In PL\SQL program, I am writing information from one table to file. In my current architecture, I am writing the information to approximately 1000 files.
If I put the database write operation in another package and in another method and call this method from my PL\SQL program asychronously, can that increase performance?
We are currently using OCI to connect to Oracle DB using c language. Each process has its own dedicated Connection and Env handle, session handle ...
Right now we decided to use Connection Pooling. In the documentation , Connection pooling examples were using multi-threaded environment. But in our case its multi-process system and we cant modify products architecture to multi-thread.
I would like to know how we can use Connection Pooling on multiple processes.
its possible to have multiple LGWR processes for a single database.If its possible how does the multiple processes write from redo log buffer to online redo log file.
View 3 Replies View RelatedI am receive the REP-50127 error, cannot write to file when trying to save a report to a file on the network via report parameters.
I am guessing the rwserver does not have permissions to the network drive.
Will the SERVER_IN_PROCESS=NO run the rwserver process as the user executing the report?
I was trying to write nested decode statement with multiple searches. For example
Case when seq = 1 and date1 > date2 then Record_Name End
How can i modify this to decode.
I have read the following article:[URL] 11070I want to know wherer if there exists a possibility of write a clob or an xml into a file on disk, if we do not have the CREATE ANY DIRECTORY privilege. Many functions, like UTL_FILE.FOPEN, or dbms_xslprocessor.clob2file, or dbms_xmldom.writetofile, need an Oracle directory to be created (with CREATE OR REPLACE DIRECTORY...). But if we don't have this privilege, is there a possibility to export a clob into a file as xml (the clob contains 100% xml, but this is the column data type, CLOB) if we don't have that privilege?The clob data contains 48200 characters.
View 8 Replies View RelatedWe have a database that is accessed by ArcSDE, a product to modify maps. It uses BLOBs to store those maps.
We ran a load on the server and the response time was slow. By running the following query:
select event, total_waits, time_waited, avg_ms, round(ratio_to_report(time_waited) over () * 100) percent
from (select substr(event, 1, 30) event, total_waits, time_waited, round(time_waited_micro / total_waits / 1000, 2) avg_ms
from v$system_event
where wait_class in ('System I/O') union
select 'CPU' event, NULL, value, NULL
from v$sysstat
where statistic# = 12
order by 3 desc)
where rownum <= 10;
I get
EVENT TOTAL_WAITS TIME_WAITED AVG_MS PERCENT
--------------------------- -------------- ------------- -------- ---------
control file parallel write 127187 6354909 499.65 70
CPU 988274 11
db file parallel write 20461 886442 433.23 10
log file parallel write 14987 870672 580.95 10
log archive I/O 1557 18094 116.21 0
control file single write 149 10590 710.71 0
control file sequential read 136502 5219 .38 0
log file single write 56 2511 448.41 0
log file sequential read 489 492 10.05 0
BUG: 733426 says to change the event="10359 trace name context forever, level 1"
suppose i have a file named chk.txt and I have write 10 line in that file and i just want to write some text at line 5 or line first then how we can do this ?
View 3 Replies View RelatedHow to write the CTL file for this kind of situation.
a.txt
id name subject
12aaaHistory
23bbbScience
45cccZoology
b.txt
idlayerLayerNo
12xxx121
23yyy232
23lll233
45xxx451
45yyy452
45lll453
i have files a.text which is parent file and another one is child one called file b.txt . Both files are linked together by common field called "id". Interesting part child file have multiple layers name associated with ids. (we are only aware that in b.txt for each id there could be max 3 layers)
So they needs to get loaded into Table called PARENT_TBL
So PARENT_TABLE looks like
ID NAME SUBJECT LAYER LAYERNO
How I'm going to achieve this ?
How to write to text file using oracle? And how do I handle spaces/next line? (i was trying to use spaces(ch(32)), however it is just converted into squares in the text file.)
View 5 Replies View RelatedI have a file studnet.txt in following order
JAMs|1231|PHYSICS
SAM|1232|PHYSICS
ALI|1233|CHEMISTRY
I want to read and write data from a file in | seprated mode. file READ and WRITE using Oracle Forms6i. I have a knowledge of file handling in C++ but not use it in Oracel Form before this.
I have a web service which gives me the response in Byte array.write this byte array into a binary file? .
View 2 Replies View RelatedI would like to connect to oracle database and would like to execute series of SQLs and write those SQL results into Excel file (sheet1).
my requirement is simple :
------------------------
db_user_id scott
db_user_pwd tiger
db_sid orcl
select count(*) from emp;
select count(*) from dept;
print the same SQLs in A column and result should be in B column in excel file.
column A column B
select count(*) from emp; 14
select count(*) from dept; 4
thats it.
