Modern enterprises increasingly require centralized identity management and seamless single sign-on (SSO) across cloud platforms. Oracle addresses this need by enabling Microsoft Entra ID (MS‑EI) integration for Oracle Databases running on Oracle Exadata Database Service on Dedicated Infrastructure . This blog walks through how MS‑EI authentication and authorization works , key prerequisites , networking and TLS requirements , and the supported authentication flows - from a DBA and cloud architect perspective. Why Integrate Microsoft Entra ID with Oracle Exadata? By integrating Oracle Database with Microsoft Entra ID (formerly Azure AD), organizations can: Centrally manage database users and access policies in MS‑EI Enable SSO-based database authentication Eliminate local database passwords Use modern OAuth2 token-based authentication Align Oracle access controls with enterprise identity governance This integration is supported for: ...