Connection to an Oracle database

Similar Questions

• Connect to the Oracle database fails when you use Microsoft ODBC or OLE DB Driver

  There was a problem when you apply the KB3126587 hotfix where connections to an Oracle database using the Microsoft ODBC driver fails if run from automated processes. Running the same process manually would succeed. The update issued KB3147071 solved the problem successfully.

  Yesterday, several patched have been applied and the problem came back. The patches are: KB2862152, KB2868626, KB3163244, KB3168965, KB3170455, KB3163251.

  I saw yet no acknowledgement or difficulty of Microsoft. I prefer not to uninstall security patches, but it is a problem of production.

  Any ideas what specific patch maybe breaking it again?

  Thank you

  Josh

  Server: Windows 2008 R2

  Hello

  Post your question in the TechNet Server Forums, as your question kindly is beyond the scope of these Forums.

  http://social.technet.Microsoft.com/forums/WindowsServer/en-us/home?category=WindowsServer

  See you soon.

• To connect to an Oracle database using oracle.jdbc.OracleDriver: error

  Hello

  I am trying to connect to an Oracle database so that we can extract information on tables, views, and packages.

  Using the Data Modeler (transformation script) API, we will add these notes to the corresponding objects in the Data Modeler.

  I'll start with this:

  importPackage (java.lang);

  importPackage (java.awt);

  importPackage (java.sql);

  java.lang.Class.forName ("oracle.jdbc.OracleDriver");

  An error occurs when I run this code:

  

  It must be something of Java...

  Someone at - it a suggestion?

  Problem solved! A colleague of mine referred to in this post: import def properties from Oracle Designer

  More in detail: it's this couple of lines:

  Copy the file ojdbc6.jar for... Directory of \datamodeler-home\jlib

  Add this line to datamodeler.conf

  AddJavaLibFile... /... /jlib/ojdbc6.jar

  I changed my file datamodeler.conf, DM rebooted and now is no longer an error when I try to use the Oracle JDBC drive.

• How to connect to an Oracle database using acrobat form field java script actions

  I have a PDF template with buttons and form fields. One requirement is that when a key is pressed, I want to connect to an Oracle database to change the data of the table inside the DB.

  I wrote "Mouse Up" event and set a Java script to run on this event. Java script I am trying to connect to the DB and Transact on the DB.

  Any ideas how to achieve this.

  Thank you.

  Assuming you are using Acrobat (or reader) XI or newer, it is no longer possible.

  There used to be a way to connect to a PDF file using a script and ADBC, a DB defined locally, but Adobe removed in favour of this option progressively and now it is completely obsolete.

  The only type of PDF files that can still do are those created using LiveCycle Designer.

• Connect to the Oracle database on a guest VM - problem

  Hi all
  
  I was faced with a problem with my Oracle VM. Let me explain:
  
  I have a virtual machine running CentOS 6 with Oracle Database 11 g 11.2.0 installed. I want to do is use SQL Developer, Toad, SQL * PLUS the host machine that is running Windows 7 64 bit.
  The virtual machine uses a host-only adapter network connection and a bridged adapter (for when I need to use internet in the box).
  Here's the question, I can ping the virtual machine to the host without problem and also I can ping the host of the virtual machine. But I can't do tnsping between the host and the VM.
  
  Listening port is configured as a default (port 1521) and the tnsnames.ora in hospitality is OK, but when I tnsping it I get messages from downtime.
  
  Is this something related to the network between the host and the VM? Can someone seated?
  Please let me know if you need more information on.
  
  Thanks in advance.

  Jaumzors wrote:
  Hi all

  I was faced with a problem with my Oracle VM. Let me explain:

  I have a virtual machine running CentOS 6 with Oracle Database 11 g 11.2.0 installed. I want to do is use SQL Developer, Toad, SQL * PLUS the host machine that is running Windows 7 64 bit.
  The virtual machine uses a host-only adapter network connection and a bridged adapter (for when I need to use internet in the box).
  Here's the question, I can ping the virtual machine to the host without problem and also I can ping the host of the virtual machine. But I can't do tnsping between the host and the VM.

