SQL Developer 2.1: Poor performance on 11g

We are experiencing poor response times for queries using sql developer 2.1 with our new 11g upgraded database (11.1.0.7). A bit of investigation has shown that a simple
select 1 from dual;
causes
SELECT table_owner, table_name
FROM all_synonyms
WHERE owner IN (USER, 'PUBLIC') AND synonym_name = :1
Has anybody else seen this?
It is not happening with other IDEs.

Have found out that if the data dictinary inquries drop the the SYS qualifier then we can implement the dolution on metalink. Any chance that this alteration can be implemented? At the moment we cannot use the tool as it is causes too many issues.
Colin

Similar Messages

Help how to connecting Oracle SQL Developer 3.0 with Oracle Database 11g

Hello,
I'm new in oracle developer yesterday i setup in my laptop database 11g the last version (11.2.0.1.0), well i follow steps still i got succeed to install, and i got my local host URL and i test my user name and password work very well, my problem now is i try to connect database 11g using Oracle SQL Developer 3.0 (3.0.04.34) but always filed and with my little experience i don't know where the wrong. as i said i test database after finish install is work fine the my URL is https://Ahmed-HP:1158/em and i test my username and password that i already set before is enter normal in my local database, please i need help to know how i connect database with Oracle SQL Developer 3.0 (3.0.04.34).
Thanks,

885173 wrote:
EdStevens, thanks for your quick answer, sorry for my explain was doesn't clear, i open oracle sql developer and choose new connection i set connection name system_orcl username:system password:*i set my password that i create when i setup database*
-Now the link that i got after finish install database is https://Ahmed-HP:1158/em so i have question about this point Hostname and port if the link to access database is this https://Ahmed-HP:1158/em so this mean i typing at Hostname:localhost and port:1158 ?
because the message when i test connection always is filed and I'm sure i typing username and password and SID:orcl as i set when install database.port 1158 is what the dbcontrol (Oracle Enterprise Manager) is listening on. OEM is NOT the database. As far as the database is concerned, OEM is "just another client".
Actually, the database doesn't listen for requests on any port. There is another process, the "listener" that listens for requests to connect to the database. Typically, it listens on port 1521. You should have a tnsnames.ora file set up to resolve a connection request to the correct host. You can read more on this at http://edstevensdba.wordpress.com/2011/02/09/sqlnet_overview/

SQL Developer vs TOAD - query performance question

Somebody made me notice same queries are executing slower in SQL Developer than in TOAD. I'm rather curious about this issue, since I understand Java is "slow" but I can't find any other thread about this point. I don't use TOAD, so I can't compare...
Can this be related to the amount of data being returned by the query ? What could be the other reasons of SQL Dev running slower with an identical query ?
Thanks,
Attila

It also occurs to me that TOAD always uses the equivalent of the JDBC "thick" driver. SQL Developer can use either the "thin" driver or the "thick" driver, but connections are usually configured with the "thin" driver, since you need an Oracle client to use the "thick" driver.
The difference is that "thin" drivers are written entirely in Java, but "thick" drivers are written with only a little Java that calls the native executable (hence you need an Oracle client) to do most of the work. Theoretically, a thick driver is faster because the object code doesn't need to be interpreted by the JVM. However, I've heard that the difference in performance is not that large. The only way to know for sure is to configure a connection in SQL Developer to use the thick driver, and see if it is faster (I'd use a stop-watch).
Someone correct me if I'm wrong, but I think that if you use "TNS" as your connection type, SQL Developer will use the thick driver, while the default, "Basic" connection type uses the thin driver. Otherwise, you're going to have to use the "Advanced" connection type and type in the Custom JDBC URL for the thick driver.

Why is sql developer such a poor piece of software?

It is hands down the worse piece of software I've ever used
I always need to force close it, its extremely slow and just overall SHIT
(I use Mac)

I prefer not to comment on the worse piece of software ever (try out a windows based system for a couple of days and you'll find plenty worse).
On the extremely slow part there are quite a number of things you can do to improve performance, and also quite a number of things you can do to make it worse, so if you try to describe your setup and the exact situation/situations when you notice slowness I'm confident someone in the forum will be able to help you get things up to speed.
As a first suggestion you could check if you are using the Oracle LAF or the MAC one.
Mac may be prettier, but it has been reported many times as buggy and overall I do prefer to keep the same LAF for an application regardless of the OS.

