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This article introduces the knowledge of "how to convert strings to integers in mysql". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Methods: 1, using "string + 0" conversion, syntax is "(column+0)"; 2, using CONVERT function conversion, syntax is "CONVERT (column,SIGNED)"; 3, using CAST function conversion, syntax is "CAST (column as SIGNED)".

The operating environment of this tutorial: windows10 system, mysql8.0.22 version, Dell G3 computer.

How to convert a string to an integer in mysql

1. Directly use addition

String + 0

Examples are as follows

Example:select * from orders order by (column+0) desc

two。 Use the CAST function

CAST (column as type)

The CAST () function converts a value of any type to a value of the specified type. The target type can be one of the following: BINARY,CHAR,DATE,DATETIME,TIME,DECIMAL,SIGNED,UNSIGNED.

two。 Use the CONVERT function

CONVERT (column, type)

MySQL CONVERT () provides a way to convert data between different character sets.

Note:

The type here can be:

Floating point numbers: DECIMAL

Integer: SIGNED

Unsigned integers: UNSIGNED

Example:select * from orders order by CONVERT (column,SIGNED) descselect * from orders order by CAST (column as SIGNED) desc "how to convert strings to integers in mysql" ends here. Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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