Java vs. SQL*Plus spooling

Hi
We are considering using java to extract data from Oracle and write it to a file since spooling is soooo slow. Has anyone tried doing this? If so, what has performance been like? Is there anything that I should try when creating this java app?
BTW: We do not use UTL_FILE here since it will only write to the database server.
Thank you for your time.
Todd

Hi Todd,
Not an answer to your question (sorry), but is Oracle's "exp" utility also not suitable?
I saw no mention in your post as to what Oracle DBMS version you are using, so I am assuming the latest version.
The documentation is here (assuming you haven't read it):
http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96652/part1.htm
Although I have no idea what you are trying to do, or why you think spooling is slow (since I couldn't find terribly many details in your post), my gut feeling is that using java would certainly be slower than spooling.
As far as I know, the "exp" utility is the prederred way to extract data from the Oracle database and write it to a file.
Hope this has helped you.
Good Luck,
Avi.

Similar Messages

SQL*Plus spooled filesize restriction

Hi,
Are there any restrictions on the size of spooled file frol SQL*Plus session apart from obvious underlying O/S filesize restrictions?
E.g. Let's say that my O/S supports 4GB filesize are there any restrictions on sqlplus that would prohibit to spool file up to 4GB?

Are there any restrictions on the size of spooled file frol SQL*Plus session apart from obvious underlying O/S filesize restrictions?AFAIK, no.
Oracle documentation doesn't say anything about that in Database Limits

Connecting java to sql plus editor

I want to open oracle sql plus editor by giving user name and password from a java program and send queries from java program to the sql plus editor to execute.

I have the same sort of requirements, but I don't think that SQLPlus can be used that way. The requirements stem from having scripts written by Oracle developers that SQLPlus can parse, but are hard to parse into JDBC-executable statements with Java.
In my case I have several Oracle database developers who produce SQL scripts to e.g. create and change PL/SQL, change tables, add and remove data, etc. Generally all kinds of DDL and DML. They write one master script to execute the rest of the scripts for a particular change, using SQLPlus' @[filepath] notation.
I am somehow supposed to be responsible for releasing this stuff, which would normally mean executing each master script through SQLPlus.
I am trying to figure out a way to do this automatically.
SQLPlus would be good for this as it is written to parse the scripts that Oracle developers are used to writing.
The problem is that running SQLPlus from the command line only lets you run one (master) script, and doesn't let you set up named variables. So you can't run scripts generically; you have to know which variables turn up in which scripts, which makes it impossible to run in more than one environment/schema.
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I may also have to look at doing token replacement to set variables.

How to remove trailing spaces in SQL PLUS spool

Hi,
I've requirement to pull data from tables and I'm using sqlplus spool to automate data fetch from various tables:
I'm using the following script for the same :
set echo off
set feedback off
set pagesize 0
set linesize 2000
set heading on
set trimspool on
Spool table1.TXT;
prompt col1|col2|col3|col4|col5
select
LTRIM(RTRIM(col1))||'|'||
LTRIM(RTRIM(col2)) ||'|'||
LTRIM(RTRIM(col3)) ||'|'||
LTRIM(RTRIM(col4)) ||'|'||
LTRIM(RTRIM(col5)) ||'|'||
from TABLE1 ;
spool off
After using trimspool on option also I'm having trailing spaces issue how to fix it?
Thanks,
Mahender.
Edited by: user518071 on Oct 11, 2010 1:05 PM

Hi,
do you need LTRIM/RTRIM? This is namely your problem. By using a function around your column Oracle reserves the maximum lenght for the column. So what do you get without those functions? Furthermore you are concatenating all the columns. This is also a function. For getting '|' in between columns you can also set a seperator by using
set colsep '|'Herald ten Dam
http://htendam.wordpress.com

Query is Slower in PL/SQL than in SQL*Plus ?