SQL Developer 2.1 general performance feedback

After testing 2.1 for several days, there seems to be a performance regression in the general interface. When running migrations, the application becomes generally unresponsive, unless you click the "run in background" button. By unresponsive, I mean that the dialog only intermittently shows updates as to what it's doing, even though work is continuing behind the scenes.
Also, when running a large script in "execute script" mode (F5), the script output in the lower window lags behind and the actual script window above, where it used to scroll to keep up with the current statement being executed, lags tremendously. Also, the interface is basically unresponsive. Clicking scroll bars doesn't work and the new "ScriptRunner" throbber or cylon scrolling eye thing freezes as well.
Minor problems, but annoying ones. Everything else is great so far, though. Keep up the fantastic work!

Have found out that if the data dictinary inquries drop the the SYS qualifier then we can implement the dolution on metalink. Any chance that this alteration can be implemented? At the moment we cannot use the tool as it is causes too many issues.
Colin

Invalid column index error in sql developer

Hi,
I was trying to create stored procedures, functions and packages in sql developer which is connected to Oracle 11g. My instructor is able to execute all of them without any errors in 10g. However, when I try to execute them, I get- "Invalid column index error". Any suggestions on how to rectify this error?

Hi,
That is probably an
ORA-17003: Invalid column index
Which is a JDBC error. Is Java/JDBC somehow involved?
If not, could you please post one of the failing statements?
Regards
Peter

SQL Developer 3 and simple_integer

Hi can anyone help me with something, I have checked everywhere else and can't find an answer.
Does SQL Developer v 3 support the new 11g data type simple_integer? I have a simple procedure shown below
set serveroutput on;
DECLARE
n simple_integer := 1;
BEGIN
FOR j IN 1..4 LOOP
n := n + 1;
DBMS_OUTPUT.PUT_LINE(TO_CHAR(n, 'S9999999999'));
END LOOP;
FOR j IN 1..4 LOOP
n := n - 1;
DBMS_OUTPUT.PUT_LINE(TO_CHAR(n, 'S9999999999'));
END LOOP;
END;
When I try and run this I get the error
Error report:
ORA-06550: line 2, column 5:
PLS-00201: identifier 'SIMPLE_INTEGER' must be declared
ORA-06550: line 2, column 5:
PL/SQL: Item ignored
When I change simple_integer to integer or pls_integer it works. but the new type of simple_integer doesn't. Can anyone shed light on this because I'm at a loss as to the problem.
Edited by: user9313611 on Oct 5, 2011 6:12 PM
Edited by: user9313611 on Oct 5, 2011 6:21 PM

Hi!
The error is definitly not dependent on your version of SQL-Developer 3.0, but on yout database version.
Test script:
SET serveroutput ON;
SELECT version from v$instance;
DECLARE
    n simple_integer := 1;
BEGIN
    FOR j IN 1..4
    LOOP
        n := n + 1;
        DBMS_OUTPUT.PUT_LINE(TO_CHAR(n, 'S9999999999'));
    END LOOP;
    FOR j IN 1..4
    LOOP
        n := n - 1;
        DBMS_OUTPUT.PUT_LINE(TO_CHAR(n, 'S9999999999'));
    END LOOP;
END;
Test on Oracle 11.2.0.2.0
VERSION
11.2.0.2.0
anonymous block completed
         +2
         +3
         +4
         +5
         +4
         +3
         +2
         +1
Test on Oracle 10.2.0.4.0
VERSION
10.2.0.4.0
Error starting at line 3 in command:
DECLARE
    n simple_integer := 1;
BEGIN
    FOR j IN 1..4
    LOOP
        n := n + 1;
        DBMS_OUTPUT.PUT_LINE(TO_CHAR(n, 'S9999999999'));
    END LOOP;
    FOR j IN 1..4
    LOOP
        n := n - 1;
        DBMS_OUTPUT.PUT_LINE(TO_CHAR(n, 'S9999999999'));
    END LOOP;
END;
Error report:
ORA-06550: line 2, column 7:
PLS-00201: identifier 'SIMPLE_INTEGER' must be declared
ORA-06550: line 2, column 7:
PL/SQL: Item ignored
ORA-06550: line 6, column 9:
PLS-00320: the declaration of the type of this expression is incomplete or malformed
ORA-06550: line 6, column 9:
PL/SQL: Statement ignored
ORA-06550: line 7, column 38:
PLS-00320: the declaration of the type of this expression is incomplete or malformed
ORA-06550: line 7, column 9:
PL/SQL: Statement ignored
ORA-06550: line 11, column 9:
PLS-00320: the declaration of the type of this expression is incomplete or malformed
ORA-06550: line 11, column 9:
PL/SQL: Statement ignored
ORA-06550: line 12, column 38:
PLS-00320: the declaration of the type of this expression is incomplete or malformed
ORA-06550: line 12, column 9:
PL/SQL: Statement ignored
06550. 00000 - "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.
*Action:Best regards,
Matt

