Find out version in Oracle

We can find out version of the Oracle database by using below query:-

SELECT BANNER FROM V$VERSION;

SELECT * FROM V$VERSION;

Here are 5 frequently asked questions (FAQs) about finding out the version in Oracle:-

1. How do I check the Oracle Database version?

   - You can check the Oracle Database version by querying the `v$version` or `v$instance` data dictionary views. These views provide information about the database version, edition, and other details. For example:

     

     SELECT * FROM v$version;

     

     This query will return the version information for various components of the Oracle Database.

2. Can I determine the Oracle Database version without connecting to the database?

   - No, you cannot determine the Oracle Database version without connecting to the database. Version information is stored within the database and can only be accessed through a database connection.

3. What does the Oracle Database version number consist of?

   - The Oracle Database version number typically consists of several components, including the major version number, release number, and patch set update (PSU) number. For example, Oracle Database 19c has a major version number of 19, a release number of 1, and may have a PSU number indicating a specific patch set update.

4. How often should I check the Oracle Database version?

   - It's a good practice to check the Oracle Database version periodically, especially when planning upgrades, applying patches, or troubleshooting compatibility issues with applications or third-party tools. Additionally, version information can help ensure that your database is supported by Oracle and receives necessary updates and security patches.

5. Can I determine the Oracle Database version from SQL*Plus or SQL Developer?

   - Yes, you can determine the Oracle Database version from SQL*Plus or SQL Developer by executing the same SQL query against the `v$version` or `v$instance` views. Both SQL*Plus and SQL Developer provide a SQL interface to interact with the database and execute queries.

These FAQs should provide a comprehensive understanding of how to find out the version in Oracle Database and why version information is important for managing and maintaining databases.