replacing ^M character when passing files from Windows to Unix
To replace the ^M ‘s on the screen in vi type :1, $ s/r/
To see how much time or progress of long transaction
select * from v$session_longops where sid=100;
cp_filesystem.sql
exec dbms_output.enable(10000); set lines 130 pages 1000 set serveroutput on size 1000000 declare cursor c1 is select substr(name,1,61) complete_filename, bytes/(1024) KB, substr(name, instr(name, ‘/’, -1)+1) only_filename from v$datafile order by file#; threshold_kb number(10) := 94000000 ; size_counter number := 0; mountpoint_counter number := 1; mountpoint_prefix varchar2(10) := ‘/800t’; common_mountpoint_prefix varchar2(15) := ‘/oradata/800T/’; target_filename varchar2(61); begin…
Caching sequence in Memory
ALTER SEQUENCE CS.SESSION_ACTIVE_SEQ_ID CACHE 2000; exec sys.DBMS_SHARED_POOL.KEEP(‘CS.SESSION_ACTIVE_SEQ_ID ‘, ‘Q’) =>> To pin the sequence using the DMBS_SHARED_POOL.KEEP procedure (IF NEEDED) Potential drawbacks Setting a cache size larger then 0 can result in the loss of sequence values if the system is shutdown abruptly. When the system fails, the values that were preserved in memory are…
Remove DOS CR/LFs (^M)
Remove DOS style CR/LF characters (^M) from UNIX files using: sed -e ‘s/^M$//’ filename > tempfile The newly created tempfile should have the ^M character removed
RMAN : Consistent Backup, Restore and Recovery using RMAN
Subject: RMAN : Consistent Backup, Restore and Recovery using RMAN Doc ID: 162855.1 Oracle9i Lab 1 Consistent Backup, Restore and Recovery using RMAN In Oracle9i, Recovery Manager still works the same as in 8 and 8i with enhancements for ease of use and manageability. Using the updateable persistent configuration options, backing up the database is…
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Backup and Recovery Scenarios
Backup and Recovery Scenarios Doc ID: 94114.1 In this Document Purpose Last Review Date Instructions for the Reader Troubleshooting Details BACKUP SCENARIOS a) Consistent backups b) Inconsistent backups c) Database Archive mode d) Backup Methods e) Incremental backups f) Support scenarios RECOVERY SCENARIOS 1. Online Block Recovery. 2. Thread Recovery. 3. Media Recovery. Media Failure…
Benefits and Usage of RMAN with Standby Databases
Subject: Benefits and Usage of RMAN with Standby Databases Doc ID: 602299.1 Applies to: Oracle Server – Enterprise Edition – Version: 9.0.1.4 to 11.1.0.6 Information in this document applies to any platform. Goal Benefits and Usage of RMAN with Standby Databases . Solution RMAN can back up the standby database and its associated archived redo…
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backspace in SQL Plus not working then..?
If you set “stty erase ^H” on unix prompt and it works fine on unix prompt. But not working on SQLPLUS then you need to put “stty erase ^H” in .kshrc file as following. -> pwd /home/oracle oem.localdomain:OEMDB:/home/oracle -> more .kshrc stty erase ^H oem.localdomain:OEMDB:/home/oracle ->
Changing default shell
Following statement will be used to change default shell to /bin/ksh for oracle user. [root@oem ~]# chsh -s /bin/ksh oracle Changing shell for oracle. Shell changed. [root@oem ~]#