Tuning Oracle query

Hi,
when I run this query:
SELECT a.*, d.C1
FROM t1 a, t2 b, t3 c, t4 d
WHERE C2 IS NOT NULL
   AND C1 > '0005'
   AND a.C3 = b.C4
   AND NOT EXISTS (
          SELECT *
            FROM t5
           WHERE C5 = C2
             AND C6 = DECODE (b.C7,'AB', 0,
                              'BC', '555',
                              a.C3
   AND a.C2 = c.C5
   AND a.C8 = d.C8;It is taking lot of time (more 1 hour), I need some suggestions how to tune it.
I have noticed that If I remove the "NOT EXISTS" clause the query becomes very fast.
I'd like to know How Can I write more efficient query, and speed up existing code.
Thanks in advance!

Below ddl and explan plan of the query:
   CREATE TABLE t4
ID_C            NUMBER                      NOT NULL,
C1         VARCHAR2(14 BYTE)
| Id | Operation                    | Name              | Rows | Bytes |TempSpc| Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT             |                   |   103K|    12M|       |   451K (1)| 01:30:17 |
|* 1 | FILTER                      |                   |       |       |       |            |          |
|* 2 |   HASH JOIN                  |                   |   103K|    12M|       | 57064   (1)| 00:11:25 |
|   3 |    TABLE ACCESS FULL         | t2                |    66 |   528 |       |     3   (0)| 00:00:01 |
|   4 |    NESTED LOOPS              |                   |   103K|    11M|       | 57059   (1)| 00:11:25 |
|* 5 |     HASH JOIN                |                   |   106K|    11M| 3440K| 57051   (1)| 00:11:25 |
|* 6 |      TABLE ACCESS FULL       | t4                |   106K| 2188K|       | 2012   (2)| 00:00:25 |
|* 7 |      TABLE ACCESS FULL       | t1                | 6343K|   568M|       | 22970   (2)| 00:04:36 |
|* 8 |     INDEX UNIQUE SCAN        | SYS_C0020000      |     1 |     6 |       |     1   (0)| 00:00:01 |
|* 9 |   TABLE ACCESS BY INDEX ROWID| t5                |     1 |     9 |       |     4   (0)| 00:00:01 |
|* 10 |    INDEX RANGE SCAN          | IDX_C             |     1 |       |       |     2   (0)| 00:00:01 |
----------------------------------------------------------------------------------------------------------

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Query on using Variables in Oracle Query

Hi
i am new to Oracle, i have tried extracting data from the Oracle Database using the following Query which includes 1 variable SYSDATE_UTS, however when i try to execute the Query i get an error. Please let me know what am i doing wrong and how can i correct it.
Error Message
ORA-06550: line 4, column 1:
PLS-00428: an INTO clause is expected in this SELECT statement
Oracle Query
DECLARE SYSDATE_UTS NUMBER := (sysdate-to_date('19700101','yyyymmdd'))*86400;
BEGIN
SELECT
INCIDENT_NUMBER,
to_date(to_char((1/86400*REPORTED_DATE)+to_date('19700101','yyyymmdd'),'mm/dd/yyyy hh24:mi:ss'),'mm/dd/yyyy hh24:mi:ss') as REPORTED_DATE_TIME,
,GROUP_TRANSFERS
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,(to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) as AGE
,CASE
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 0 AND 1 THEN '0-1 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS, 'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 2 AND 4 THEN '2-4 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 5 AND 9 THEN '5-9 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 10 AND 19 THEN '10-19 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) >20 THEN '20+ Days'
ELSE 'UNKNOWN'
END AS AGE_GROUP
FROM IncidentDataBase
and STATUS not in (4,5,6)
and rownum <10;
END;