  Listening port is configured as a default (port 1521) and the tnsnames.ora in hospitality is OK, but when I tnsping it I get messages from downtime.

  Is this something related to the network between the host and the VM? Can someone seated?
  Please let me know if you need more information on.

  Thanks in advance.

  http://www.Cyberciti.biz/FAQ/turn-on-turn-off-firewall-in-Linux/

• Connect to the Oracle database - does not connect

  I am new to JAVA and for the first time that I am trying to connect to an Oracle using JAVA data. Well, I get an error when you try to connect to the database. I can see that the error doesn't that make strings passed to make the databases of connection are NULL. Thus, an error (see error below).
  
  Question
  How is the 'connection' varriable is NULL?
  It seems that the hold 'try' session was not executed. This session is broken?
  
  ERROR
  
  The database connection is not found: null
  Database connection before call: null
  Exception in thread "main" java.lang.NullPointerException
  at TestOCIApp.main (TestOCIApp.java:39)
  
  
  = JAVA START program =.
  
  import java.sql. *;
  import java.sql.Connection;
  to import java.sql.DriverManager;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.sql.Statement;
  
  public class TestOCIApp {}
  
  Public Shared Sub main (string args []) throws ClassNotFoundException,
  SQLException {}
  
  Fitting out = null;
  try {}
  Load the JDBC driver
  String driverName = "oracle.jdbc.driver.OracleDriver";
  Class.forName (driverName);
  
  Create a connection to the CCM PROD database
  String serverName = "192.168.2.144";
  String portNumber = "1521;
  String sid = "op01ccdb01";
  String url = "JDBC: thin: @" + serverName + ":" + portNumber + ":" + sid;
  String username = 'user id ';
  String password = "password";
  connection = DriverManager.getConnection (url, username, password);
  System.out.println ("connection value:" + connection);
  
  } catch (ClassNotFoundException e) {}
  The database driver is not found
  System.out.println ("could not find the connection to database:" + connection);
  } catch (SQLException e) {}
  Could not connect to the database
  System.out.println ("could not connect to the database connection:" + connection);
  }
  
  System.out.println ("connection to the base before the call:" + connection);
  Statement stmt = connection.createStatement ();
  ResultSet rset = stmt.executeQuery ("select" driver Tester Hello OIC ' |) THE USER: '! ("' result from double ');
  While (rset.next ())
  System.out.println (RSet.GetString (1));
  RSet.Close ();
  stmt. Close();
  Connection.Close;
  }
  }
  
  
  = END of JAVA program =.

  The try section runs very well but only partially because you get the exception "ClassNotFoundException", which means that it is impossible to load the Oracle driver class (so it does not reach the line where it says):

  Class.forName(driverName);
  

  You intercept this exception and then simply print a line "could not find the database connection: null". Then you let the code continue, obviously without you still initialize your variables.

  I would recommend rewriting those catch blocks throw new RuntimeException so that the code will not continue any further when an error is detected in the try or don't catch not all of them if you donot want to manage them appropriately.

  As for your problem, you probably have not added the ojdbc14.jar is to your project, and this is why it cannot find the class OracleDriver.

  Finally, try adding {noformat}

  {noformat} around your code when you post code.  It makes it a lot more readable.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
  

• Unable to connect to remote oracle database!  Help, please!

  Hi all-
  
  I am a new user Oracle and you are allowed to access a remote Oracle database, however I have problems with the installation/configuration program! I downloaded the driver Oracle and the Instant Client (11.2.0.2.0) because I need to use Microsoft Access for the data access (the Access database is already configured to the correct Oracle database). I'm under the impression that, to do this, I need to be able to use the ODBC Administrator to get all set up. Note: Im working on Windows XP.
  
  I have questions:
  
  -I don't seem to have installed Netca (which seems to be the recommended method to configure a connection). I have manually adjusted the TNSNAMES file. ORA file so it matches the database, but I'm not sure what would be my next step.
  
