What Is Oracle Integration Cloud
Oracle Integration Cloud (OIC) is a cloud-based integration platform that connects applications, automates business processes, and provides visual development tools for building integrations without extensive coding. For Oracle database and APEX developers, OIC bridges the gap between on-premise databases, Oracle SaaS applications (ERP Cloud, HCM Cloud), and third-party services.
Key Components
OIC consists of several integrated capabilities. Integrations are the core: visual flows that move and transform data between systems using pre-built adapters. Process Automation provides visual workflow design for approval processes and human tasks. Visual Builder lets you build web and mobile applications with a drag-and-drop interface. File Server provides managed SFTP for file-based integrations.
Adapters: Pre-Built Connectivity
OIC includes dozens of pre-built adapters for Oracle and third-party systems. The Oracle Database adapter connects to on-premise or cloud databases to execute SQL, call stored procedures, and poll for new data. The Oracle ERP Cloud adapter provides operations for invoices, journals, suppliers, and purchase orders. The REST adapter connects to any REST API. Other adapters cover Salesforce, SAP, ServiceNow, Workday, and hundreds more.
Integration Patterns
OIC supports several integration patterns. App Driven Orchestration is triggered by an external event (REST call, business event) and executes a series of steps. Scheduled Orchestration runs on a timer and is ideal for batch synchronization. File Transfer moves files between SFTP servers and cloud storage. Publish/Subscribe uses events for loose coupling between systems.
A Simple Example: EBS to ERP Cloud
A common OIC integration synchronizes data from on-premise EBS to ERP Cloud. The flow runs on a schedule, queries the EBS database for new or changed records using the Database adapter, transforms the data to match the ERP Cloud format using the visual mapper, and calls the ERP Cloud REST API to create or update records. Error records are logged to a separate database table for review.
When to Use OIC vs Custom Code
Use OIC when you need to connect Oracle SaaS applications, when you need visual development that business analysts can maintain, when you need built-in monitoring, error handling, and retry logic, or when the integration pattern matches one of OIC’s strengths (app-to-app sync, event processing, file transfer). Write custom PL/SQL integrations when the logic is purely database-to-database within the same network, when you need sub-second latency, or when the volume exceeds OIC’s throughput limits.