Hi Frank
i am using the following Oracle Version
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
PL/SQL Release 10.2.0.5.0 - Production
CORE 10.2.0.5.0 Production
TNS for Linux: Version 10.2.0.5.0 - Production
NLSRTL Version 10.2.0.5.0 - Production
and Quest Toad for Oracle to write and execute the queries:
Toad for Oracle Xpert
Version 10.1.1.8
The code i am using is:
variable SYSDATE_UTS NUMBER;
exec SYSDATE_UTS := (sysdate-to_date('19700101','yyyymmdd'))*86400;
SELECT
INCIDENT_NUMBER,
to_date(to_char((1/86400*REPORTED_DATE)+to_date('19700101','yyyymmdd'),'mm/dd/yyyy hh24:mi:ss'),'mm/dd/yyyy hh24:mi:ss') as REPORTED_DATE_TIME
,GROUP_TRANSFERS
,LAST_MODIFIED_BY
,to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * LAST_MODIFIED_DATE,'mm/dd/yyyy hh24:mi:ss'),'mm/dd/yyyy hh24:mi:ss') as LAST_MODIFIED_DATE
,(to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) as AGE
,CASE
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 0 AND 1 THEN '0-1 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS, 'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 2 AND 4 THEN '2-4 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 5 AND 9 THEN '5-9 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) BETWEEN 10 AND 19 THEN '10-19 Days'
WHEN (to_date(to_char(to_date('01011970','ddmmyyyy')+1/24/60/60 * :SYSDATE_UTS,'mm/dd/yyyy'),'mm/dd/yyyy')) - (to_date(to_char(+to_date('19700101','yyyymmdd')+1/86400*REPORTED_DATE,'mm/dd/yyyy'),'mm/dd/yyyy')) >20 THEN '20+ Days'
ELSE 'UNKNOWN'
END AS AGE_GROUP
FROM IncidentDataBase
WHERE STATUS not in (4,5,6)
and rownum <10;
Notes:
1. When i put the cursor before "variable" (starting of the query) and execute the script i get an Error: ORA-00900: invalid SQL statement.
2. When i put the cursor just before "SELECT" i get a pop up.
a. it is a Toad window which displays the available variables (in this case :SYSDATE_UTS).
b. gives me a dropdown option to select the type (by default VARCHAR2 is selected).
c. there is a value field where i need to enter the value for the Variable.
d. the SQL statement shown in this dilog box does not include the 1st 2 lines
variable SYSDATE_UTS NUMBER;
exec SYSDATE_UTS := (sysdate-to_date('19700101','yyyymmdd'))*86400;
Q: is there something wrong in the syntax i am using?
Sven W. - I have been using your method all these days, which works just fine. i wanted to know how i could use a variable instead.
Business Requirement - My whole intent is to calculate the Age of an incident (Difference between "Reported Date" and current date) and to assign Age Groups (0-1 Days, 2-4 Days,....,20+ Days).
Edited by: 921713 on Mar 19, 2012 12:23 PM

Oracle query help

Oracle9i Enterprise Edition Release 9.2.0.8.0 - 64bit Production
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Oracle Toolkit 2 for Windows 32-bit platforms 10.1.2.0.2
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I have enclosed sample data and also table structure. I need help in getting the query.
select dept_id,proc_code,override_goal,goal_override_date
from table2
where goal_override_date between '02-jan-2014' and '11-jan-2014'
   and dept_id = 10
   and proc_code = 'CP'
select DEPT_ID, PROC_CODE, DAY_SUNDAY, DAY_MONDAY,
       DAY_TUESDAY, DAY_WEDNESDAY, DAY_THURSDAY,
         DAY_FRIDAY, DAY_SATURDAY
from table1
where dept_id =10
and proc_code = 'CP';
Table1 is kind of maintenance table.
In Table2 values can be overridden.
Requirement
Check to see if there is data in table 2 for the date range . If table2 has no value then take value from table1 for that day the date falls into. Any more clarification please ask me.
Sundays are all zeros.
I want this data. and the sum for the date range.
2-jan-2014 - 3
3-jan-2014 - 3
4-jan-2014 - 3
5-jan-2014 - 0
6-jan-2014 - 1
7-jan-2014 - 3
8-jan-2014 - 5
9-jan-2014 - 5
10-jan-2014 - 3
11-jan-2014 - 3
Sum for the date range has to be 29
Sample table and data
CREATE TABLE TABLE1
DEPT_ID NUMBER NOT NULL,
PROC_CODE VARCHAR2(2 BYTE) NOT NULL,
DAY_SUNDAY NUMBER(4) NOT NULL,
DAY_MONDAY NUMBER(4) NOT NULL,
DAY_TUESDAY NUMBER(4) NOT NULL,
DAY_WEDNESDAY NUMBER(4) NOT NULL,
DAY_THURSDAY NUMBER(4) NOT NULL,
DAY_FRIDAY NUMBER(4) NOT NULL,
DAY_SATURDAY NUMBER(4) NOT NULL
Insert into TABLE1
(DEPT_ID, PROC_CODE, DAY_SUNDAY, DAY_MONDAY, DAY_TUESDAY,
DAY_WEDNESDAY, DAY_THURSDAY, DAY_FRIDAY, DAY_SATURDAY)
Values
(10, 'CP', 0, 3, 3,
3, 3, 3, 3);
COMMIT;
CREATE TABLE TABLE2
DEPT_ID NUMBER NOT NULL,
PROC_CODE VARCHAR2(2 BYTE) NOT NULL,
OVERRIDE_GOAL NUMBER(4),
GOAL_OVERRIDE_DATE DATE NOT NULL
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 1, TO_DATE('01/06/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 3, TO_DATE('01/07/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 5, TO_DATE('01/08/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 5, TO_DATE('01/09/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 3, TO_DATE('01/10/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into TABLE2
(DEPT_ID, PROC_CODE, OVERRIDE_GOAL, GOAL_OVERRIDE_DATE)
Values
(10, 'CP', 3, TO_DATE('01/11/2014 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
COMMIT;
Help is highly appreciated.

