How to disable 10g Gather_stats_Job

exec dbms_scheduler.ENABLE(NAME => 'SYS.GATHER_STATS_JOB');

To check the status of the jobs in dba_scheduler_jobs:

SQL> select JOB_NAME,STATE,ENABLED from dba_scheduler_jobs;




JOB_NAME                                      STATE               ENABL

------------------------------         ---------------         -----

AUTO_SPACE_ADVISOR_JOB       SCHEDULED   TRUE

GATHER_STATS_JOB                          DISABLED   FALSE

FGR$AUTOPURGE_JOB                    DISABLED      FALSE

PURGE_LOG                                     SCHEDULED     TRUE

MGMT_CONFIG_JOB                     SCHEDULED      TRUE

MGMT_STATS_CONFIG_JOB         SCHEDULED     TRUE



6 rows selected.

How to Export and Import Database Statistics

Step by Step Export of Database Statistics


1. Log onto the database



sqlplus '/ as sysdba'

2. Create a table to hold the exported statistics.



SQL> exec DBMS_STATS.CREATE_STAT_TABLE('','','
For example; exec DBMS_STATS.CREATE_STAT_TABLE('MYUSER','MYSTATSTABLE','MYTABLESPACE');



3. Export the database statistics



SQL> exec dbms_stats.EXPORT_DATABASE_STATS('','','');

For example; exec dbms_stats.EXPORT_DATABASE_STATS('MYSTATSTABLE','MYRELEASE2','MYUSER');



Step by Step Import of Database Statistics

1. Log onto the database



sqlplus '/ as sysdba'

2. Import the database statistics



SQL> exec dbms_stats.IMPORT_DATABASE_STATS('','','');

For example; exec dbms_stats.IMPORT_DATABASE_STATS('MYSTATSTABLE','MYRELEASE2','MYUSER');

Example syntax for Secure Copy (scp)

What is Secure Copy?


scp allows files to be copied to, from, or between different hosts. It uses ssh for data transfer and provides the same authentication and same level of security as ssh.



Examples

Copy the file "foobar.txt" from a remote host to the local host

$ scp your_username@remotehost.edu:foobar.txt /some/local/directory



Copy the file "foobar.txt" from the local host to a remote host

$ scp foobar.txt your_username@remotehost.edu:/some/remote/directory



Copy the directory "foo" from the local host to a remote host's directory "bar"

$ scp -r foo your_username@remotehost.edu:/some/remote/directory/bar



Copy the file "foobar.txt" from remote host "rh1.edu" to remote host "rh2.edu"

$ scp your_username@rh1.edu:/some/remote/directory/foobar.txt \

your_username@rh2.edu:/some/remote/directory/



Copying the files "foo.txt" and "bar.txt" from the local host to your home directory on the remote host

$ scp foo.txt bar.txt your_username@remotehost.edu:~



Copy the file "foobar.txt" from the local host to a remote host using port 2264

$ scp -P 2264 foobar.txt your_username@remotehost.edu:/some/remote/directory



Copy multiple files from the remote host to your current directory on the local host

$ scp your_username@remotehost.edu:/some/remote/directory/\{a,b,c\} .



$ scp your_username@remotehost.edu:~/\{foo.txt,bar.txt\} .



scp Performance

By default scp uses the Triple-DES cipher to encrypt the data being sent. Using the Blowfish cipher has been shown to increase speed. This can be done by using option -c blowfish in the command line.



$ scp -c blowfish some_file your_username@remotehost.edu:~



It is often suggested that the -C option for compression should also be used to increase speed. The effect of compression, however, will only significantly increase speed if your connection is very slow. Otherwise it may just be adding extra burden to the CPU. An example of using blowfish and compression:



$ scp -c blowfish -C local_file your_username@remotehost.edu:~