATE KEY UPDATE, and REPLACE INTO—to efficiently insert large volumes of data while preventing duplicate primary‑key or unique‑key rows, and provides practical code examples for single and batch operations.

INSERT IGNOREON DUPLICATE KEY UPDATEREPLACE INTO

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How to Insert Non‑Duplicate Data in MySQL Using INSERT IGNORE, ON DUPLICATE KEY UPDATE, and REPLACE INTO

Top Architect

Jul 11, 2021 · Databases

Handling Duplicate Inserts in MySQL: Strategies and MyBatis Batch Example

The article discusses efficient ways to perform bulk inserts in MySQL while avoiding duplicate records, covering techniques such as INSERT IGNORE, ON DUPLICATE KEY UPDATE, INSERT…SELECT…WHERE NOT EXISTS, REPLACE INTO, and demonstrates a practical MyBatis implementation with a unique mobile_number constraint.

Batch InsertINSERT IGNOREMyBatis

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Handling Duplicate Inserts in MySQL: Strategies and MyBatis Batch Example

Code Ape Tech Column

Mar 16, 2021 · Databases

How Unique Indexes Affect Auto-Increment and How to Handle Duplicate Keys in MySQL

This article explains how MySQL unique indexes influence auto‑increment behavior, compares unique constraints with primary keys, and demonstrates three techniques—INSERT IGNORE, REPLACE INTO, and INSERT … ON DUPLICATE KEY UPDATE—to avoid duplicate‑key errors, including their effects on auto‑increment values and potential deadlocks.

Duplicate KeyINSERT IGNOREREPLACE INTO

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How Unique Indexes Affect Auto-Increment and How to Handle Duplicate Keys in MySQL

Architecture Digest

Mar 15, 2021 · Databases

Impact of UNIQUE Indexes in MySQL and Strategies to Avoid Duplicate Key Errors

This article explains how MySQL UNIQUE indexes affect data insertion and auto‑increment behavior, compares them with primary keys, and presents three techniques—INSERT IGNORE, REPLACE INTO, and INSERT … ON DUPLICATE KEY UPDATE—to prevent duplicate‑key failures, including deadlock considerations.

Duplicate KeyINSERT IGNOREREPLACE INTO

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Impact of UNIQUE Indexes in MySQL and Strategies to Avoid Duplicate Key Errors

How to Insert Non‑Duplicate Data in MySQL Using INSERT IGNORE, ON DUPLICATE KEY UPDATE, and REPLACE INTO

Handling Duplicate Inserts in MySQL: Strategies and MyBatis Batch Example

How Unique Indexes Affect Auto-Increment and How to Handle Duplicate Keys in MySQL

Impact of UNIQUE Indexes in MySQL and Strategies to Avoid Duplicate Key Errors

How to Insert Non‑Duplicate Data in MySQL Using INSERT IGNORE, ON DUPLICATE KEY UPDATE, and REPLACE INTO