DB2 8.1 to Oracle 11g with SQL Developer 3.0

Hi,
I started migrating my DB2 8.1 to Oracle 11g, with SQL Developer 3.0
Basically, I need to migrate TABLES.
I followed these steps:
1) I created a new Oracle database, tablespaces, users, etc.
2) Then, I created both (DB2 and Oracle) connections into SQL Developer 3.0. All works fine.
3) I start capturing one table with the "Copy to Oracle" feature. Done with no errors.
But when I compare the table structure, I see the following problems in Oracle:
a) All fields are NULLABLE = YES. SQL Developer show this field property correctly in DB2: NULLABLE = NO, but not migrated the same!
SOLUTION: All I want is that SQL Developer simply migrating the same value who I have in the DB2. But how?
b) In DB2 I have one field property called COLUM DEFAULT. In Oracle this property is called DATA_DEFAULT. The SQL Developer show this field property correctly for the DB2 tables (for example: 0.0, ' ', etc), but don't migrated the same value! All fields are configured to DATA_DEFAULT = NULL.
SOLUTION: I think this occurs because NULLABLE is migrated with the value YES. Well, all I need is the same above...
NOTE: I tested the SWISSQL DATA MIGRATION software, and it works fine. All tables, field properties and data are migrated sucessfull. But this program is trial version!
Well, I think all of this are BUGS into SQL Developer.
Please, anyone to help me?
Regards,
Ylram

Welcome to the forum!
>
I just did right click in the procedure body and found [Debug, Compile for Debug, Compile, Run].
>
You listed a bunch of things but you didn't say what steps you actually performed and what the result was.
Did you 'Compile'the procedure? until you compile the procedure you can't debug it.
I just created a new procedure and when I select the body it displays in the 'Code' window on the right. But the 'Debug' icon is not enabled because the procedure was not compiled for debug.
When I compile it for debug the 'Debug' icon is now enabled.

Poor performance of new SQL Azure Standard database

This is not new information. The revised SQL models (basic|standard|premium) perform poorly compared to the earlier web|business databases. We are talking orders of magnitude - over 4 minutes to perform an update vs. 19 seconds. (UPDATE Invoice SET
SalesOrderID = O.SalesOrderID FROM Invoice INNER JOIN SalesOrder AS O ON Invoice.InvoiceID = O.InvoiceID for 196043 rows.
Microsoft is saying we can only use the web database until September, 2015. Moving to new model (tried standard S2) will cause the project to fail.
There are numerous posts on the Internet identifying this problem. How do we get Microsoft's attention? This is an Azure killer. Fortunately for us, there are a number of other hosting solutions
available.
If this problem is not resolved in the next few months, we will be forced to abandon Microsoft Azure!
Jim Rand