I have a query that executes quiet fast in SQL*Plus (<1 second) but with EXECUTE IMMEDIATE withing an PL/SQL block its performance is really poor (=20 times slower)
I am using the agregation function WMSYS.WM_CONCAT and I figured out that the poor PL/SQL performance must be related somehow to this function...
I don't get why in SQL*Plus the query executes that much faster... Any ideas/solutions?
Thanks!
My PL/SQL query:
EXECUTE IMMEDIATE 'INSERT INTO ' || temp_table_opt || '
SELECT DISTINCT a.hs as HS, a.ht as HT, a.vehicle_id as VEHICLE_ID, c.option_id as OPTION_ID, WMSYS.WM_CONCAT(e.av_checked) as AV,
d.vehicle_id || '';'' || d.option_code || '';'' || d.option_type || '';'' || d.manuf_name as COMPOUND_KEY
FROM jumla.ax_vid a, jumla.version b, jumla.equipment c, jumla.option_list d, jaxlink_data.checked e
WHERE a.hs = SUBSTR(''' || phsht || ''', 1, 2)
AND a.ht = SUBSTR(''' || phsht || ''', -2, 2)
AND b.vehicle_id = a.vehicle_id
AND c.vehicle_id = a.vehicle_id
AND d.vehicle_id = a.vehicle_id
AND b.id_106 IN (''2'', ''4'', ''X'')
AND d.option_type <> ''P''
AND d.option_id = c.option_id
AND e.hs = a.hs
AND e.ht = a.ht
AND e.schema_id = c.schema_id
AND e.option_code = d.option_code
AND e.description = d.manuf_name
GROUP BY a.hs, a.ht, a.vehicle_id, c.option_id, d.vehicle_id || '';'' || d.option_code || '';'' || d.option_type || '';'' || d.manuf_name';

> I am using the agregation function WMSYS.WM_CONCAT and I figured
out that the poor PL/SQL performance must be related somehow to this
function...
Wrong.
Who executes the SQL that is created?
Answer - does not matter where the SQL comes from, from a PL procedure, Java program, SQL*Plus, TOAD or whatever, the SQL is parsed by the SQL engine, execution plan created by the CBO and stored in the SQL Shared Pool.
An EXECUTE IMMEDIATE is a PL command that sends the string to the SQL engine to be processed. Just as SQL*Plus sends a string to the SQL engine to be processed.
So how can the very same SQL be faster from SQL*Plus and slower from somewhere else?
Nothing to do with where it comes from, but everything to do wrt the session that the SQL is being executed in. Issues such as settings for that session (which can be differ from session to session). Scope. Context. Etc.

Running a SQL*Plus command from Java

I have a requirement to run SQL* Plus commands from Java. The results as they would appear in SQL*Plus window or spool file should be captured and stored in a table.
For example,
SQL> select * from dual;
D
X
1 row selected;
SQL>
All the lines above should be stored for later use.
Could any one give pointers?
Thanks,
Ravi


Hi,



public class RuntimeExecApp {
public static void main(String args[]) throws IOException
Runtime r = Runtime.getRuntime();
r.exec("C:\\Oracle\\sqlplus.exe");
}


Kuba

Message was edited by:
KUBA

SQL*Plus - how to suppress the SQL in a spool file

This is my SQL*Plus script. I thought I had solved the problem, but it is back now and I don't know what I am missing. But I don't want the query at the top of the file.
SET SERVEROUTPUT ON
SET MARKUP HTML ON -SILENT
SET ECHO OFF
SET PAGESIZE 33
SET TERMOUT OFF
Spool C:\DuaneWilson.xls
SELECT *
FROM RPT_DS1_CNT_CAT_vw
WHERE ROWNUM <=100
ORDER BY CVBI_KEY;
SET MARKUP HTML OFF
SET ECHO ON
SET PAGESIZE 20
SET TERMOUT ON
SET SERVEROUTPUT OFF

It turns out when I run the script with the @ or Start with the file name, there is no SQL put out to the file. But when I just copy the text out of the file and run it at the prompt, the SQL appears in the output file. In reference to the -SILENT, I put that in after the MARKUP statement and got an error. Maybe I don't know where that goes. And I am not sure why there is a difference if it is run as a script or just pasted to the buffer. At least it should be the same in the output file, I would think.

