How to access Oracle table stats, specifically NUM_ROWS and AVG_ROW_LEN, using JDBC?

Question

Is there a way to access Oracle table level statistics in a Java application using JDBC? I'm specifically interested in values NUM_ROWS and AVG_ROW_LEN for the purpose of estimating optimal memory buffer size and fetch size for my queries.

Answer 1

If you're not concerned with database independence

SELECT num_rows, avg_row_len
  FROM all_tables
 WHERE owner = '<<owner of the table>>'
   AND table_name = '<<name of the table>>'