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How Do I Execute SQL Queries on Tables with Reserved Keywords in MySQL?

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Release: 2024-12-06 02:33:09
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How Do I Execute SQL Queries on Tables with Reserved Keywords in MySQL?

Executing SQL Queries on Tables with Protected Keywords in MySQL

When attempting to execute an SQL query on a table that shares the same name as a protected keyword in MySQL, developers may encounter syntax errors. This is because protected keywords are reserved by the database system for specific purposes.

Example Issue:

The following query attempts to select data from a table named "order":

mysql_query("SELECT * FROM order WHERE orderID = 102;");
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However, this query fails with the error:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order WHERE orderID = 102' at line 2
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Solution: Escaping Keywords

To successfully query tables with names that conflict with reserved keywords, enclose the table name in escape characters, such as backticks (`). This signals to MySQL that the enclosed identifier should be interpreted as a table name, not a keyword.

mysql_query("SELECT * FROM `order` WHERE orderID = 102;");
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Reserved Keywords in MySQL

To avoid potential conflicts, it's recommended to avoid using reserved keywords as table or field names. A comprehensive list of reserved keywords can be found at https://dev.mysql.com/doc/refman/5.5/en/keywords.html.

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