code: public static boolean createTableIfNotExists(final Connection conn, final String tableName, final String schema) {
          if (doesTableExist(conn, tableName)) {
              return false;
          }
  
          try {
              execute(conn, schema);
  
              return true;
          } catch (SQLException e) {
              return false;
          }
      }
docs: Returns {@code true} if succeed to create table, otherwise {@code false} is returned.
  
  @param conn
  @param tableName
  @param schema
  @return