Unable to compile the java class in the SQL PLUS

Hi Team,
I am unable to compile the java class in the SQL PLUS in dev1 and dev2. It is giving the following error.
But the same class get Compiled in the Toad(Tool) without any error and working fine. Could someone help me
What to do for this for your reference ,Attaching the java class file.
“ORA-29536: badly formed source: Encountered "<EOF>" at line 1, column 28.
Was expecting one of:
----------------------Here is the Java class Code.....................
create or replace and compile java source named "XXVM_ZipFileUtil_Ela"
as
import java.math.BigDecimal;
import java.util.zip.Deflater;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import oracle.sql.*;
import oracle.jdbc.*;
import java.sql.*;
import java.io.*;
public class XXVM_ZipFileUtil_Ela
public static oracle.sql.BLOB getZipFile(
oracle.sql.CHAR zipFilePathCHAR, oracle.sql.CHAR zipFileNameCHAR,
int fileBufferSize, int zipFileBufferSize,
boolean deleteZipFile, java.sql.Array fileNames, java.sql.Array fileContents, java.sql.Array fileContentsLength)
throws IllegalArgumentException, FileNotFoundException, IOException, java.sql.SQLException
String zipFilePath = (zipFilePathCHAR == null) ? null : zipFilePathCHAR.stringValue();
String zipFileName = (zipFileNameCHAR == null) ? null : zipFileNameCHAR.stringValue();
String zipPathAndFileName = new String(
new String(zipFilePath == null || zipFilePath == "" ? "/tmp/" : zipFilePath) +
new String(zipFileName == null || zipFileName == "" ? System.currentTimeMillis() + ".zip" : zipFileName));
byte[] buffer = new byte[fileBufferSize == 0 ? 100000000 : fileBufferSize];
try
Connection conn = DriverManager.getConnection("jdbc:default:connection:");
oracle.sql.CLOB[] fileContentsCLOB = (oracle.sql.CLOB[])fileContents.getArray();
String[] fileNamesString = (String[])fileNames.getArray();
BigDecimal[] fileContentsLengthNumber = (BigDecimal[])fileContentsLength.getArray();
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipPathAndFileName));
zipOut.setLevel(Deflater.DEFAULT_COMPRESSION);
for (int i = 0; i < fileNamesString.length; i++) {
System.out.println(i);
zipOut.putNextEntry(new ZipEntry(fileNamesString));
InputStream asciiStream = fileContentsCLOB[i].getAsciiStream(1L);
int asciiReadCount = asciiStream.read(buffer,0,fileContentsLengthNumber[i].intValue());
zipOut.write(buffer, 0, fileContentsLengthNumber[i].intValue());
zipOut.closeEntry();
zipOut.close();
byte zipFileContents[] = new byte[zipFileBufferSize == 0 ? 100000000 : zipFileBufferSize];
FileInputStream zipIn = new FileInputStream(zipPathAndFileName);
int byteCount = zipIn.read(zipFileContents);
zipIn.close();
byte returnFileContents[] = new byte[byteCount];
System.arraycopy(zipFileContents,0,returnFileContents,0,byteCount);
String returnFileContentsString = new String(returnFileContents);
if (deleteZipFile)
boolean deletedFile = (new File(zipPathAndFileName)).delete();
oracle.sql.BLOB returnFileContentsBLOB = null;
returnFileContentsBLOB = BLOB.createTemporary(conn, true, BLOB.DURATION_SESSION);
returnFileContentsBLOB.open(BLOB.MODE_READWRITE);
//OutputStream tempBlobWriter = returnFileContentsBLOB.getBinaryOutputStream();
OutputStream tempBlobWriter = returnFileContentsBLOB.setBinaryStream(1);
tempBlobWriter.write(returnFileContents);
tempBlobWriter.flush();
tempBlobWriter.close();
returnFileContentsBLOB.close();
return returnFileContentsBLOB;
catch (IllegalArgumentException ex) {
ex.printStackTrace();
throw ex;
catch (FileNotFoundException ex) {
ex.printStackTrace();
throw ex;
catch (IOException ex)
ex.printStackTrace();
throw ex;
catch (java.sql.SQLException ex)
ex.printStackTrace();
throw ex;

