My Experiments with Oracle & Others- By $riram $anka

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Archive for December 10th, 2010

Read the file

Posted by Sriram Sanka on December 10, 2010


A Master piece from http://laurentschneider.com

An excellent piece of code handy for DBA`s


SQL> SELECT s.sid,
2 s.serial#,
3 pa.value || '\' || LOWER(SYS_CONTEXT('userenv','instance_name')) ||
4 '_ora_' || p.spid || '.trc' AS trace_file
5 FROM v$session s,
6 v$process p,
7 v$parameter pa
8 WHERE pa.name = 'user_dump_dest'
9 AND s.paddr = p.addr
10 AND s.audsid = SYS_CONTEXT('USERENV', 'SESSIONID')
11 /

SID SERIAL#
---------- ----------
TRACE_FILE
--------------------------------------------------------------------------------
147 2101
D:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCLE\UDUMP\orcl_ora_1000.trc

SQL>
SQL> sho parameter user_dump_dest

NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
user_dump_dest string D:\ORACLE\PRODUCT\10.2.0\ADMIN
\ORCLE\UDUMP
SQL> CREATE DIRECTORY udump_dest AS
2 'D:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCLE\UDUMP';

Directory created.

SQL> CREATE OR REPLACE FUNCTION get_tracefile (file_name VARCHAR2)
2 RETURN VARCHAR2
3 IS
4 dest_loc CLOB;
5 src_loc BFILE;
6 ret VARCHAR2 (4000);
7 BEGIN
8 src_loc := BFILENAME ('UDUMP_DEST', file_name);
9 DBMS_LOB.OPEN (src_loc, DBMS_LOB.lob_readonly);
10 DBMS_LOB.createtemporary (dest_loc, TRUE);
11 DBMS_LOB.loadfromfile (dest_loc, src_loc, 4000);
12 ret := DBMS_LOB.SUBSTR (dest_loc, 4000);
13 DBMS_LOB.CLOSE (src_loc);
14 RETURN ret;
15 END;
16 /

Function created.

 

SQL>

SQL> SELECT get_tracefile (‘orcl_ora_1000.trc’) FROM DUAL;
GET_TRACEFILE(‘ORCL_ORA_1000.TRC’)——————————————————————————–Dump file d:\oracle\product\10.2.0\admin\orcle\udump\orcl_ora_1000.trcFri Dec 10 22:54:36 2010ORACLE V10.2.0.1.0 – Production vsnsta=0vsnsql=14 vsnxtr=3Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 – ProductionWith the Partitioning, OLAP and Data Mining optionsWindows XP Version V5.1 Service Pack 3CPU                 : 1 – type 586, 1 Physical CoresProcess Affinity    : 0x00000000Memory (Avail/Total): Ph:269M/959M, Ph+PgF:1265M/2314M, VA:1606M/2047MInstance name: orcl
Redo thread mounted by this instance: 1
Oracle process number: 20
Windows thread id: 1000, image: ORACLE.EXE (SHAD)………………….

…………………………………..ETC

Posted in Oracle Server Administration, Uncategorized | Leave a Comment »

Handy Package DBMS_UTILITY

Posted by Sriram Sanka on December 10, 2010


Really Its  great handy package for Oracle People!

We can use this in so many different scenarios.

SQL> DECLARE
2 parnam VARCHAR2(256);
3 intval BINARY_INTEGER;
4 strval VARCHAR2(256);
5 partyp BINARY_INTEGER;
6 BEGIN
7 partyp := dbms_utility.get_parameter_value('max_dump_file_size',
8 intval, strval);
9 dbms_output.put('parameter value is: ');
10 IF partyp = 1 THEN
11 dbms_output.put_line(strval);
12 ELSE
13 dbms_output.put_line(intval);
14 END IF;
15 IF partyp = 1 THEN
16 dbms_output.put('parameter value length is: ');
17 dbms_output.put_line(intval);
18 END IF;
19 dbms_output.put('parameter type is: ');
20 IF partyp = 1 THEN
21 dbms_output.put_line('string');
22 ELSE
23 dbms_output.put_line('integer');
24 END IF;
25 END;
26 /
parameter value is: UNLIMITED
parameter value length is: 9
parameter type is: string

PL/SQL procedure successfully completed.

SQL> declare
2 ver varchar2(100);
3 com varchar2(100);
4 begin
5 dbms_utility.db_version(ver,com);
6 dbms_output.put_line(ver||'-'||com);
7 end;
8 /
10.2.0.1.0-10.2.0.1.0

PL/SQL procedure successfully completed.
SQL> declare
2 id number;
3 str varchar2(40);
4 begin
5 id:=dbms_utility.get_parameter_value('compatible',id,str);
6 dbms_output.put_line(str);
7 end;
8 /
10.2.0.1.0

PL/SQL procedure successfully completed.

SQL> create or replace procedure sriram
2 as
3 begin
4 NULL;
5 end;
6 /

Procedure created.

SQL> select object_id,status,object_name from user_objects
2 where lower(object_name)='sriram';

OBJECT_ID STATUS OBJECT_NAME
---------- ------- ----------------------------------------------
52565 VALID SRIRAM

SQL> exec dbms_utility.invalidate(52565);

PL/SQL procedure successfully completed.

SQL> select object_id,status,object_name from user_objects
2 where lower(object_name)='sriram';

OBJECT_ID STATUS OBJECT_NAME
---------- ------- ----------------------------------------------
52565 INVALID SRIRAM

SQL> exec dbms_utility.validate(52565);

PL/SQL procedure successfully completed.

SQL> select object_id,status,object_name from user_objects
2 where lower(object_name)='sriram';

OBJECT_ID STATUS OBJECT_NAME
---------- ------- ----------------------------------------------
52565 VALID SRIRAM

SQL>

We can use This package in different situations like to compile schema objects analtze database etc…..

Posted in Oracle Server Administration | Leave a Comment »

Get the trace file name and read it

Posted by Sriram Sanka on December 10, 2010


SQL> COL trace_file FOR A75

SQL> col VALUE format a50

SQL> col name format a20

SQL> select name,value

2  from v$parameter

3  where name='user_dump_dest';

NAME                 VALUE

-------------------- --------------------------------------------------
user_dump_dest       D:\ORACLE\PRODUCT\10.2.0\ADMIN\SRIRAM_TEST\UDUMP
SQL> SELECT s.sid,

            s.serial#,

            pa.value || '\' || LOWER(SYS_CONTEXT('userenv','instance_name')) ||

            '_ora_' || p.spid || '.trc' AS trace_file

     FROM   v$session s,

            v$process p,

            v$parameter pa

     WHERE  pa.name = 'user_dump_dest'

     AND    s.paddr = p.addr

     AND    s.audsid = SYS_CONTEXT('USERENV', 'SESSIONID');
SID SERIAL#
---------- ----------
TRACE_FILE
---------------------------------
  143        573 D:\ORACLE\PRODUCT\10.2.0\ADMIN\SRIRAM_TEST\UDUMP\sriramtest_ora_2280.trc
SQL> alter database backup controlfile to trace;

Database altered.

---You can read the file on windows using the below command
SQL> host notepad D:\ORACLE\PRODUCT\10.2.0\ADMIN\SRIRAM_TEST\UDUMP\sriramtest_ora_2280.trc

Posted in Oracle Server Administration | Leave a Comment »

 
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