  -When I open SqlPlus it wants a username and password, and I tried the default settings and got an error each time. I must first use SqlPlus, or establish a connection via ODBC first?
  
  -Also: ODBC requires a TNS Service name, and I'm not sure, where this is established; something that would give the database manager?
  
  I really just do not know how to configure this remote connection! I continue to run with obstacles and really want a reference "step by step" on the way to do it, if there is such a thing. Any help or additional reference material would be appreciated! I ran by the content of the forum, but have not been able to decode the jargon! Thank you very much in advance.
  
  Marilyn

  MsMonroe wrote:
  Hi Ed-

  I use the Oracle's ODBC driver. I think there may be a problem with the TNSnames file because I tried to add this file as a"Data Source", and he also said that a connection could not be established. What do you mean by the MS implemented? A configuration of Data Source?

  By MS implemented, I was referring to the MS ODBC for Oracle driver, against the Oracle ODBC for Oracle driver.

  The "source of data file' has nothing to do with the tnsnames file. The ODBC Manager retains its DSN definitions in one of three places. "User DSN" is stored in the HKEY_LOCAL_USER registry, the "System DSN" definitions are stored in the HKEY_LOCAL_MACHINE registry and 'FILE DSN"definitions is stored in a file... I don't remember exactly where or what it's name is as I have (when he is forced to deal with odbc) just keep things simple and use "system dsn". But these aren't all the definitions of ODBC, Oracle tnsnames file.

  The link between the ODBC DSN and the tnsnames.ora presents itself as a property of the ODBC definition. Suppose you have this for a tnsnames.ora entry:

  houston =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = vmlnx01)(PORT = 1521))
      )
      (CONNECT_DATA =
        (SERVICE_NAME = orcl)
      )
    )
  

  Then
  -When you set up your odbc dsn, if you use the MS for Oracle driver, you must specify 'houston' as the 'server '.
  -When you set up your odbc dsn, if you use the Oracle odbc driver, you must specify "houston" as "the TNS Service name".

  >

  Im going to try to post a modified version of the content of my TNSnames.ora file (for some reason any the "content is not allowed ' by the forum), but I would like to get some comments on whether the structure of the content may be the problem.

• Create the connection to the Oracle database

  How do I create oracle database connection using flex.

  Please mention all necessary codewise and sage (for flex as well as Oracle9i) configuration

  Thanks in advance.

  VjFlex,

  looking at your line of code

  url="DataConn.php?lal='sds'"
  

  I would not have thought you need them ' brands around sds. Unless your php code is something dindane special to manipulate, you would put normally just lal = sds and everything would be fine.

  You also say "Please pass the asp.net code, you did to do the same thing. Of course, I can't at the moment past on the actual code but the principles are the following (I use c# in ASP.NET as language server-side in this case and SQL server in the database and did not show the string for connection etc - you already know how to do as your database)

  sql_call = "select top 10 t1.a, t2.b, t2.c from t1, t2 where t1.id=t2.id order by a";sql_server_command = new SqlCommand(sql_call, sql_server_connection);sql_server_command.CommandType = CommandType.Text;sql_server_data_adapter = new SqlDataAdapter(sql_server_command);dataset = new DataSet();sql_server_data_adapter.Fill(dataset);datatable = dataset.Tables[0];call_encoded = "";for (int i = 0; i < datatable.Rows.Count; i++)  {    data_record = "" +      "" + datatable.Rows[i][0].ToString() + "" +      "" + datatable.Rows[i][1].ToString() + "" +      "" + datatable.Rows[i][2].ToString() + "" +      "";    call_encoded += data_record;  } // for icall_encoded += "";return call_encoded;
  

  Hope that helps. You can see that the returned table is converted into XML so that once back in Flex, it can be easily managed.

  Richard

• sqlplus to connect to remote oracle database server

  Hello
  
  I have the server database oracle 10g on solaris 10 and I usually connect using my account to solaris and run sqlplus on the server itself. This works!
  
  I downloaded and installed the client instant oracle for solaris 64 and I can launch sqlplus command but I'm confused on what should be the syntax of the command to connect to remote oracle and solaris 10 database server where I have the system account.
  