860411 wrote:
Hi Team,
I am unable to compile the java class in the SQL PLUS in dev1 and dev2. It is giving the following error.
But the same class get Compiled in the Toad(Tool) without any error and working fine. Could someone help me
What to do for this for your reference ,Attaching the java class file.
“ORA-29536: badly formed source: Encountered "<EOF>" at line 1, column 28.
Was expecting one of:
I believe the error message is clear and self-explanatory.
----------------------Here is the Java class Code.....................
create or replace and compile java source named "XXVM_ZipFileUtil_Ela"
as
import java.math.BigDecimal;
import java.util.zip.Deflater;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import oracle.sql.*;
import oracle.jdbc.*;
import java.sql.*;
import java.io.*;
public class XXVM_ZipFileUtil_Ela
public static oracle.sql.BLOB getZipFile(
oracle.sql.CHAR zipFilePathCHAR, oracle.sql.CHAR zipFileNameCHAR,
int fileBufferSize, int zipFileBufferSize,
boolean deleteZipFile, java.sql.Array fileNames, java.sql.Array fileContents, java.sql.Array fileContentsLength)
throws IllegalArgumentException, FileNotFoundException, IOException, java.sql.SQLException
String zipFilePath = (zipFilePathCHAR == null) ? null : zipFilePathCHAR.stringValue();
String zipFileName = (zipFileNameCHAR == null) ? null : zipFileNameCHAR.stringValue();
String zipPathAndFileName = new String(
new String(zipFilePath == null || zipFilePath == "" ? "/tmp/" : zipFilePath) +
new String(zipFileName == null || zipFileName == "" ? System.currentTimeMillis() + ".zip" : zipFileName));
byte[] buffer = new byte[fileBufferSize == 0 ? 100000000 : fileBufferSize];
try
Connection conn = DriverManager.getConnection("jdbc:default:connection:");
oracle.sql.CLOB[] fileContentsCLOB = (oracle.sql.CLOB[])fileContents.getArray();
String[] fileNamesString = (String[])fileNames.getArray();
BigDecimal[] fileContentsLengthNumber = (BigDecimal[])fileContentsLength.getArray();
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipPathAndFileName));
zipOut.setLevel(Deflater.DEFAULT_COMPRESSION);
for (int i = 0; i < fileNamesString.length; i++) {
System.out.println(i);
zipOut.putNextEntry(new ZipEntry(fileNamesString));
InputStream asciiStream = fileContentsCLOB[i].getAsciiStream(1L);
int asciiReadCount = asciiStream.read(buffer,0,fileContentsLengthNumber[i].intValue());
zipOut.write(buffer, 0, fileContentsLengthNumber[i].intValue());
zipOut.closeEntry();
zipOut.close();
byte zipFileContents[] = new byte[zipFileBufferSize == 0 ? 100000000 : zipFileBufferSize];
FileInputStream zipIn = new FileInputStream(zipPathAndFileName);
int byteCount = zipIn.read(zipFileContents);
zipIn.close();
byte returnFileContents[] = new byte[byteCount];
System.arraycopy(zipFileContents,0,returnFileContents,0,byteCount);
String returnFileContentsString = new String(returnFileContents);
if (deleteZipFile)
boolean deletedFile = (new File(zipPathAndFileName)).delete();
oracle.sql.BLOB returnFileContentsBLOB = null;
returnFileContentsBLOB = BLOB.createTemporary(conn, true, BLOB.DURATION_SESSION);
returnFileContentsBLOB.open(BLOB.MODE_READWRITE);
//OutputStream tempBlobWriter = returnFileContentsBLOB.getBinaryOutputStream();
OutputStream tempBlobWriter = returnFileContentsBLOB.setBinaryStream(1);
tempBlobWriter.write(returnFileContents);
tempBlobWriter.flush();
tempBlobWriter.close();
returnFileContentsBLOB.close();
return returnFileContentsBLOB;
catch (IllegalArgumentException ex) {
ex.printStackTrace();
throw ex;
catch (FileNotFoundException ex) {
ex.printStackTrace();
throw ex;
catch (IOException ex)
ex.printStackTrace();
throw ex;
catch (java.sql.SQLException ex)
ex.printStackTrace();
throw ex;
The last two lines above should be
/Srini

Seek help to format spool file from SQL*PLUS

I am running a Unix shell script to call a Oracle 11g SQL script from a Oracle database. In this SQL script, I need to connect to many different remote databases to select data, then sool these records as one big text file to a directory. Then email the file to related Group users. In the spool file, there is a line on the top of each page like this:
DUMMY
DB_NAME
I know this is caused by connect to remote database in SQL*PLUS. My connection string is like this:
Conn system/password@Oracle_SID
How can I remove these lines or how to skip these lines into spool file? Please advise. Thanks in advnce. Wish all of you Happy New Year!!!

