How to Change Multiple Column Data Types from FLOAT to INT in MySQL?

Altering Column Data Types in MySQL

Problem:

You need to modify the data type of multiple columns in your MySQL table, converting them from float to int. To ensure data integrity, no data currently resides in these columns.

Solution:

MySQL provides a simple method for altering column data types through the ALTER TABLE statement. Here's how to achieve this:

ALTER TABLE tablename MODIFY columnname INTEGER;

Usage:

1. Replace tablename with the name of the table containing the columns you want to modify.
2. Replace columnname with the name of each column whose data type you want to change to integer.

By executing this statement, the data type of the specified column(s) will be changed to integer.

Additional Considerations:

• If you have data in the columns you want to modify, you'll need to take extra precautions to preserve it during the alteration process.
• Consider using a MySQL client GUI or generating a script to handle multiple column modifications simultaneously, depending on the number of columns you wish to alter.

The above is the detailed content of How to Change Multiple Column Data Types from FLOAT to INT in MySQL?. For more information, please follow other related articles on the PHP Chinese website!