ODI学习笔记-ODI update key 增量更新

Update Key and Incremental Update Strategy

If you plan to use an Incremental Update strategy to populate your target datastore,

you will need to consider setting an update key for your interface. This will indicate

the subset of columns of your target datastore that you want to use to compare

your flow data with your target existing data to determine what should be inserted

and what should be updated. By default, ODI sets this update key to the primary

key of your target datastore. In some cases, using the primary key as the update key