If your MDT thinks it is possible to cure your bile duct cancer, surgery will be needed to remove any cancerous tissue. Depending on the extent of the cancer, it may be necessary to remove: 1  the part of your bile duct that contains cancerous cells. 2  your gallbladder.
Data extraction. Data extraction is the act or process of retrieving data out of (usually unstructured or poorly structured) data sources for further data processing or data storage (data migration).
ï· Extract -- the process of reading data from a specified source database and extracting a desired subset of data. ï· Transform -- the process of converting the extracted/ acquired data from its previous form into the form it needs to be in so that it can be placed into another database.