SELECT dates,
       override_goal,
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       FROM(SELECT dates,
                   CASE WHEN EXISTS(SELECT 1
                                    FROM table2 t2
                                    WHERE t2.goal_override_date = qry1.dates
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                             FROM dual)
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Hello,
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****prodcomn/rgf/PROD_****/
****prodcomn/rgf/PROD_****/oam/
DB Tier files folder locations.
****oracle/proddb/10.2.0/oc4j/j2ee/OC4J_DBConsole_*****_PROD/log/em-application.log
****oracle/proddb/10.2.0/oc4j/j2ee/OC4J_DBConsole_*****_PROD/log/http-web-access.log
****oracle/proddb/10.2.0/oc4j/j2ee/OC4J_DBConsole_****_PROD.upgrade/log/http-web-access.log
****oracle/proddb/10.2.0/appsutil/log/PROD_****/StageDBTier_10161830.log
****oracle/proddb/10.2.0/*****_PROD/sysman/log/emoms.log
****oracle/proddb/10.2.0/*****_PROD.upgrade/sysman/emd/sqlnet.log
****oracle/proddb/10.2.0/******_PROD.upgrade/sysman/log/
****oracle/prodappl/admin/PROD/log/For Performance Tuning, right now i have following points with me.
1). Compile APPS Schema in maintenace which i will take.
2). I have checked some Gather Stats/Purge jobs are already scheduled for maintenance.
Please tell me what other Jobs i can schedule using OAM for weekend for All tiers in APPS.
I have been also asked to apply latest patches on PROD APPS/DB/* system, I can check using sql, which patches are applied, but how can i know which patches are required, (don't know about the licensed products with never ask policy here).
Thanks,
RAJ
Edited by: 870344 on Jul 5, 2011 6:36 AM

can you please suggest some key points for starting with and some good links for future usage.Please check below MOS doc:-
A Holistic Approach to Performance Tuning Oracle Applications Systems [ID 69565.1]
Configuring various JVM tuning parameters for Oracle E-Business suite 11i and R12 [ID 567551.1]
Tuning is something that require more analysis less action, first you need to answer:-
1) Why do you need tuning? is it proactive or some incident happend?
2) Where are you facing issues? i.e. which module, form, report or whole application.
3) Number of users facing issues? i.e. is it single user, user at one location or all users.
4) Has something changed in past that might have triggered this need?
Theri are various components involved in tuning that start from :-
1) user machine
2) network
3) Application tier.
4) Database tier.
Application tier can be further divided into:-
1) Apache server(JVM, modplsql, jserv etc etc
2) Form Server
3) Concurrent processing server
4) Discovered if using,
5) XML publisher..
and like wise other component using.
If you are looking to tune then i believe start from application tier first, pick one by one componets, like if your users are facing issues with login then use note that i have provided, if users are not satisifed with time taken to complete concurrent request then you might have to tune it and likewise.
can i just remove all these logfiles using os (rm) command and is it feasible with production environment on running mode or is it not feasible and i should use some other ways/etc.Do not rm files because it might be in use by some process and ti might then not be able to release space, its better to trim the file. do cat file >
Log file you have mentioned can be removed depedning upon your company policy if any.
Thanks,
JD

Some diffrence in oracle query and mysql query

sir i see both query in SessionBean1
mysql query
SELECT ALL usert.username,
usert.userid,
usert.camid FROM usert
this not use user name
oracle query
SELECT ALL MFA.LUSER.USERID,
MFA.LUSER.TITLE,
MFA.LUSER.CAMPID,
MFA.LUSER.PWD,
MFA.LUSER.USERNAME
FROM MFA.LUSER
the user name mfa is use in this query you can see
this is main diffrence
but i yse both in code but not get result
try {
RowKey userRowKey = luserDataProvider.findFirst
(new String[] { "MFA.LUSER.USERNAME" },
new Object[] { textField4.getText()});
if (userRowKey == null) {
textField3.setText("11111");
return null;
} else {
textField3.setText("22222");
return null;
catch (Exception e) {
log("Cannot perform login for userid " + textField3.getText(), e);
error("Cannot perform login for userid " + textField3.getText() + ": " + e);
textField3.setText("77777");
return null;
problem in only oracle not in mysql
please give me idea how i get result
thank you

can you post your query with explain plan for both 9i version and 10g version.
Thanks,
karthick.

Is there try and catch in oracle query ?

hi
is there try and catch in oracle query ?
try
do some update
catch
if there was error go to here
}

>
is there try and catch in oracle query ?
>
Yes - except it uses BEGIN --- EXCEPTION --- END where BEGIN replaces the try and EXCEPTION replaces the catch.
BEGIN
-- Calculation might cause division-by-zero error.
   pe_ratio := stock_price / net_earnings;
   dbms_output.put_line('Price/earnings ratio = ' || pe_ratio);
EXCEPTION -- exception handlers begin
-- Only one of the WHEN blocks is executed.
   WHEN ZERO_DIVIDE THEN -- handles 'division by zero' error
      dbms_output.put_line('Company must have had zero earnings.');
      pe_ratio := null;
   WHEN OTHERS THEN -- handles all other errors
      dbms_output.put_line('Some other kind of error occurred.');
      pe_ratio := null;
END; -- exception handlers and block end here
/The multiple WHEN conditions correspond to using multiple 'catch' statements in Java.

Tuning Oracle query

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