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Category: Oracle

On solaris 10, “S” link is not part of $ORACLE_HOME/bin/oracle as default. ( For 9.2.0.8)

Posted on 01-Oct-2007 By Admin No Comments on On solaris 10, “S” link is not part of $ORACLE_HOME/bin/oracle as default. ( For 9.2.0.8)

Re : Can’t create a new connection for jdbc ORA-01034: ORACLE not available ORA-27121 There is a problem with permissions do this: cd $ORACLE_HOME/bin chmod a+s oracle

Oracle, SQL scripts

Specify the Rollback segment to use in Transaction

Posted on 28-Sep-2007 By Admin No Comments on Specify the Rollback segment to use in Transaction

First statement before you start processing?? SET TRANSACTION USE ROLLBACK SEGMENT BIG_RBS1; OR dbms_transaction.use_rollback_segment(‘BIG_RBS1’);

Oracle, SQL scripts

reset Sequence

Posted on 25-Sep-2007 By Admin No Comments on reset Sequence

column last_number format 9999999999999999 select * from user_sequences where sequence_name in (‘UOC_ORDER_SEQ_ID’); select 2400000000 – CurrVAl – 20 LAST_NUMBER from dual; alter sequence UOC_ORDER_SEQ_ID increment by NOCACHE; Increment Once. select UOC_ORDER_SEQ_ID.nextval from dual; Confirm Value comes to 2300000000. After that alter sequence UOC_ORDER_SEQ_ID increment by 1 NOCACHE; alter sequence UOC_ORDER_SEQ_ID maxvalue 2499999999 NOCACHE;

Oracle, SQL scripts

_B_TREE_BITMAP_PLANS issue during 8.1.7 to 9.2.0.8 upgrade

Posted on 30-Aug-2007 By Admin No Comments on _B_TREE_BITMAP_PLANS issue during 8.1.7 to 9.2.0.8 upgrade

Subject: Upgrading from 8.1.X to 9.X – Btree Bitmap Plan Issues – Diagnosing and Resolving Doc ID: Note:259126.1 Type: TROUBLESHOOTING Last Revision Date: 13-MAR-2006 Status: PUBLISHED PURPOSE The Oracle Cost Based Optimizer is continually been enhanced. These enhancements were designed to improve performance but in some cases can cause a minority of queries to perform…

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Oracle, SQL scripts

Multiple listeners

Posted on 23-Aug-2007 By Admin No Comments on Multiple listeners

TNS-00512 starting second listener in same node Hi all, I have a 8.1.7.4 listener running OK with a 9.2.0.1 listener in the same Solaris box, I get TNS-00512 starting second listener from 9.2.0.1 ORACLE_HOME. I have changed the ports number, but the problem still persist !!! Here are the listener.ora file: Listener.ora (8.1.7.4) LISTENER =…

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Oracle, SQL scripts

Good RAC & Standby Notes

Posted on 13-Jul-2007 By Admin No Comments on Good RAC & Standby Notes

RAC Notes Note:241114.1 Step-By-Step Installation of RAC on Linux – Single Node (Oracle9i 9.2.0 with OCFS) Linux OCFS – Best Practices Step-by-Step Installation of RAC on Linux @ Setting up Real Application Cluster (RAC) environment on Linux – Single node Setting up Oracle Parallel Server environment on Linux – Single node @ 9iRAC: OS Port-Specific…

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Oracle, SQL scripts

Finding locked objects

Posted on 11-Jun-2007 By Admin No Comments on Finding locked objects

select object_id from dba_objects where object_name = ‘MYTABLE’; select sid, id1, id2 from v$lock where id1= &objid or id2 = &objid;

Oracle, SQL scripts

Changing Instance Name ( No DB_NAME)

Posted on 11-Jun-2007 By Admin No Comments on Changing Instance Name ( No DB_NAME)

Note Instance name : represented by $ORACLE_SID database name : represented by DB_NAME init.ora parameter. You can change instance name to any name with following requirements: Here we are chaning instance name from AWRTEST1 to PARESH. Exising setup: ORACLE_SID=AWRTEST1 Step1: $ export ORACLE_SID=PARESH; Step2: Create password file for new instance PARESH. $ cd $ORACLE_HOME/dbs $…

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Oracle, SQL scripts

Find nth max and min.

Posted on 02-May-2007 By Admin No Comments on Find nth max and min.

First, the query for Max: SELECT * FROM TAB1 a WHERE &N = (SELECT count(DISTINCT(b.col1)) FROM TAB1 b WHERE a.col1=b.col1) If N=1 will return first max or first min. N=2 will return second max or min.

Oracle, SQL scripts

DBMS_Shared_pool pinning triggers

Posted on 02-May-2007 By Admin No Comments on DBMS_Shared_pool pinning triggers

How to pin a stored procedure/functions ? 1.You can pin procedures and triggers with the dbms_shared_pool procedure. Either procedures or packages can be pinned with the ‘P’ flag, which is the default value (so you can leave it out). Triggers are pinned with ‘R’ and anonymous plsql blocks need any letter other than [p,P,r,R] as…

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Oracle, SQL scripts

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