code: public boolean createTableIfNotExists(final String tableName, final String schema) {
          Connection conn = getConnection();
  
          try {
              return JdbcUtil.createTableIfNotExists(conn, tableName, schema);
          } finally {
              closeQuietly(conn);
          }
      }
docs: Returns {@code true} if succeed to create table, otherwise {@code false} is returned.
  
  @param tableName
  @param schema
  @return