Staging Schemas FAQS

1. What is a staging schema in ODI 12c?
• A staging schema is an optional temporary storage area used for holding data during the execution of a mapping.
• It helps in managing intermediate data before transferring it to the final target.
2. Why would I use a staging schema?
• A staging schema is used to store data temporarily while transformations or data processing occur.
• This is especially useful when the source and target datastores are not suitable for intermediary data storage.
3. Can I specify a different staging area than the source and target datastores?
• Yes, you can define a different staging area by specifying a separate staging schema.
• This allows you to keep your source and target datastores distinct from the temporary staging area.
4. How do I define a staging schema in ODI 12c?
• To define a staging schema, you must set the appropriate logical and physical schemas in the execution context of the mapping before creating the mapping itself.
5. What is the execution context in ODI 12c?
• The execution context is where you define which schemas (physical and logical) will be used during the execution of the mapping.
• This includes the staging, source, and target schemas.
6. Do I have to always use a staging schema in my mappings?
• No, using a staging schema is optional.
• It is only needed when you require an intermediate data storage area for transformations or when the source and target datastores are not suitable for storing intermediate data.
7. Can I use the same staging schema for multiple mappings?
• Yes, you can reuse the same staging schema for multiple mappings if they require similar temporary storage for data processing.
8. Can the staging schema be different from the source and target schemas?
• Yes, you can configure a different staging schema to ensure that intermediate data is handled separately from the source and target datastores.
9. What happens if I don't define a staging schema?
• If no staging schema is defined, ODI will perform the mapping without using a temporary storage area.
• The data will directly move from the source to the target, which may not be optimal for complex transformations.
10. Can I automate the use of staging schemas in ODI?
• Yes, the use of staging schemas can be automated within the mapping designs and execution contexts, allowing for streamlined and efficient data processing in your integration workflows.