Our application is a desktop application that communicates to the web role using a single WCF call. In the server pipeline, a call is made to a method that looks like this, except all the error trapping is removed here for brevity:
public static Response Process(Request request)
DateTime startDate = DateTime.UtcNow;
Agents.Agent agent = Agents.AgentFactory.GetAgent(request);
Response response = agent.ProcessRequest();
response.ServiceTime = DateTime.UtcNow - startDate;
return response;
While building this application over the last year, we did occasional performance testing with the Windows client reporting on logout to the server the mean service time for a complete session. Quite frankly, I was amazed at the performance. While
slightly slower than the development machine, the performance was acceptable from the user perspective over the Internet.
Not so anymore. The mean service time on the Azure server has increased dramatically resulting in timeouts.
We will be sticking with the Web edition for one more month during development. At that time, we will switch to Premium(P1) for user acceptance testing. It should be interesting see what the mean, median and standard deviation session server statistics
are.
The performance of SqlAzure web edition is no longer acceptable. I sure hope Premium(P1) makes it.
Jim Rand

URGENT: Migrating from SQL to Oracle results in very poor performance!

*** IMPORTANT, NEED YOUR HELP ***
Dear, I have a banking business solution from Windows/SQL Server 2000 to Sun Solaris/ORACLE 10g migrated. In the test environment everything was working fine. On the production system we have very poor DB performance. About 100 times slower than SQL Server 2000!
Environment at Customer Server Side:
Hardware: SUN Fire 4 CPU's, OS: Solaris 5.8, DB Oracle 8 and 10
Data Storage: Em2
DB access thru OCCI [Environment:OBJECT, Connection Pool, Create Connection]
Depending from older applications it's necessary to run ORACLE 8 as well on the same Server. Since we have running the new solution, which is using ORACLE 10, the listener for ORACLE 8 is frequently gone (or by someone killed?). The performance of the whole ORACLE 10 Environment is very poor. As a result of my analyse I figured out that the process to create a connection to the connection pool takes up to 14 seconds. Now I am wondering if it a problem to run different ORACLE versions on the same Server? The Customer has installed/created the new ORACLE 10 DB with the same user account (oracle) as the older version. To run the new solution we have to change the ORACLE environment settings manually. All hints/suggestions to solve this problem are welcome. Thanks in advance.
Anton

On the production system we have very poor DB performanceHave you identified the cause of the poor performance is not the queries and their plans being generated by the database?
Do you know if some of the queries appear to take more time than what it used to be on old system? Did you analyze such queries to see what might be the problem?
Are you running RBO or CBO?
if stats are generated, how are they generated and how often?
Did you see what autotrace and tkprof has to tell you about problem queries (if in fact such queries have been identified)?
http://download-west.oracle.com/docs/cd/B14117_01/server.101/b10752/sqltrace.htm#1052

Problem in sql developer while connecting to oracle 11g

when am creating a database connection with oracle 11g in sql developer editor it s throwing network adapter could not establish the connection
connection name test
user name system
password system
Role default
Host name localhost
Port 1521
SID orcl
Can any one help me to resolve the problem?
Thanks in advance

Those parameters probably aren't correct.
Is that 11g on your machine? Try to specify the real IP instead. And sure the listener is up?
Also sure about the SID and port?
Hope that helps,
K.

How do I migrate views from MS SQL 2008 to Oracle 11g through SQL Developer

Is there any way to migrate the views from MS SQL 2008 to Oracle 11g through SQL Developer? Please give me some detail steps. Thanks for your help.
Kevin

Hi Kevin,
user13531850 wrote:
Hi Turloch,
When I use migrate to oracle, I got a problem, the migrate tool create a new schema for me in my case (AZTECA_KSMMS), it migrates all the stuffs under that schema (AZTECA_KSMMS). However my application need the all the Oracle data under schema AZTECA instead of AZTECA_KSMMS. Is there any way to specify specific schema (AZTECA) for target oracle database? Schema remapping is available:
First Capture (separately) then during right click convert on the captured model there is a Specify the conversion options with a Object Naming tab where the schema (and other) name changes are editable.
I have not used this recently.
Also during the migration process, when I choose repository, there is a check box for truncate to reset repository to empty state, Do I need to check that truncate Check Box so the repository will be cleared from last migration?The repository can hold multple migration attempts. Check truncate to get rid of previous attempts information. This cleans up the repository - not the destination database.
There are also online database and offline database options during the migration process, what are the difference between these two choices? After I migrated to Oracle, all my views has a red cross icon next to it. Does that mean the view migration is failed or not? Please give me your comments. Thanks for your help.offline: for big (amount of data) databases with simple data types,
uses bcp + files + scripts + sqlldr.
online: for small (amount of data) databases (easier),
uses (Java) jdbc.
The view is likely to be broken - recompiling it may help.
The Oracle schema is created using a .sql file - see under generated in the directory you gave originally in the wizard. There is a .out file that contains the result of running this script including any errors. During conversion there are also likely to be warnings displayed on the UI.
There may be a single issue that is causing multiple issues - if viewa depends on functionb, and functionb is broken, viewa will also fail.
>
Kevin-Turloch
SQLDeveloper Team

