PL/SQL :: Stored Procedure Taking Long Time When Updates In Loop
Feb 5, 2013
This is my stored procedure
I have below store procedure:
create or replace
PROCEDURE TESTPERFORMANCE (
o_statuscode OUT NUMBER,
o_statusdescription OUT VARCHAR2,
starttime out timestamp,
time_after_query_TESTJOB out timestamp,
[Code]...
This procedure is taking around 35 minutes when there are 35000 records to loop over (i.e cursor has 35000 records) and TESTJOBTRANSACTIONS table has 90000 records. How to reduce execution time.
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Sep 20, 2010
We are firing a normal Drop command on our database and the database version is 10.2.0.4.The database is running on AIX v5.The command is taking more time than usual .
When i am monitoring the session i can see that a call is being made to procedure "aw_drop_proc".Could i ask you if this is something that is taking more time than usual.
We are not having any partitions on the nested tables .We have a pack of tables and we are dropping this pack through a procedure.The pack comprises of nested tables & normal tables.To drop a nested table it is taking around 6 seconds(Table with no rows) and a normal table(With no rows) it is taking 17 milli seconds.We have a partition on Normal table.
The same operation in windows is taking very less time when compared to AIX.
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Sep 14, 2010
I have upgraded oracle database from 9i to 11g using export and import utility. After migration we are facing performance issue in report generation, We have observed that First execution of report is taking very long time and when we generate the same report 2 -3 times there is considerable change in the execution time and it is more better than the first execution.
2 days back I have restarted the database and found the same issue. There are around 300 Reports and it is not possible to generate all the reports 2-3 times every time we restart the database.
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Aug 23, 2012
Expdp directory=xxx.dmp dumpfile=aaa.dmp logfile=xxx.log FULL=Y
: :: : : :: : : : ;
Estimate in progress using BLOCKS method...
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 24.87 MB
Processing object type SCHEMA_EXPORT/USER
[code]...
then my export hangs..... checked in alert log nothing found.and then killed the job and reran again but same....checked the status and it's saying EXECUTING.
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Mar 20, 2007
I am modifying a stored proc that i wrote a couple of years ago. The change is that i want certain inputs to accept strings of characters (comma delimited) so they can be parsed and processed in the proc. The problem is, when i pass very little data (about 50 characters) It fails saying the character sting buffer is to small.
I have setup the input as a type of a column that is a clob and i have also tried using just vahrchar2 (with no size set).
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Feb 9, 2011
I have connected to the database from two sessions
Box 1 : i have executed a procedure.it took few seconds to get executed
Box 2 : I have executed a block of procedure.It is taking 1 min 40 secs to get executed.
why it is taking much time from Box2(for executing a block from procedure) , as the same code executed successfully in a procedure from Box 1.
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Feb 17, 2012
I have a table of 3 columns:
SQL> show user
USER is "ANDREY"
SQL>
SQL>
SQL>
SQL> --create the table:
[code]...
I insert rows into it:
SQL> --fill it with data:
SQL>
SQL> insert into a(key1 , key2) values (1 , 1);
1 row created.
SQL> insert into a(key1 , key2) values (1 , 5);
[code]...
i want to perform a logic by which:for every distinct value of key1 - values of key2 will be checked in all records holding that particular key1 value, and update the key3 field to 'inactive' where the key2 value for that particular key1 is the highest in number.
i've found out that i could do it by an SQL statement:
update a
set key3 = 'inactive'
where key2 = (
select max(key2)
from a a2 where a2.key1=a.key1
);
however I wanted to use the cursor to "load" the max key2 values FOR EACH distinct key1 value exists in the table,and do the same thing as the update statement above WITH A CURSOR,So tried and wrote the following:
SQL> create or replace procedure proc1
2 IS
3
4
5 var1 a.key1%type;
[code]...
unfortunately, it works only for one row, and i don't understand what's wrong, I executed, and checked what has changed:
SQL> exec proc1;
PL/SQL procedure successfully completed.
SQL> select * from a;
KEY1 KEY2 KEY3
---------- ---------- ----------
1 1 active
1 5 incative
2 24 active
2 21 active
ORA-01034: ORACLE not available
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May 15, 2011
I'm creating a stored procedure wherein I'm the field wherein I will use for date input parameter is having a datetime format.
