SQL+ AUTOTRACE OUTPUT

From: <Sofiane-Ennaifar_at_cartes-bancaires.com>
Date: Wed, 04 Apr 2001 03:05:17 -0700
Message-ID: <F001.002E0E0C.20010404022519@fatcity.com>

Hello,

I have a table with 39 rows (3 blocks of 4Ko).

When I delete 4 rows from this table, the output of the SQL+ AUTOTRACE is the following :

Statistics

          8  recursive calls
          7  db block gets
          8  consistent gets
          0  physical reads
       1067  redo size
         40  bytes sent via SQL*Net to client
         98  bytes received via SQL*Net from client
          2  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
          4  rows processed

I am enable to find an explanation of the following value : db block gets 7 (table is composed of 3 blocks) consistent gets 8 (table is composed of 3 blocks) recursive calls 8 ???

Any one could give me a possible explanation ? (exact definition of 'db block get' & 'consistent get')

When I delete all the table data, the SQL+ AUTOTRACE is the following :

Statistics

          0  recursive calls
         39  db block gets
         37  consistent gets
          0  physical reads
       7507  redo size
         40  bytes sent via SQL*Net to client
         73  bytes received via SQL*Net from client
          2  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
         35  rows processed

NB : the table is not indexed

Thanks in advance

--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author:
INET: Sofiane-Ennaifar_at_cartes-bancaires.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------

To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Wed Apr 04 2001 - 05:05:17 CDT