oracle table size in mb

	https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:266215435203
	SELECT
	owner, table_name, TRUNC(sum(bytes)/1024/1024) Meg
	FROM
	(SELECT segment_name table_name, owner, bytes
	FROM dba_segments
	WHERE segment_type = 'TABLE' and owner = 'AP' )
	group by table_name, owner
	order by 3 desc
	select TABLE_NAME, ROUND((AVG_ROW_LEN * NUM_ROWS / 1024), 2) ROW_SIZE_KB, (BLOCKS * 8)  BLOCK_SIZE_KB
	from all_TABLES where  owner = 'AP'
	order by TABLE_NAME