How to Correctly Cast a VARCHAR Column to an UNSIGNED INTEGER in MySQL?

Correctly Casting VARCHAR to UNSIGNED INT in MySQL

Many users struggle to correctly cast a VARCHAR column, such as PROD_CODE, to an UNSIGNED INTEGER in MySQL. Previous attempts often lead to syntax errors. This guide provides the accurate method.

MySQL's CAST() function allows for various data type conversions. The resulting data type can be BINARY, CHAR, DATE, DATETIME, DECIMAL, SIGNED INTEGER, TIME, or UNSIGNED INTEGER.

To convert PROD_CODE to an unsigned integer, use the following syntax:

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

This query will successfully convert the VARCHAR values within the PROD_CODE column to their unsigned integer equivalents. Remember that this conversion will only succeed if the PROD_CODE values are actually representable as integers. Non-numeric values will likely result in an error or unexpected behavior.

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