The following operations are supported. For a formal definition, please review the Service Description.

• DSKeywordSearch
  Searches registry for keyword. To AND keywords, set andKeys to 'true', otherwise keywords will be OR'd.
• DSQuery
  Input SQL Query. This can query the entire registry database. Requires passphrase.
• DSQueryRegistry
  Input WHERE predicate for SQL Query. This queries the Resource table only.
• DeleteEntry
  Delete an individual record - returns the number of rows deleted. Requires passphrase.
• HarvestOAI
  Harvest OAI repository given URL from the given date. Records already existent in the registry will be updated. Requires passphrase.
• HarvestRecord
  Harvest Single OAI Record from a given URL, also provided the ivo identifier. Requires passphrase.
• HarvestRecords
  Harvest OAI Records (comma-delimited) from a given URL, also provided the ivo identifier. Requires passphrase.