I'm working on trying to write a shell script to parse a parameter file, but at the same time I want to be able to overwrite the parameter file settings with other command line settings. For instance if my par file had export/import settings for the username, password, schema, etc;
I wanted to run the same export/import with those settings for a different schema. I want to be able to put the schema=<different_than_par_file> after the parfile=<parfile.par and have the parfile be read and applied for everything except the different schema.
Right now I'm storing the cmd line and parsing it again looking for other parameters besides the parfile.
So we need an mechanism to read data from LONG RAW and convert into actual file.
View 1 Replies View RelatedSQL> desc res;
Name Null? Type
----------------------------------------- -------- ----------------------------
RESULT PUBLIC.XMLTYPE
SQL> select * from res;
RESULT
--------------------------------------------------------------------------------
<fine No="2"><stdNo>2</stdNo><value>300</value><reason>breaks keyboard</reason><
date>2011-10-03</date></fine>
how can me write results of select statement into xml file instead of show them on screen?
I tried to write a dynamically changing filename and file type so that i can dump some data. But the code I wrote is not producing any file at all even though it compiles with no errors. I run this code at XE database which comes free from the oracle website. I did all the directory settings. No problem with it because I can produce file with different codes. The code is as following:
CREATE OR REPLACE PROCEDURE dump_csv_file IS
TYPE number_array IS VARRAY(10000) OF NUMBER;
TYPE string_array IS VARRAY(10000) OF VARCHAR2(100);
TYPE date_array IS VARRAY(10000) OF DATE;
TYPE v_file_array IS VARRAY(10000) OF UTL_FILE.FILE_TYPE;
[code]...
I have a table revenue
create table revenue
(
person varchar2(23),
month varchar2(3),
rev_amt number
)
and i have data in a file like below
Person Jan Feb Mar Apr Mai Jun Jul Aug Sep Oct Nov Dez
--------------------------------------------------------
Schnyder,345,223,122,345,324,244,123,123,345,121,345,197
Weber,234,234,123,457,456,287,234,123,678,656,341,567
Keller,596,276,347,134,743,545,216,456,124,753,346,456
Meyer,987,345,645,567,834,567,789,234,678,973,456,125
Holzer,509,154,876,347,146,788,174,986,568,246,324,987
Müller,456,125,678,235,878,237,567,237,788,237,324,778
Binggeli,487,347,458,347,235,864,689,235,764,964,624,347
Stoller,596,237,976,876,346,567,126,879,125,568,124,753
Marty,094,234,235,763,054,567,237,457,325,753,577,346
Studer,784,567,235,753,124,575,864,235,753,864,634,678
i want to load it into the table in the following way.
Person Month Revenue
-------------------------
Schnyder Jan 345
Schnyder Feb 223
Schnyder Mar 122
Schnyder Apr 345
Schnyder Mai 324
Schnyder Jun 244
Schnyder Jul 123
Schnyder Aug 123
Schnyder Sep 345
Schnyder Oct 121
Schnyder Nov 345
Schnyder Dez 197
........ ... ...
How to write control file to load this data into the above revenue table.
how to write procedure to load the data into a table using xml as input parameter to a procedure and xml file is as shown below which is input to me.
xml version="1.0"?><DiseaseCodes><Entity><dcode>0</dcode><ddesc>(I87)Other disorders of veins - postphlebitic syndrome</ddesc><claimid>34543></claimid><reauthflag>0</reauthflag></Entity><Entity><dcode>0</dcode><ddesc>(J04)Acute laryngitis and tracheitis</ddesc><claimid>34543></claimid><reauthflag>0</reauthflag></Entity><Entity><dcode>0</dcode><ddesc>(J17*)Pneumonia in other diseases - whooping cough</ddesc><claimid>34543></claimid><reauthflag>0</reauthflag></Entity></DiseaseCodes>.
I've been given the task of importing an XML file into multiple tables within our database using PL / SQL and I am wondering what the best approach would be.
The files will be quite large and I need the code to be as flexible as possible.
Is it possible to execute multiple sql files in one .bat file?for single sql file it is working properly.
.bat file
-------------------------------
sqlplus /nolog @ c: est01.sql
using oracle 10g currently create many external tables like so..
CREATE TABLE "XT_UNITS"
(
"Q1_2012" VARCHAR2(25 BYTE),
"Q2_2012" VARCHAR2(25 BYTE),
"Q3_2012" VARCHAR2(25 BYTE),
"Q4_2012" VARCHAR2(25 BYTE)
[code]....
is there any way I can use 1 flat file (csv) to populate many external tables ?
In the program i wrote, posted in this thread I parallelize 340 jobs.
