title: What is significance of ewallet.p12.lck and cwallet.sso.lck files in oracle wallets?
body: <p>I am confused regarding the significance of ewallet.p12.lck file and cwallet.sso.lck files. I assumed like any other lock files, whenever a user tries to create DB connection using wallets it creates a lck file so that no other user could use the same wallet files again. 
  Is my assumption correct?
  If yes, is lck file recreated every time a new connection is created using wallets?</p>
  
  <p>I checked oracle wallet documentation they explaing the use of ewallet.p12 and cwallet.sso file, but do not give significance of .lck files created.
  <a href="https://docs.oracle.com/en/database/oracle/oracle-database/12.2/dbimi/using-oracle-wallet-manager.html#GUID-D0AA8373-B0AC-4DD8-9FA9-403E345E5A71" rel="noreferrer">https://docs.oracle.com/en/database/oracle/oracle-database/12.2/dbimi/using-oracle-wallet-manager.html#GUID-D0AA8373-B0AC-4DD8-9FA9-403E345E5A71</a></p>
  
  <p>Oracle DB version 12c</p>