code: @Override
  	public synchronized void delete(long historyId, String tag) throws DatabaseException {
      	SqlPreparedStatementWrapper psDeleteTag = null;
          try {
          	psDeleteTag = DbSQL.getSingleton().getPreparedStatement("tag.ps.delete");
  			psDeleteTag.getPs().setLong(1, historyId);
  			psDeleteTag.getPs().setString(2, tag);
  			psDeleteTag.getPs().executeUpdate();
  		} catch (SQLException e) {
  			throw new DatabaseException(e);
  		} finally {
  			DbSQL.getSingleton().releasePreparedStatement(psDeleteTag);
  		}
      }
docs: /* (non-Javadoc)
  @see org.parosproxy.paros.db.paros.TableTag#delete(long, java.lang.String)