Loading Process Overview

1. Identify the Need for Loading Process:
• A loading process is required when source data needs to be transferred into the staging area, especially when transformations need to take place in the staging area, and the source schema is on a different server than the staging area.
2. Create Temporary Loading Table:
• A temporary loading table is dropped (if it already exists) and then created in the staging area. This table will hold the data temporarily before transformations or integrations take place.
3. Load Data from Source to Loading Table:
• Data is loaded from the source into the newly created loading table in the staging area. This step uses an appropriate loading method to transfer the data.
4. Repeat the Loading Process:
• Steps 2 and 3 are repeated for all source data that needs to be moved to the staging area. This ensures that all necessary data is transferred and stored in the temporary loading tables.
5. Use Data in Integration Phase:
• Once the data is loaded into the temporary loading table, it is used in the integration phase. In this phase, the data is processed and moved into the integration table as per the integration logic.
6. Drop Temporary Loading Table:
• After the integration phase and before the mapping process completes, the temporary loading table is dropped to clean up and free up resources in the staging area.