DBA_PROXIES

Columns
   ___________________________
 
   PROXY
      Name of the proxy user
   CLIENT
      Name of the client user who the proxy user can act on behalf of
   CREDENTIAL
      Credential passed by the proxy for the client (if any)
   TYPE
      Type of the credential
   VERSION
      Version of the credential
   AUTHORIZATION_CONSTRAINT
      Indicates the proxy's authority to exercise roles on client's behalf
   ROLE
      Name of the role referenced in authorization constraint

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