  I tried sqlplus help but still I could not correct syntax that may be used to authenticate to the oracle server.
  
  I tried
  
  sqlplus user@hostname:1512/SID
  
  then he asked for password, but when I typed the password and you press on enter, it gave some error
  
  but he still asked as username so I type user@SID and then prompt password - typed password and it works!
  
  so I do not understand what should be the correct syntax for that in the first attempt, I'm able to connect.
  
  If possible, please give the exact command with realworld examples, (I tried with sqlplus - help already)
  
  Thanks in advance.

  wonder what if I didn't tnsnames.ora on the client machine, how will be the syntax?

  You generally need (or at least strongly want) a file tnsnames.ora on the client machine.

  -You could configure Oracle Internet Directory and allow this product provide TNS alias resolution for the Organization (similar to the DNS configuration for a LAN).
  -Many tools (I have not personally tried SQL * more and it can be dependent on version) allow you to specify the whole TNS alias in the tnsnames.ora file (i.e. everything that follows the abcd.domain.com = entry) but which is extremely heavy for type
  -According to the version of the Oracle file sqlnet.ora, the complexity of your configuration client (that is, if you try to use the more advanced features such as failover), you may be able to use the syntax EZConnect

  sqlplus username/password@host:port:SID/service_name
  

  Where host is the server that the database is running, the port is the port the listener (i.e. 1521 default) listening and SID/service_name is the SID or service name, you are trying to connect to.

  Justin

• problem connecting to the oracle database.

  A user cannot connect to the Oracle server. What will be the problem and the solution to the problem?

  When you post here you must give us: error codes, logs, DB versions, SO it's 32-bit is 64-bit?

  Give us more details about your problem and maybe I can help you.

• Failed to connect to my Oracle database

  Hi guys,.
  
  I installed Oracle Enterprise 11 GR 2 db on a CentOS 6.2 running Linux.
  It installed successfully.
  I have configured the listener on linux, I have created a database, I started an instance, etc... You can see the lsnrctl status command output:
  
  
  [+[Oracle@r3tard ~] $ lsnrctl status +.
  
  LSNRCTL for Linux: Version 11.2.0.1.0 - Production on April 21, 2012 10:29:04
  
  Copyright (c) 1991, 2009, Oracle.  All rights reserved.
  
  Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST=localhost) (PORT = 1521)))
  STATUS of the LISTENER
  ------------------------
  Alias LISTENER
  Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
  Start date April 21, 2012 10:28:05
  Uptime 0 days 0 h 0 min 58 sec
  Draw level off
  Security ON: OS Local Authentication
  SNMP OFF
  Parameter Listener of the /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora file
  The listener log file /home/Oracle/app/Oracle/diag/tnslsnr/r3tard/listener/alert/log.XML
  Summary of endpoints listening...
  + (Description = (Address = (Protocol = TCP)(Host=r3tard) (port = 1521))) +.
  Summary of services...
  Service "mydb" has 1 instance (s).
  Instance "mydb", State LOAN, has 1 operation for this service...
  Service 'mydbXDB' has 1 instance (s).
  Instance "mydb", State LOAN, has 1 operation for this service...
  The command completed successfully
  
  Now I try to connect from a windows machine, I installed Oracle Client, tnsnames.ora Configuration but it seems that my connection time to the top. All firewalls are disabled and is from my home network, there is no other packet filtering.
  
  Can someone give me a hint? I am a beginner in all this oracle thing and maybe I did something wrong...
  Here you have the listener.ora for linux and tnsnames.ora on the windows machine:
  
  Listener.ora*.
  + listener.ora # Network Configuration file: /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora+
  + # Generated by Oracle configuration tools. +
  
  LISTENER =
  + (DESCRIPTION_LIST = +
  + (DESCRIPTION = +
  + (ADDRESS = (PROTOCOL = TCP)(HOST=localhost) (PORT = 1521)) +.
  +)+
  +)+
  