Hi,
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How can I spool file in SQL*Plus using sysdate as filename?

Dear Oracle Experts,
Would you help me to solve following problem?
I want spool a file in SQL*Plus but using sysdate as filename.
e.g. today is 30-Nov-1999
then the filename is 19991130.lst
tommorrow is 1-Dec-1999
then the filename is 19991201.lst
My e-mail address is [email protected]
Thanks!!!
Tony Sit
null

Tony Sit (guest) wrote:
: Dear Oracle Experts,
: Would you help me to solve following problem?
: I want spool a file in SQL*Plus but using sysdate as filename.
: e.g. today is 30-Nov-1999
: then the filename is 19991130.lst
: tommorrow is 1-Dec-1999
: then the filename is 19991201.lst
: My e-mail address is [email protected]
: Thanks!!!
: Tony Sit
Tony, hi!
Let you test this way:
set ECHO OFF
set TERMOUT OFF
set FEEDBACK OFF
set VERIFY OFF
SET PAGESIZE 0
SET LINESIZE 80
SET HEADING OFF
spool setout.sql
SELECT 'SPOOL '

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Where can I specify the location of the SQL*PLUS edit/spool directory such that I can change it from the default? I'm running on Linux (Ubuntu 6.10) if that helps...

Check this Link :
Error while Invoking Editor
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Spool size restriction on SQL*Plus

Hi,
I am trying to spool the data from a table to a text file. As the maximum buffer size for spool command is 1000000 in SQL*Plus I am getting BUFFER OVER FLOW error. I know the text file can be created using UTL_file package. Is there any other easy method to capture the data to text file like Spool.
I need to capture nearly 10000 lines (each can have 500 characters).
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Vengad

You 'set termout off' before you execute your script for spooling. The buffer overflow error shows up if you want see the results on screen...
By setting 'termout off' the results would not come on the screen.

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How do I make a more lasting change to the path?This is not really a Java-related question. Setting environment variables (PATH is one of them of course) is an operating system-specific thing.
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Help - Oracle SQL Plus manipulation using JAVA

Hi ,
I want to invoke SQL*Plus from my Java program as well want to write some queries in the same PROCess. I am able to invoke SQL Plus and login into SQL Plus, but i don't know how to proceed further and write queries etc in the same script. My code is as follows:
import java.util.*;
import java.io.*;
public class ExecuteSql
public static void main(String args[])
String[] RunCommand = {"plus33w" , "username/password@dbaseregion" };
try
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int exitVal = proc.waitFor();
System.out.println("Process exitValue: " + exitVal);
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t.printStackTrace();
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Hi Ashish,
This forum is for the Sun Java System Message Queue
product. It is a message server that is an implementation
of the Java Message Service (JMS).
It appears that your question has nothing to do with
Java Message Service or Sun Java System Message Queue.
You should probably check out the list of forums at:
http://developers.sun.com/forums/
to see which forum is best for your question.
regards,
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SQL Plus Error - "Can't open file" when spooling

Hi:
I have a user who is either able or unable to spool when running a script depending on what Oracle user she logs in as. She's always logging in as the same Linux user but connecting to Oracle as different Oracle users via SQL Plus. When spool files are created they are created with that user's account and group settings, so the OS account seems to be fine.
I'm having a problem with the idea that there is an Oracle role or something that controls this. Spool isn't UTL_FILE. Is this a SQL Plus application setting or something?
We're using Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
Thanks

Well, I'm working off an email so maybe they cut and pasted and maybe they didn't. They say the error is
spool error: "Cannot create spool file"
I'll have to recreate their situation and see what it really says. But either way, my confusion is how this same OS user can log in as a different Oracle user and spool away. Perhaps the comment above is correct. It worked the first time and they tried to run under the other account without removing the current file. I tend not to think so because these users have been running similar reports for years and they usually have to remove the old output file before re-running.

Java vs. SQL*Plus spooling

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