The format that we need for user's to input is 'DD-MON-YYYY' (without the minutes and seconds.)
how should I proceed with the creation of stored procedure for this?
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Sep 27, 2011
How can we tune our RMAN Duplicate as it was taking 10+ hours to finish. Current production database size is 800GB. Approx duration of rman online backup (FULL, including archived logs) is 4 to 5 hours.
Here's the rman backup script we used:
sql 'alter system archive log current';
list archivelog all;
run
{
show all;
report schema;
backup database plus archivelog delete all input;
}
exit
Here's the rman duplicate command we used:
run
{
set until time "to_date(to_char(sysdate,'Mon DD YYYY') || ' 02:30:00', 'Mon DD YYYY HH24:MI:SS')";
allocate auxiliary channel ch1 type disk;
duplicate target database to testdb;
}
exit
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Aug 8, 2013
We have data archive scripts, these scripts move data for a date range to a different table. so the script has two parts first copy data from original table to archive table; and second delete copied rows from the original table. The first part is executing very fast but the deletion is taking too long i.e. around 2-3 hours. The customer analysed the delete query and are saying the script is not using index and is going into full table scan. but the predicate itself is the primary key,More info below
CREATE TABLE "APP"."MON_TXNS" ( "ID_TXN" NUMBER(12,0) NOT NULL ENABLE, "BOL_IS_CANCELLED" VARCHAR2(1 BYTE) DEFAULT 'N' NOT NULL ENABLE, "ID_PAYER" NUMBER(12,0), "ID_PAYER_PI" NUMBER(12,0), "ID_PAYEE" NUMBER(12,0), "ID_PAYEE_PI" NUMBER(12,0), "ID_CURRENCY" CHAR(3 BYTE) NOT NULL ENABLE, "STR_TEXT" VARCHAR2(60 CHAR), "DAT_MERCHANT_TIMESTAMP" DATE, "STR_MERCHANT_ORDER_ID" VARCHAR2(30 BYTE), "DAT_EXPIRATION" DATE, "DAT_CREATION" DATE, "STR_USER_CREATION" VARCHAR2(30 CHAR), "DAT_LAST_UPDATE"
[Code]...
Data is first moved to table in schema3.OTW. and then we are deleting all the rows in otw from original table. below is the explain plan for delete
SQL> explain plan for 2 delete from schema1.mon_txns where id_txn in (select id_txn from schema3.OTW);
Explained. SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT--------------------------------------------------------------------------------------------------------------------------------------------
Plan hash value: 2798378986
-------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-------------------------------------------------------------------------------------| 0 | DELETE STATEMENT | | 2520 | 233K| 87 (2)| 00:00:02 || 1 | DELETE | MON_TXNS | | | | ||* 2 | HASH JOIN RIGHT SEMI | | 2520 | 233K| 87 (2)| 00:00:02 || 3 | INDEX FAST FULL SCAN| OTW_ID_TXN | 2520 | 15120 | 3 (0)| 00:00:01 || 4 | TABLE ACCESS FULL | MON_TXNS | 14260 | 1239K| 83 (0)| 00:00:02 |
-------------------------------------------------------------------------------------
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
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May 22, 2012
I am trying to invoke program from my local Windows machine (exactly java executor, which is in my environment on c:javajdkinjava) using database package with Java stored procedure.
Everything is fired by SQLPLUS script, this script invokes package with Java stored procedure (jar loaded into Oracle) and that procedure is trying to invoke runtime process (syntax:
c:javajdkinjava -cp
and here ara my classes and main jar) using my local java executor. I added all permissions using dbms_java.grant_permisions (execution forced me to give permissions java.io.FilePermission to <<ALL_FILES>> for execute), moreover I added to my database user JAVASYSPRIV and JAVAUSERPRIV role. Unfortunately, beside this I am still getting error:
C:javajdkinjava not found (Note that lookup with PATH isn't done due to the oracle executable being setuid.)
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Mar 3, 2012
We are on a GRID DB and using Oracle 11g.
A external reporting application ( SQL SERVER REPORT SERVICES) sends in some comma separated parameter values, which has to be queried against a table with 6-10 million records.