  ADR_BASE_LISTENER = / home/oracle/app/oracle
  
  tnsnames.ora*.
  + tnsnames.ora # Network Configuration file: C:\Users\Sharky\Documents\product\11.2.0\client_1\network\admin\tnsnames.ora+
  + # Generated by Oracle configuration tools. +
  
  MYDB =
  + (DESCRIPTION = +
  + (ADDRESS_LIST = +
  + (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.104)(PORT = 1521)) +.
  +)+
  + (CONNECT_DATA = +
  + (Service_name = MyDB) +.
  +)+
  +)+
  
  
  Thanks in advance!

  capitanui wrote:
  I did, I set up the/etc/hosts on the host Windows and linux so that I can ping successfully BOTH host names and IP #.

  The problem is that I can not connect.

  tnsping mydb gives me: TNS-12535: TNS:operation has expired.

  Another idea?
  Thanks in any case!

  The most common cause for the TNS-12535 is firewall between client & DB Server.
  ipchains on * NIX may be enabled & get in the way.

  What clues are there near the tail of the log listener on DB server?

• Unable to connect to remote oracle database

  Hello
  
  I am trying to connect to the database on a remote server oracle in visual studio 2005 by using instant client for windows.
  
  In visual studio 2005 Server Explorer, I clicked on add a connection
  Server name: I entered the server ip:1521@my instance name
  then user and password.
  
  It gives me the error: ORA-12546 TNS permission denied.
  
  I tried searching for lsnrctl status on the remote server, it works fine, and I can connect using sqlplus.
  
  I also disabled the firewall to avoid the risk of blocking, however tried my windows box: telnet ip 1521, it just does not respond and seems to timeout.
  
  should I set in the remote server first to accept connecting from outside?
  
  

  To connect via .NET with Instant Client, you will need the version 11 ODAC, see
  http://www.Oracle.com/technology/software/tech/Windows/odpnet/utilsoft.html

  The regular customer Instant download from http://www.oracle.com/technology/software/tech/oci/instantclient/index.html
  does not contain the provider .NET.

  If telnet hangs without error message, this is of course no evidence that you can successfully connect to the database.
  It only means that you have reached the listening process, which is the best you can do with telnet.

  Yours,
  Laurenz Albe

• Connect to the Oracle database

  Is there a 'good' documentation out there show me what I need to do, step by step would be well configure CF to work with an Oracle DB?

  I've never worked with before Oracle so I'm not familiar with all of their ODBC drivers or how to set them up.  You would think that there is a kind of tutorial out there somewhere to do!  Frustrated... > :(

  Hello

  ColdFusion Standard is not Oracle driver, you must use Oracle thin driver that supports the version of Oracle that you run in your environment.

  1. download the thin driver and copy it to \ColdFusion9\lib.

  2. restart ColdFusion service so that it will load the driver class.

  3. connect to CF Admin > Datasources > adds a new DB > select other drop down.

  4 URL = jdbc:oracle:thin:@//{HostName}:/SID = "{SID_NAME}.

  5 class driver: oracle.jdbc.driver.OracleDriver

  I hope this helps.

  Thank you

  Priyank

• Check the connection to a remote Oracle database

  
  Hello

  I have an application that runs on a server that connects to an Oracle database on another server.  The application uses Java and JNDI to connect, there is no Oracle client installed on the server hosting the application.  The application seems to have been to connect to the database on the other server.  How can I check that the connection to the database still work from the server hosting the application?  Is there a software tool that I use does not require Oracle client must be installed.

  Thanks in advance

  Alanjo

  the connection request is saved in the file listener.log on the DB server

• How to connect Microsoft excel to oracle database?

  version Oracle 11.2.0.3
  version of solaris 10 operating system
  Microsoft excel 2007
  
  any body can help me how to connect excel, oracle database, I can write my query in excel, and retrieve data from oracle database and show in excel sheet or I can write a query to insert data to the oracle database.

  Hello

  I never tried, but why not try so if you succeeded you will come to know otherwise you would need still oracle client to connect to the oracle database that is located on the other server or if you do not have to install on your local machine that you cannot connect to the oracle database oracle client.