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AWS AmazonRDS: RDS for Oracle multi-tenant PDB count and license responsibility wording

Service: AmazonRDS · 2026-10-07 · Documentation low

File: AmazonRDS/latest/UserGuide/USER_CreateDBInstance.Settings.md

Summary

Rewrites the Oracle multi-tenant configuration description to state the CDB instance can contain up to 30 tenant databases (PDBs) and that the customer is responsible for license compliance, replacing the prior edition-dependent 1-30 wording.

Security assessment

This is a licensing and configuration-clarification edit about the number of tenant PDBs in an Oracle CDB; it carries no authentication, encryption, or exposure implications.

Evidence

  * With the **Multi-tenant configuration** , your RDS for Oracle CDB instance can contain up to 30 tenant databases (PDBs). You are responsible for ensuring that the number of tenant databases (PDBs) you use complies with your license with Oracle. In the context of an Oracle database, a tenant database is a PDB. Application PDBs and proxy PDBs aren't supported. Your DB instance is created with 1 initial tenant database. Choose values for **Tenant database name** , **Tenant database master username** , **Tenant database master password** , and **Tenant database character set**. The multi-tenant configuration is permanent. Thus, you can't convert the multi-tenant configuration back to the single-tenant configuration. The minimum supported release update (RU) for the multi-tenant configuration is 19.0.0.0.ru-2022-01.rur-2022.r1.

Diff

diff --git a/AmazonRDS/latest/UserGuide/USER_CreateDBInstance.Settings.md b/AmazonRDS/latest/UserGuide/USER_CreateDBInstance.Settings.md
index 6d52e61..fde37bc 100644
--- a//AmazonRDS/latest/UserGuide/USER_CreateDBInstance.Settings.md
+++ b//AmazonRDS/latest/UserGuide/USER_CreateDBInstance.Settings.md
@@ -19 +19 @@ Console setting | Setting description | CLI option and RDS API parameter | Suppo
-  * With the **Multi-tenant configuration** , your RDS for Oracle CDB instance can contain 1–30 tenant databases, depending on the database edition and any required option licenses. In the context of an Oracle database, a tenant database is a PDB. Application PDBs and proxy PDBs aren't supported. Your DB instance is created with 1 initial tenant database. Choose values for **Tenant database name** , **Tenant database master username** , **Tenant database master password** , and **Tenant database character set**. The multi-tenant configuration is permanent. Thus, you can't convert the multi-tenant configuration back to the single-tenant configuration. The minimum supported release update (RU) for the multi-tenant configuration is 19.0.0.0.ru-2022-01.rur-2022.r1.
+  * With the **Multi-tenant configuration** , your RDS for Oracle CDB instance can contain up to 30 tenant databases (PDBs). You are responsible for ensuring that the number of tenant databases (PDBs) you use complies with your license with Oracle. In the context of an Oracle database, a tenant database is a PDB. Application PDBs and proxy PDBs aren't supported. Your DB instance is created with 1 initial tenant database. Choose values for **Tenant database name** , **Tenant database master username** , **Tenant database master password** , and **Tenant database character set**. The multi-tenant configuration is permanent. Thus, you can't convert the multi-tenant configuration back to the single-tenant configuration. The minimum supported release update (RU) for the multi-tenant configuration is 19.0.0.0.ru-2022-01.rur-2022.r1.