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How to Resolve MySQL Syntax Errors Caused by Reserved Words in Table or Column Names?

Barbara Streisand
Barbara StreisandOriginal
2024-12-30 10:36:14399browse

How to Resolve MySQL Syntax Errors Caused by Reserved Words in Table or Column Names?

Syntax Error Due to Reserved Word as Table or Column Name in MySQL


Overview


In MySQL, certain words like SELECT, INSERT, DELETE, and KEY are reserved words. Reserved words have special meaning within the database and cannot be used as table names, column names, or other identifiers unless you quote them with backticks (`).

The Problem


The following query will result in a syntax error because KEY is a reserved word in MySQL:


<br>INSERT INTO user_details (username, location, key)<br>VALUES ('Tim', 'Florida', 42)<br>

The Solution


To fix the issue, you can either avoid using reserved words as table or column names or wrap the reserved word in backticks when referring to it. Here's how:

1. Using a Different Column Name


The simplest solution is to use a different name for the column that is not a reserved word.

2. Using Backticks


If you must use a reserved word, wrap it in backticks. For example, to fix the query above, change:


<br>key<br>

to:


<br>key<br>

The resulting query will be:


<br>INSERT INTO user_details (username, location, key)<br>VALUES ('Tim', 'Florida', 42)<br>

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