How to modify field names of oracle

The steps to modify the field name in an Oracle table are as follows: Connect to the database. Use the ALTER TABLE statement to modify the field name. Specify the table name and the old field name. Specify the new field name. Submit changes.

How to modify field names in Oracle tables

Modifying the field names in a table is a simple process in Oracle. This can be done using the following steps:

1. Connect to the database

Connect to your Oracle database using your favorite SQL client tool such as SQL*Plus or SQL Developer.

2. Use the ALTER TABLE statement

Use the ALTER TABLE statement to modify the field name. The syntax of this statement is as follows:

 <code>ALTER TABLE table_name RENAME COLUMN old_column_name TO new_column_name;</code>

3. Specify the table name and the old field name

In the statement, replace table_name with the name of the table whose field name you want to modify. Replace old_column_name with the old field name.

4. Specify the new field name

Replace new_column_name with the field name you want to change.

For example:

Suppose you have a table called customers with a field named first_name . To change the name of this field to given_name , use the following statement:

 <code>ALTER TABLE customers RENAME COLUMN first_name TO given_name;</code>

5. Submit changes

After executing the ALTER TABLE statement, you need to submit changes to apply them. You can do this using the COMMIT statement:

 <code>COMMIT;</code>

Notice:

• For some database operations, modifying the field name may affect the application and scripts.
• Before making any changes, it is recommended to back up the database.
• If you encounter an error while modifying the field name, check your syntax and make sure you have the permissions you need to modify the table.

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