Renaming columns in a database table is a common task that database administrators perform. In this blog post, we will learn how to rename a column in an Oracle database. Renaming a column can be a bit tricky, but with the right steps, it’s a straightforward process.
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Before we dive into the process of renaming a column, there are a few things that you need to be aware of:
- You must have the
ALTER TABLEprivilege to rename a column in an Oracle database.
- Renaming a column affects all the data stored in the table, so make sure to take a backup of your data before making any changes.
- You must have a basic understanding of SQL syntax to follow along with this tutorial.
Renaming a Column
To rename a column in an Oracle database, you need to use the ALTER TABLE command. The basic syntax for renaming a column in Oracle is:
ALTER TABLE table_name RENAME COLUMN old_column_name TO new_column_name;
Let’s consider an example to understand the process of renaming a column in an Oracle database.
Suppose, you have a table named
customers with the following structure:
Now, let’s say you want to change the name of the
CUSTOMER_PHONE_NO column to
PHONE_NUMBER. To do that, you need to run the following SQL statement:
ALTER TABLE customers RENAME COLUMN CUSTOMER_PHONE_NO TO PHONE_NUMBER;
And that’s it! The column
CUSTOMER_PHONE_NO has been successfully renamed to
Renaming a Column In Beekeeper Studio
If you’re using Beekeeper Studio, you can rename a column without writing any SQL - right click the table, select
View Structure and edit the table schema with the visual interface:
In this blog post, we learned how to rename a column in an Oracle database. We covered the prerequisites for renaming a column and walked through the process of renaming a column using the ALTER TABLE command. Renaming a column in an Oracle database is a straightforward process, but it is important to be cautious and take a backup of your data before making any changes.