pvmehta.com

set markup html preformat on Rem Rem Use the display table function from the dbms_xplan package to display the last Rem explain plan. Use default mode which will display only relevant information Rem select * from table(dbms_xplan.display());

create table PLAN_TABLE ( statement_id varchar2(30), plan_id number, timestamp date, remarks varchar2(4000), operation varchar2(30), options varchar2(255), object_node varchar2(128), object_owner varchar2(30), object_name varchar2(30), object_alias varchar2(65), object_instance numeric, object_type varchar2(30), optimizer varchar2(255), search_columns number, id numeric, parent_id numeric, depth numeric, position numeric, cost numeric, cardinality numeric, bytes numeric, other_tag varchar2(255), partition_start varchar2(255), partition_stop varchar2(255), partition_id numeric, other…

Read More “create PLAN_TABLE command.” »

Oracle Internals http://www.ixora.com.au/notes/ http://www.stormloader.com/yonghuang/computer/x$table.html http://www.adp-gmbh.ch/ora/misc/x.html http://www.oracle-training.cc/oracle_tips.htm

**exporting only structure** exp userid=username/password@conn_str file=expdat.dmp tables= table1, table2, table3, table4, table5, table6, table7, table8 rows=n statistics=none **exp command help** exp help=y

Explaination about X$tables http://www.stormloader.com/yonghuang/computer/x$table.html

set linesize 132 select owner, substr(object_name,1,30) objname , object_type from dba_objects where owner not in (‘SYS’, ‘SYSTEM’) and status = ‘INVALID’ order by owner, object_type, object_name;

**************************************************** File Name : a.sql **************************************************** create or replace view ats_dba_waiters as select /*+ all_rows */ w.session_id waiting_session, h.session_id holding_session, w.lock_type, h.mode_held, w.mode_requested, w.lock_id1, w.lock_id2 from ats_dba_lock w, ats_dba_lock h where h.blocking_others = ‘Blocking’ and h.mode_held != ‘None’ and h.mode_held != ‘Null’ and w.mode_requested != ‘None’ and w.lock_type = h.lock_type and w.lock_id1 = h.lock_id1 and…

Read More “myfile” »

PURPOSE ========= To document one of the features of spooling in SQL*Plus. This article explains the behavior of “@” when used in the spooled file name. I checked for Unix and its working fine. This is an undocumented behavior of 10g sqlplus. How is “@” interpretted when used in spooled file name? ======================================================== When you…

Read More “ORACLE_SID in sqlplus” »

set pages 1000 spool compile_inv select ‘alter ‘ || object_type || ‘ ‘ || object_name || ‘ compile; ‘ from user_objects where status = ‘INVALID’; spool off