How to Correctly Cast VARCHAR to INT in MySQL 5.5.16?

Resolving VARCHAR to INT Casting Issues in MySQL 5.5.16

This guide addresses the common problem of converting VARCHAR columns to INT in MySQL 5.5.16. Incorrect syntax often leads to errors.

MySQL's CAST function, as detailed in its official documentation, supports several output data types, including UNSIGNED. To correctly cast a VARCHAR column to an integer, use this syntax:

<code class="language-sql">SELECT CAST(PROD_CODE AS UNSIGNED) FROM PRODUCT;</code>

This effectively converts the PROD_CODE column (containing string values) into an UNSIGNED INTEGER.

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