Converting Data Types in MySQL: Using CAST() to Cast Values as Integers

Secondary keywords: mysql cast to int, mysql cast int to string, cast as int mysql Type: Blog Post

In MySQL, the CAST() function is used to convert data from one data type to another. When you need to convert a value to an integer data type, you can use CAST() to achieve this. Here’s how you can use CAST() to cast a value as an integer:

SELECT CAST(column_name AS SIGNED) AS integer_column_name
FROM your_table;

Replace column_name with the name of the column you want to cast, and your_table with the name of your table. The AS SIGNED keyword specifies that the value should be converted to a signed integer. If the value cannot be converted, MySQL will return NULL.

For example, if you have a column named price containing numeric values stored as strings, and you want to convert it to integers:

SELECT CAST(price AS SIGNED) AS integer_price
FROM products;

This query will return the price column values cast as integers under the alias integer_price.

Remember to ensure that the values in the column can actually be converted to integers; otherwise, you may encounter errors or unexpected results.

There you go! Using the CAST() function provides a straightforward way to convert data types within MySQL queries, making it easier to manipulate and work with different types of data as needed.