Length of the comma separated value can go upto 5000-6000 in length based on user input in the front end application. This application sends this value in comma separated. i.e., like
'AA1-11101,AA2-34346,AA4-534399,.....' like this at a time the application can send upto 500 values each of length 10. i.e, maximum length can be upto 5000. I used CLOB to handle this because since the length can be 5000 and varchar2 can handle only 4000 long literals.
But the time taken by the CLOB to verify against the table using INSTR is more compared to VARCHAR2.
I found that VARCHAR2 does'nt take much time. Is it a good idea to have VARCHAR2 in the PLSQL procedure as parameter instead of CLOB, since PLSQL VARCHAR2 can handle upto 32000 long values.
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Mar 2, 2013
How to find time log for query or any procedure like start time and end time and total time.
So that I can tune that queries properly.
Also how can we find estimated query running time.?
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Jul 4, 2011
I want to know how I can find which query is taking more time , for example some query's are run from unix, java and from toad,sqlplus. and one query is taking much more time to execute, so how i can get that query and all the details.
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Feb 19, 2013
I have a query which is executing fast in dev env,but very long time in qa env.What is the criteria when this behaviour occurs.Though qa is having more data than dev.But still it is taking long time for 1 rows also.When I am using the query rownum<=1.So What to check for this.
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Nov 23, 2010
I have one query in my production which is taking more CPU time. when that statement executing the CUP is taking more than 90%
I am attaching the sql query and indexes on the table.
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Mar 21, 2011
I have one big form where the first canvas (content) is taking nearly 20 seconds to display. this is in web mode using forms 10g.
i have tried using SHOW_VIEW(find_view('SAMPLE')) but still no improvement.
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Dec 24, 2012
Execute sp1 param1...param6
Execute sp2 param1...param8
Execute sp3 param1...param4
All these stored procedures deals with insert/updated transactions . i need to create a new stored procedure to execute all this in a single stored procedure which will be something like
create procedure sp4(param1...param8)
as
begin
Execute sp1 param1...param6
rollback if any error
Execute sp2 param1...param8
rollback if any error
Execute sp3 param1...param4
rollback if any error
end;
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Aug 23, 2010
We were trying to insert approx 76 million records worth of approx 4 GB in a table when the insert operation failed with the archive log error.
The database was hanged, we re-started the database and currently there are no records in the table but when we are firing a select
select count(*)
from table
It's taking approx 2 mins to come out with the result.
We checked and found that there are no locks on the table currently.
what do we need to do to get the performance back
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Jan 24, 2013
My oracle database version is 11.2.0.3.0 where i am having one schema in that schema i am having 3 same tables with same structure same data but with different name.
but problem is in first table when i perform select query it takes 5 sec, in another table it is taking 0 sec and in third table it is taking 10 sec.
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Mar 31, 2010
Some of my forms taking to much time while loading on some machines but same forms working fine on other machines with same configuration.
Forms, version: 10.1.2.0.2, Clients: Win_XP_Pro, App Server: Window 2003 Server, IE7, Jinit 1.3.1.26
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Sep 19, 2013
My Database version as followsOracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64biPL/SQL Release 10.2.0.4.0 - ProductionCORE 10.2.0.4.0 ProductionTNS for Linux: Version 10.2.0.4.0 - ProductionNLSRTL Version 10.2.0.4.0 - Production We have datagaurd setup as well - Huge archive logs are generating in our primary database - Archive logs are shipping to standby with no dealy - But applying the archive logs are taking more in our physical standby database -why it was taking more time to apply archivlogs (sync) in standby ? - What could be possible reasons..? Note : Size of standby redo logs are same as redo log file of primary database - Also standby by redo one or more than online redo log primary. Since i need to report my higer leve stating this is cause for delay in applying archive logs.
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Sep 13, 2012
I've a query like
update tab1
set col1 = ( select col2 from
tab2
where tab1.id = tab2.id) table 1 has arnd 10,000 rows
table 2 has arnd 1,700,000 rows and has a primary key on column id.This query is taking around 20 secs to execute. I checked the x-plan and most of time taken for table access by index rowid.I checked the stats for the tab2, its just three days old.
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Jan 20, 2011
We are inserting data using JDBC (Java program) in Oracle 11gR2 DB and Timesten to oracle (using AWT cache group) . In reality insertion in oracle is faster than Timesten Cache DB.
