How can the field length be altered in Oracle?

To change the length of a field in an Oracle database, you can use the ALTER TABLE statement. Here is an example:

ALTER TABLE table_name
MODIFY column_name VARCHAR2(new_length);

“In this statement, table_name refers to the name of the table to be modified, column_name refers to the name of the field to be modified, and new_length refers to the new length of the field. You can modify the type and length of the field as needed, and then execute the above statement to successfully modify the field length.”