Failure to connect to 11G XE from Sql Developer

Hi Gurus,
I have been trying for more than a week to make this work. Basically I am trying to install XE database 11.2.0 on my windows 7 64 bit computer.
I have had problems with the getting the listener up , finally managed to get it up by deleting the Oracle_home and reinstalling 11g XE.
Changed the listener.ora file to include the sid XE - restarted th listener so now its working.
-- I am able to start the instance from command prompt as
SQL> conn / as sysdba
Connected.
SQL> startup
ORACLE instance started.
Total System Global Area 1071333376 bytes
Fixed Size 1388352 bytes
Variable Size 620757184 bytes
Database Buffers 444596224 bytes
Redo Buffers 4591616 bytes
ORA-00205: error in identifying control file, check alert log for more info**
When I checked the log files here are the details
from C:\Oracle11XE\app\oracle\diag\rdbms\xe\xe\alert
<txt>ORA-00210: cannot open the specified control file
ORA-00202: control file: 'C:\ORACLE11XE\APP\ORACLE\ORADATA\XE\CONTROL.DBF'
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
</txt>
Please let me know how I can resolved this issue. The eventual goal is to get the database up and running and be able to conenct from Sql Developer installed on the same machine.
any help will be greatly appreciated.
Here are some details
tnsnames.ora
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = <Cumputername>)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SID = XE)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\Oracle11XE\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:\Oracle11XE\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
(SID_DESC =
(SID_NAME = XE)
(ORACLE_HOME = C:\Oracle11XE\app\oracle\product\11.2.0\server)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = <ComputerName>)(PORT = 1521))
DEFAULT_SERVICE_LISTENER = (XE)
lsnrctl status result
LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.2.0.2.0 - Produ
ction
Start Date 30-JAN-2013 11:35:47
Uptime 0 days 0 hr. 0 min. 13 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Default Service XE
Listener Parameter File C:\Oracle11XE\app\oracle\product\11.2.0\server\network
\admin\listener.ora
Listener Log File C:\Oracle11XE\app\oracle\diag\tnslsnr\ZaidHP\listener\
alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ZaidHP)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "XE" has 1 instance(s).
Instance "XE", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
Thanks
Edited by: user12026382 on Jan 30, 2013 10:57 AM

Hi clcarter
Thanks for your input. I actually did a complete de-install and re-install.
The two things I did differently this time was
1. Delete any ORACLE_HOME or ORACLE_SID variables that were existing and just to make sure check from cmd> set ORACLE_HOME - should return not defined.
(This I found at a different forum)
2. Run the setup (as administrator) this time.
And you guessed it.. It worked. I was able to login to the database. Also could go to the database home page.
Thanks for your inputs.
On a side note.. since I am new to forums, I wanted to know how you quote things in the grey area as you did when you replied 'ORA-00205: error in identifying control file, check alert log for more info'.

