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  • Renaming the column name Oracle
  • How does one overcome the Unix 2 Gig file limit? Linux/Unix
  • v$backup.status information Oracle
  • SYSOPER Mystery Oracle
  • How to set Processes Parameter Oracle
  • How to Decide upto what level you can decrement your datafile size. ( Shrink Datafile) Oracle
  • Gather Stats manually using DBMS_STATS after disabling DBMS_SCHEDULER jobs as previous entry Oracle
  • rm_backup_arch_file.ksh Linux/Unix
  • Locally Managed Tablespace and Dictionary managed tablespace (LMT-DMT) Oracle
  • Find nth max and min. Oracle
  • Windows based Command line mailing program like mailx (Sednmail for windows) PHP/MYSQL/Wordpress
  • ext#.sql Oracle
  • tab.sql Oracle
  • Transfer SQL Profiles from One database to other database. Oracle
  • pvm_pre_change.sql Oracle

How to find Unix server conguraiton including Server Model number and underlying disk sub-system ( On Solaris)

Posted on 12-Jun-2006 By Admin No Comments on How to find Unix server conguraiton including Server Model number and underlying disk sub-system ( On Solaris)

$ /usr/platform/sun4u/sbin/prtdiag System Configuration: Sun Microsystems sun4u 8-slot Sun Enterprise E4500/E5500 System clock frequency: 100 MHz Memory size: 10240Mb ========================= CPUs ========================= Run Ecache CPU CPU Brd CPU Module MHz MB Impl. Mask — — ——- —– —— —— —- 0 0 0 400 8.0 US-II 1.0 0 1 1 400 8.0 US-II 1.0 2…

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Linux/Unix, shell

How to Decide upto what level you can decrement your datafile size. ( Shrink Datafile)

Posted on 12-Jun-2006 By Admin No Comments on How to Decide upto what level you can decrement your datafile size. ( Shrink Datafile)

We can directly resize datafiles TEST.SQL>SELECT FILE_NAME, BYTES FROM DBA_DATA_FILES WHERE TABLESPACE_NAME=’SYSTEM’; FILE_NAME BYTES —————- ———- /…/dbsGNX.dbf 419430400 TEST.SQL>ALTER DATABASE DATAFILE ‘/…/dbsGNX.dbf’ RESIZE 390M; Database altered. TEST.SQL>SELECT FILE_NAME, BYTES FROM DBA_DATA_FILES WHERE TABLESPACE_NAME=’SYSTEM’; FILE_NAME BYTES ————— ———- /…/dbsGNX.dbf 408944640 But the minimum file size is the size of the extend the furthest in the datafile:…

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Oracle, SQL scripts

How to find the real execution plan and binds used in that explain plan in Oracle 10g??

Posted on 09-Jun-2006 By Admin No Comments on How to find the real execution plan and binds used in that explain plan in Oracle 10g??

Step-1 : Find the Query and its SQL_ID to trace from AWR reports. Step-2 : Execute following query to find real execution plan: SELECT LPAD(‘ ‘,2*(LEVEL-1))||operation||’ ‘||options ||’ ‘||object_name ||’ ‘|| DECODE(id, 0, ‘Cost = ‘||position) “Query Plan” FROM v$sql_plan START WITH id = 0 and sql_id=’8ska10yfjx4b5′ CONNECT BY PRIOR id = parent_id and sql_id=’8ska10yfjx4b5′;…

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Oracle, SQL scripts

How to find pinned objects from shared pool. (pinned via dbms_shared_pool.keep)

Posted on 08-Jun-2006 By Admin No Comments on How to find pinned objects from shared pool. (pinned via dbms_shared_pool.keep)

SELECT owner, name, type FROM v$db_object_cache WHERE kept = ‘YES’ AND TYPE = ‘CURSOR’;

Oracle, SQL scripts

For Perl DBI installation and testing program

Posted on 08-Jun-2006 By Admin No Comments on For Perl DBI installation and testing program

http://www.cedet.dk/perl/ #!c:perlbinperl use DBI; # Following line is necessary of you are using perl to write html in browser. print “Content-type: text/htmlnn”; print ““; print “CGI Test“; print ““; print “Newer Verion of File Management Operations !“; my $dbname = “pvmeh”; ## DB Name from tnsnames.ora my $user = “pvmeh”; my $passwd = “pvmeh”; print…

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PHP/MYSQL/Wordpress

catting.sh

Posted on 07-Jun-200602-Jun-2023 By Admin No Comments on catting.sh

This is the script used for merging multiple text files in single large text(ASCII) file. for i in `ls *sql *sh` { echo “****************************************************” >> myfile echo File Name : $i >> myfile echo “****************************************************” >> myfile cat $i >> myfile echo ” ” >> myfile }

Linux/Unix, shell

how to find OS block size

Posted on 01-Jun-2006 By Admin No Comments on how to find OS block size

13:01:01 SYS@AWRTEST:-> select lebsz from x$kccle; LEBSZ ——— 512 512 512 3 rows selected. or df -g on unix prompt.

Oracle, SQL scripts

Oracle Identifiers

Posted on 31-May-2006 By Admin No Comments on Oracle Identifiers

Oracle Identifiers: =================== In order not to make using Oracle confusing, there are some identifiers whose meaning must be totally clear if one want to work on Oracle: SID (System Identifier): ======================== A SID (almost) uniquely identifies an instance. Actually, $ORACLE_HOME, $ORACLE_SID and $HOSTNAME identify an instance uniquely. The SID is 64 characters, or less;…

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Oracle, SQL scripts

DETERMINING WHICH INSTANCE OWNS WHICH SHARED MEMORY & SEMAPHORE SEGMENTS

Posted on 24-May-2006 By Admin No Comments on DETERMINING WHICH INSTANCE OWNS WHICH SHARED MEMORY & SEMAPHORE SEGMENTS

To obtain the shared memory id and semaphore id for 8.1.X you can do either of the following: $ORACLE_HOME/bin/sysresv IPC Resources for ORACLE_SID “V817” : Shared Memory: ID KEY 14851 0x8a85a74c Semaphores: ID KEY 11206656 0x4bd4814c Oracle Instance alive for sid “V817” OR %sqlplus internal SQL> oradebug ipc Information written to trace file. Trace file…

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Oracle, SQL scripts

copying/removing directory with all its subdirectory

Posted on 24-May-2006 By Admin No Comments on copying/removing directory with all its subdirectory

copying/removing directory with all its subdirectory use -r flag for recursive copy (cp) or remove (rm). use -f flag for forcefully. I used “rm -fr dir_name” and “cp -r src_dir dest_dir”.

Linux/Unix, shell

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