To do this, according to oracle documentation, i set the job_queue_processes parameters to 450. This works fine, all jobs are submitted, but, when i chek the dba_scheduler_job_run_details, i notice that there is a difference between REQ_START_DATE, which is my requested start date, when i enabled my job, and the ACTUAL_START_DATE, which is the date on which Oracle start this process.
And the more i submit job, the more difference between ACTUAL_START_DATE and REQ_START_DATE increase. But for each job, run duration is less than 1second. I check the processes parameter, and it is set to 100. if i have to increase the processes parameter to 450 too ?
Oracle database 11g Expression Edition 11.2.0.2
I want to change the the number of processes to 150 (default is 100) I did this by issuing the below command.
alter system set processes=150 scope=spfile;But why that modified value is not being reflected?
select name, value from v$parameter where name in ('sessions','processes','transactions');
NAME VALUE
-------------------- -----
processes 100
sessions 172
transactions 189
i'm working on a project right now using Oracle Forms 6.0 and Oracle 9i. after i create a record and save the data in the table, how can i generate/create a text file of that particular record? i need this text file in order to run it in another computer and somehow upload the data in the text file to another database.
i will also need to create the text file for multiple records.
I am having a data guard setup done in oracle 10g(10.2.0.4.0) WINDOWS Platform. some of the archive process are locked in primary db side.
PROCESS STATUS LOG_SEQUENCE STAT
-------- ---------- ------------ ----
0 ACTIVE 0 IDLE
1 ACTIVE 804462 IDLE
2 ACTIVE 0 IDLE
3 ACTIVE 0 IDLE
4 ACTIVE 0 IDLE
5 ACTIVE 800011 BUSY
6 ACTIVE 0 IDLE
7 ACTIVE 800009 BUSY
8 ACTIVE 0 IDLE
9 ACTIVE 802335 BUSY
10 ACTIVE 0 IDLE
Shall we kill the locking archive processes? killing archive processes will cause any problem?
Is there any way to tell what processes/sessions were connected to a DB after I get an ORA 20error. As you can see from the query results below, I did hit the max value of processes but I would like to know when it happen and who was connected.
I realize I can up the value, but before I do that I want to see what caused this to happen.
SQL> select * from v$resource_limit where resource_name in ('sessions', 'processes');
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_AL
LIMIT_VALU
----------
processes 221 1000 1000
1000
sessions 223 1020 1105
1105
select * from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE 11.2.0.2.0 Production
TNS for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - ProductionI got below error on the datases.
ORA-00020: maximum number of processesBased on the suggestion got from previous posts, I did kill some (LOCAL=NO) processes to get myself in. When I looked at the number of processes the number is 150, I changed it to 1000. After a day I got the same error.
ORA-00020: maximum number of processes (1000) exceededI killed processes again to let my self in, bases on the post below, I queried database
ORA-00020: maximum number of processes (%s) exceededHere is the query to find out if there are any processes with out session attached to it.
select spid from v$process where addr not in (select paddr from v$session);Result
SPID
null
35259840
36897866
13369762
[Code]...
To determine the from where greatest number of processes originated
SELECT MACHINE, COUNT(*) FROM V$SESSION GROUP BY MACHINE;Machine Count(*)
2
CAPITAL-D3F0092 1
DQAKDCDKLCSW01 14
desmond 20
DQAKDCDKLCSA01 52
My question is why I am keep getting this? Why do increasing process from 150 to 1000 did not resolve the issue?
What can I do to make sure that I don't get this error again?
i got this error..
ORA-00020: maximum number of processes (1100) exceeded
my oracle version is 10.2.0.2.0
when i was trying to login to oracle i got :ERROR at line 1: ORA-01012: not logged on
lucky i was having another sqlplus login ..
wht i should do to bring the number of process down without increasing the process value and shuting/restaring down db.
"Usually, when this happens, I want to get connected to the instance, so that I can try to figure out which user is causing the problem. One way to do that is to use the 'ps' command to identify some of the oldest server processes, and kill the 3-5 oldest processes, and then quickly try connecting to the database. Once you're in, you can look at things like V$SESSION to try and determine which user(s) is (are) consuming so many connections, and then go from there."
this is what i got from [URL]....
1.if i am giving ps -ef in OS it will give lot of detail ...
2. in v$session wht i should look for ....
I don't know if there is a beginner forum out there for PL SQL, but I cannot find one.I just started taking an Intermediate Oracle course to learn PL SQL. Today is my first day and I just installed Oracle 11g. I was in SQL Plus, tried the edit command. I got the message "wrote file Afiedt.buf" and then it was just a flashing cursor in the line below. I could not type any commands. I just hit the X to close the program.
What could I have done to exit the program with that flashing cursor since I was unable to type anything?