Timesten version - TimesTen Release 11.2.1.7.0 (64 bit Linux/x86_64)
1. It is Client/Server Model.
2. Cpu has 4 core and we are using 3 core for insert the Data.
3. Perm and Temp size is big enough compare to Data Size
4. auto commit=0
5. durable commit=0
6. PassThrough=1
7. LogBufParallelism=3
8. LogPurge=1
9. LockWait = 0.1
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Mar 9, 2010
In my code I am using delete statement which is taking too much time to execute.
Statement is as follow:
DELETE FROM TRADE_ORDER_EMP_ALLOCATION T
WHERE (ARTEMIS_SOURCE_SYSTEM_ID,NM_ARTEMIS_SOURCE_SYSTEM,CD_BOOK_KEY,ACTIVITY_DT)
IN (SELECT ARTEMIS_SOURCE_SYSTEM_ID,NM_ARTEMIS_SOURCE_SYSTEM,CD_BOOK_KEY,ACTIVITY_DT
FROM LOAD_TRADE_ORDER
WHERE IND_IS_BAD_RECORD='N');
Tables Used:
oTRADE_ORDER_EMP_ALLOCATION Row count (329525880)
oLOAD_TRADE_ORDER Row count (29281)
Every column in "IN" clause and select clause is containing index on it
Every time no of rows which to be deleted is vary (May be in hundred ,thousand or hundred thousand )so that I am Unable to use "BITMAP" index on the table "LOAD_TRADE_ORDER" column "IND_IS_BAD_RECORD" though it is containing distinct record in it.
Even table "TRADE_ORDER_EMP_ALLOCATION" is containing "RANGE" PARTITION over it on the column "ARTEMIS_SOURCE_SYSTEM_ID". With this I am enclosing table scripts with Indexes and Partitions over it.
way for fast execution in of above delete statement?
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Sep 1, 2010
For an query, cost was 16Lakhs and was taking 30min, I brought down the cost to 1.5lakhs, but still it is taking 30min.
There were many outer joins and same table has been Used(FROM clause) 5 times in the query. I have introduced WITH clause, and brought down the cost.
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Feb 4, 2013
I am working on oracle 11g...I have one normal insert proc
CREATE OR REPLACE PROCEDURE test2
AS
BEGIN
INSERT INTO first_table
(citiversion, financialcollectionid,
dataitemid, dataitemvalue,
[code]....
I am processing 1 lakh rows.tell me the reason why bulk collect is taking more time. ? According to my knowledge it should take less time. do i need to check any parameter?
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Nov 8, 2012
How can I convert a DATE to EPOCH time taking care of daylight savings?
I tried with this code but there is a difference of 36000 seconds. eg:Sysdate_To_Epoch('04-Sep-2012') gives 1346716800 whereas it should give 1346680800.
CREATE OR REPLACE FUNCTION Sysdate_To_Epoch(v_date IN DATE)
RETURN NUMBER
IS
[Code]....
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Mar 15, 2011
I want to use a function in join clause. so i go for pipelined function(using for loop to get record & 1 more loop to fetch in table type variable). i achieved what i required. but problem is it takes much time to fetch data. is there any other approach which returns table records without pipelined function.
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Sep 25, 2013
select
serialnumber from product where productid in
(select /*+ full parallel(producttask 16) */productid from producttask where
startedtimestamp > to_date('2013-07-04 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
and startedtimestamp < to_date('2013-07-05 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
and producttasktypeid in
[code]....
Explain plan output:
Plan hash value: 2779236890
-----------------------------------------------------------------------------------------------------------------------------------------
| Id | Operation | Name| Rows| Bytes | Cost (%CPU)| Time| Pstart| Pstop |
-----------------------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT || 1 | 29 | 9633M (8)|999:59:59 |||
|* 1 | FILTER |||| ||||
| 2 | PARTITION RANGE ALL || 738M| 19G| 6321K (1)| 21:04:17 | 1 | 6821 |
[code]....
Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter( EXISTS (<not feasible>)
4 - filter("PRODUCTID"=:B1)
5 - filter(ROWNUM<100)
12 - access("MODELID"=:B1)
[code]....
Note: - SQL profile "SYS_SQLPROF_014153616b850002" used for this statement
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