I thought that as well Tim, but wasn't sure whether Oracle loads the table
at startup even if this is specified in the storage clause. The following
test seems to show that it doesn't though:
SQL> create table DUMMY_TABLE (id number(3), dummy varchar2(5))
2 storage(BUFFER_POOL KEEP);
Table created.
SQL> select DATA_OBJECT_ID, OBJECT_TYPE
2 from USER_OBJECTS
3 where OBJECT_NAME = 'DUMMY_TABLE';
DATA_OBJECT_ID OBJECT_TYPE
-------------- ------------------
26408 TABLE
SQL> select count(*) buffers
2 from V$BH
3 where OBJD = 26408;
BUFFERS
----------
1
SQL> connect internal/password
Connected.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 73701404 bytes
Fixed Size 75804 bytes
Variable Size 56770560 bytes
Database Buffers 16777216 bytes
Redo Buffers 77824 bytes
Database mounted.
Database opened.
SQL> connect mark/password
SQL> select count(*) buffers
2 from V$BH
3 where OBJD = 26408;
BUFFERS
----------
0
SQL> select * from DUMMY_TABLE;
no rows selected
SQL> select count(*) buffers
2 from V$BH
3 where OBJD = 26408;
BUFFERS
----------
1
Not sure on the trigger though, PL/SQL is not one of my strong points :)
Mark
-----Original Message-----
Sawmiller
Sent: Friday, April 06, 2001 02:07
To: Multiple recipients of list ORACLE-L
Why not just specify BUFFER POOL KEEP in an alter table statement?
>>> [EMAIL PROTECTED] 04/05/01 05:56PM >>>
What is the problem to write something like
Select * from <table_name> for all tables that you need or if there are too
many such tables - create a new table with names of the tables and use
dynamic SQL .
Alex Hillman
-----Original Message-----
From: Kevin Kostyszyn [SMTP:[EMAIL PROTECTED]]
Sent: Thursday, April 05, 2001 5:28 PM
To: Multiple recipients of list ORACLE-L
Subject: tirggers
Hi Intelligent DBA's
I was wondering if anyone knows how to create a trigger that
would fire off
at database startup time and run a script to do full table scans on
several
tables to get them into the buffer cache keep pool? Right now I do
it
manually and would like to automate the task.
Sincerely,
Kevin Kostyszyn
DBA
Dulcian, Inc
www.dulcian.com
[EMAIL PROTECTED]
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