title: Trying to drop the table getting error in Oracle
body: <p>I am just trying to drop the table but getting error. I have just created hbm files of it and checkin the code now that server has been started pointing to the same db. Looks to session got locked. I am getting below error.</p>
  
  <pre><code>Error starting at line 1 in command:
  alter table DM_PKG_TEMPLATE drop column INSP_STAGE_ID
  Error report:
  SQL Error: ORA-00054: resource busy and acquire with NOWAIT specified
  00054. 00000 -  "resource busy and acquire with NOWAIT specified"
  *Cause:    Resource interested is busy.
  *Action:   Retry if necessary.
  </code></pre>