How to change the field name and data type in mysql?

1 year ago
Noah Thompson
1 minute

To change the field name and data type, you can use the ALTER TABLE statement.
Here is an example:

  1. Change field name:
ALTER TABLE table_name CHANGE old_column_name new_column_name data_type;

For example, to change the field name old_column_name to new_column_name, you can use the following statement:

ALTER TABLE table_name CHANGE old_column_name new_column_name data_type;
  1. Change the data type:
ALTER TABLE table_name MODIFY column_name new_data_type;

For example, to change the data type of the column_name field to new_data_type, you can use the following statement:

ALTER TABLE table_name MODIFY column_name new_data_type;

Please make sure to backup your data before executing the ALTER TABLE statement to prevent any accidental data loss.

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