Can't connect to Express Edition 11g by sql developer

hello,
i installed the 11g edition and try to connect to it by sql developer. it didn't work, then I noticed there was an older version (10g) on the laptop. So i removed both, and installed the 11g version, but still it doesn't work.
My laptop runs on 32-bit windows 7 so I got the 32bit installer of 11g.
I checked several other threads, but didn't found a solution.
Some information:
connecting by sqlplus
SQL*Plus: Release 11.2.0.2.0 Production on Di Nov 8 09:34:25 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Enter user-name: system
Enter password:
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production
tnsping
TNS Ping Utility for 32-bit Windows: Version 11.2.0.2.0 - Production on 08-NOV-2011 09:32:43
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\11.2.0\server\network\admin\sqlnet.ora
Used HOSTNAME adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTOCOL=TCP)(HOST=fe80::7944:fff9:594b:a534%12)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=fe80::831:366f:f5fe:eab5%16)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=10.1.21.74)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=2001:0:5ef5:79fb:831:366f:f5fe:eab5)(PORT=1521)))
OK (0 msec)
lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Production on 08-NOV-2011 09:29:24
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.2.0.2.0 - Production
Start Date 08-NOV-2011 08:51:17
Uptime 0 days 0 hr. 38 min. 7 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Default Service XE
Listener Parameter File C:\oraclexe\app\oracle\product\11.2.0\server\network\admin\listener.ora
Listener Log File C:\oraclexe\app\oracle\diag\tnslsnr\W7-008436\listener\alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=W7-008436.iconos.be)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=W7-008436.iconos.be)(PORT=8080))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "XEXDB" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
Service "xe" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
The command completed successfully

bop wrote:
The error message indicates that Oracle XE is not running. You can check that in several ways, e.g. by entering Computer Management - select Services and check if OracleServiceXE and OracleXETNSListener are running.
You can also check log files (*.log,*.trc) in directory C:\oraclexe\app\oracle\diag\rdbms\xe\xe\trace and look for error messages.the services were started.
I found an error in the "alert_xe.log"
Errors in file C:\ORACLEXE\APP\ORACLE\diag\rdbms\xe\xe\trace\xe_j000_388.trc:
ORA-12012: error on auto execute of job "SYS"."BSLN_MAINTAIN_STATS_JOB"
ORA-06550: line 1, column 807:
PLS-00201: identifier 'DBSNMP.BSLN_INTERNAL' must be declared
ORA-06550: line 1, column 807:
file xe_j000_388.trc: Trace file C:\ORACLEXE\APP\ORACLE\diag\rdbms\xe\xe\trace\xe_j000_388.trc
Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production
Windows NT Version V6.1
CPU : 2 - type 586, 2 Physical Cores
Process Affinity : 0x0x00000000
Memory (Avail/Total): Ph:2120M/3063M, Ph+PgF:4631M/6124M, VA:1095M/2047M
Instance name: xe
Redo thread mounted by this instance: 1
Oracle process number: 27
Windows thread id: 388, image: ORACLE.EXE (J000)
*** 2011-11-14 08:35:58.999
*** SESSION ID:(102.5) 2011-11-14 08:35:58.999
*** CLIENT ID:() 2011-11-14 08:35:58.999
*** SERVICE NAME:(SYS$USERS) 2011-11-14 08:35:58.999
*** MODULE NAME:(DBMS_SCHEDULER) 2011-11-14 08:35:58.999
*** ACTION NAME:(BSLN_MAINTAIN_STATS_JOB) 2011-11-14 08:35:58.999
ORA-12012: error on auto execute of job "SYS"."BSLN_MAINTAIN_STATS_JOB"
ORA-06550: line 1, column 807:
PLS-00201: identifier 'DBSNMP.BSLN_INTERNAL' must be declared
ORA-06550: line 1, column 807:
PL/SQL: Statement ignoredso apparently somewhere the parameter DBSNMP.BSLN_INTERNAL is not declared, but how do i fix it?
bop wrote:
I don't quite understand the mention of hostname related to sqlplus, do you have several Oracle installations? On a machine with Oracle XE you can normally select "Run Sql Command Line" and you are prompted like this:
SQL*Plus: Release 11.2.0.2.0 Production on To Nov 10 23:47:26 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
SQL> connect system/pwd
Connected.
SQL>it was a reply to the post of orafad

Performance issues for sql developer

1. Does leaving DB connection open from a SQLNavigator has any impact on the DB resources and performance?

That depends.
If you run a query or browse a table with parallel setup and leave a grid open - you could leave many processes sitting idle on the server waiting for you to fetch the records down.
But in general, 'no.'
Also, what do you mean by a 'SQLNavigator' - you mean SQL Developer, yes?

SQL Developer 2.1: Poor performance on 11g

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