How to modify table name in oracle

In Oracle database, if you need to change the name of the table, you can use the ALTER statement. Before modifying the table name, please back up the data of the original table to avoid data loss.

The following are the steps to modify the table name:

Step 1: Log in to the Oracle database with administrator privileges.

Step 2: Use the following command to find the table that needs to be changed:

SELECT table_name FROM user_tables WHERE table_name = 'old_table_name';

In the above command, replace "old_table_name" with the original table name to find the table whose name needs to be changed.

Step 3: Use the following ALTER statement to change the table name:

ALTER TABLE old_table_name RENAME TO new_table_name;

In the above statement, replace "old_table_name" with the original table name and "new_table_name" with the new table name.

Note: In Oracle database, table names should not contain spaces or use reserved words as table names.

Step 4: Use the following command to verify whether the new table name takes effect:

SELECT table_name FROM user_tables WHERE table_name = 'new_table_name';

If the table name is successfully changed, the new table name will be returned.

In addition to using the ALTER statement to modify the table name, you can also use Oracle SQL Developer to right-click the target table and select "Rename" to change the table name.

Summary:

For Oracle database administrators, it is very important to understand how to modify table names and pay attention to issues such as reserved words. The table name can be changed using the ALTER statement, and the table name can be modified more conveniently using SQL Developer. In actual operation, you also need to pay attention to backing up and verifying whether the table name is successfully changed.

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