dbms_stats question

Hi,

We are testing dbma_stats package to gather statistics for our schema??? we have created 1 table 'test' with 1 column abc number

we are doing following steps:

1. insert into test values(1); commit;
2. SQL> EXEC DBMS_STATS.GATHER_Schema_STATS('HS',STATTAB => 'stats_temp1',statid => 'test1');
3. SQL> select table_name,num_rows,blocks,empty_blocks from user_tables where table
   _name='TEST';
   

TABLE_NAME                       NUM_ROWS     BLOCKS EMPTY_BLOCKS
------------------------------ ---------- ---------- ------------
test                                     1          1            0

4)	insert into test values(2);
	commit;
5)	SQL> EXEC DBMS_STATS.GATHER_Schema_STATS('HS',STATTAB => 'stats_temp1',statid =>
	'test2');
6)	SQL> select table_name,num_rows,blocks,empty_blocks from user_tables where table


	_name='TEST';


TABLE_NAME                       NUM_ROWS     BLOCKS EMPTY_BLOCKS
------------------------------ ---------- ---------- ------------
test                                     2          1            0

7) now if i do,
	SQL> EXEC DBMS_STATS.DELETE_Schema_STATS('HS');

8) If i try to import
	SQL> EXEC DBMS_STATS.import_Schema_STATS('HS',STATTAB => 'stats_temp1',STATID =>
	 'TEST1');
	THIS DOES NOT POPULATE THE STATSISTICS IN USER_TABLES
9)	And if i do like this:
	SQL> EXEC DBMS_STATS.import_Schema_STATS('HS',STATTAB => 'stats_temp1',STATID =>
	 'TEST2');

	it shows output num_rows=1 whereas it is expected to have num_rows=2
3)	SQL> select table_name,num_rows,blocks,empty_blocks from user_tables where table


	_name='TEST';


TABLE_NAME                       NUM_ROWS     BLOCKS EMPTY_BLOCKS
------------------------------ ---------- ---------- ------------
test                                     1          1            0


	WHY THE FIRST IMPORT not poplulaing the stats column AND SECOND IMPORT have 1 rows and not 2 ROWS ?????????

Thanks
--Harvinder

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Author: Harvinder Singh
  INET: Harvinder.Singh_at_MetraTech.com

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