code: public int deleteByTableName(String tableName) throws SQLException {
  
  		DeleteBuilder<Extensions, Void> db = deleteBuilder();
  
  		db.where().eq(Extensions.COLUMN_TABLE_NAME, tableName);
  
  		int deleted = db.delete();
  
  		return deleted;
  	}
docs: Delete by table name
  
  @param tableName
  table name
  @return rows deleted
  @throws SQLException
  upon failure
  @since 1.1.8