code: @Override
  	public int delete(DataColumnConstraints dataColumnConstraints)
  			throws SQLException {
  
  		DeleteBuilder<DataColumnConstraints, Void> db = deleteBuilder();
  
  		setUniqueWhere(db.where(), dataColumnConstraints.getConstraintName(),
  				dataColumnConstraints.getConstraintType(),
  				dataColumnConstraints.getValue());
  
  		int deleted = db.delete();
  
  		return deleted;
  	}
docs: {@inheritDoc}
  
  Delete using the unique columns