h2 « Connection « Java Database Q&A





1. where to store database string connection in java web app?    stackoverflow.com

I'm about to begin my first project with java Let me tell how I used to handle these things... So far now, I've been workin on asp with a com+ componente made with ...

2. Help me create a jTDS connection string    stackoverflow.com

my sql server instance name is MYPC\SQLEXPRESS and I'm trying to create a jTDS connection string to connect to the database 'Blog'. Can anyone please help me accomplish that ? I'm trying ...

3. h2 in-memory tables, remote connection    stackoverflow.com

I am having problems with creating an in memory table, using H2 database, and accessing it outside of the JVM it is created and running in. The documentation structures the url as ...

4. H2 Database (embedded) connection timeout    stackoverflow.com

I get the following exception when connecting to the database:

org.h2.jdbc.JdbcSQLException: Connection is broken: "connect timed out" [90067-142]
    at org.h2.message.DbException.getJdbcSQLException(DbException.java:327)
    at org.h2.message.DbException.get(DbException.java:156)
    at ...

5. Specifying Encrypted password in JDBC OCI Connection String    stackoverflow.com

I've a standalone application that we use to connect to the Oracle database. In the past, we used JDBC to connect to it, but now due to various reasons we've switched ...

6. How to connect to Play Framework in-memory database using JDBC?    stackoverflow.com

I use the in-memory database that comes with Play Framework, when I have db=mem in the configuration file, for development. How can I connect to this database using JDBC? and not the ...

7. Enforcing a connection timeout when connecting to CouchDB    stackoverflow.com

I use javascript to make ajax calls to a java application that uses jcouchdb to write to a couchdb database. I use the following block to verify the connection and if ...

8. how to get get the JDBC connection url string    stackoverflow.com

I don't know why I can't find this. My library takes a jdbc connection object and I need to support some different meta-data for different connections (which may be to ...

9. H2: open connection, update, close connection and now all my changes are gone?    stackoverflow.com

I am opening a database connection to H2 with the following URL:

jdbc:h2:../webapps/h2_db/MyDB;MODE=MySQL
I go and create a table with a Statement. Then when I am done I close my connection. Then when ...





10. JedisConnectionException: java.net.SocketTimeoutException: connect timed out    stackoverflow.com

I'm using jedis for simple key-value data store... My code is as follows

private static final String HOST = "50.30.35.9"; 
private static final int PORT = 2863;    
Jedis jedis ...

11. What kind of different ways are there for an Java web application to store the JDBC connection string and parameters?    stackoverflow.com

What kind of different ways are there for an Java web application to store the JDBC connection string and parameters? The two ways of doing this that I am aware of is: 1. ...

12. Personal configuration for JDBC connection string    forums.netbeans.org

I'm developing an application that makes use of postgres JDBC driver. Since we're a team, we use svn to collaborate. I have the following problem: in my computer I need my specific connection string for the JDBC driver, while other members of the team may need their own specific connection string. I am new to IDE managed projects and I can ...

13. Database services connection timeout - how to reconnect?    forums.netbeans.org

Using Ubuntu 10.04 and Netbeans 6.9.1. I keep everything running on my machine overnight. Everyday when writing sql queries and I hit a . autocompletion tries to run and gives me a java stack overflow error. The only way I can find to fix this is to restart NetBeans. I've tried disconnecting and reconnecting and refreshing but none of those options ...

14. 'connection string' for ODBC    coderanch.com

15. I'm getting a null value passing my database connection string other class...    coderanch.com

Can someone please help me I'm trying to pass my database connection string to my Main class via returnConnection method. Method returnConnection() is located in class LoginMenu(). I'm not having any luck. It keeps returning a null value. I'm trying to pass the connection from LoginMenu() to Main(). Two files are involved for now. Can someone please give help me out. ...

16. connection string    coderanch.com





17. How Long a connection Object is valid before time out ?    coderanch.com

Hi, We have a strange problem, we have 9 different threads accessing one table (ofcourse thro a synchrnized DBClass method) , each time each thread needs around 2-3 mins and thread will come back in 30 mins. In other words this is more of a continuous process. Once in a week we need to clean up the complete table during that ...

19. Connection Time Out Problem    coderanch.com

Hi, We are facing a problem for Connection time out. I think this is beacuse at some point the connection object is not getting closed. But I am finding it very difficult to debug this as the Connection objects are called from many places. We have a single class for getting the connection object. I tried by giving SOP s before ...

20. Does a Connection time out?    coderanch.com

I create a Connection in a servlet that gets instantiated as per web.xml in a web app. However, after a day or so, trying to log in (where you need the Connection to verify user name and password in the database), the error in the Tomcat Logs is that "Connection.close() has been called.". Do Connections time out? I've added code to ...

21. Connection String    coderanch.com

How to make a connection String?. I m having mysql-4.1.1-alpha as database server. My username to connect the database is "root" and there is no password. I m having com.mysql.jdbc.Driver as database driver to connect to database in my classpath and i m using that driver. I m having a database named "mydatabase". I wanna use a connection String to connect ...

23. DB Connection string with schema name    coderanch.com

As a generic solution you could put schema prefixes on table names, but I suspect you would have already tried that anyways. Not sure if the issue I'll describe is the same for websphere, but just in case it is, the folliwng info might help. More relevant if you are using CMP, not necessarily relevant for anything else. Different databases deal ...

24. Connection String    coderanch.com

if you post explanation of your problem + a possible stack trace then people can help you. in your last post at http://www.coderanch.com/t/304057/JDBC/java/ENTERPRISE-DB i ask you to check and see whether EDB is listening on the port that you try to connect or not. please check it by using : cmd > telnet 127.0.0.1:5444 if telnet connected to that port it ...

25. Set Timeout for Connections    coderanch.com

I'm not sure the 'appropriate solution' for what you are doing, but you could accomplish the same using threading. Spawn a new thread that outputs some value when its complete. Then from the original program, go to sleep for some amount of time (say 10 seconds) then wake up and check if the thread you were waiting for has outputted its ...

26. Query regarding connection string.    coderanch.com

I use: private Connection myDBConn() throws SQLException { DriverManager.registerDriver(new oracle.jdbc.OracleDriver()); String userName = dbUserName; String password = dbPassword; Connection conn = DriverManager.getConnection ( "jdbc:oracle:thin:@192.168.0.100:1521:iasdb", userName, password); gConn = conn; return conn; } where 192.168.0.100 is my db server. But be careful. I am using ojdbc14.jar. So if you are using something else like classes12g.zip, your syntax might be different, like "oracle.jdbc.Driver.OracleDriver" ...

27. Connection timeout issues    coderanch.com

All, I have an application that connects to a DB via JDBC. In the init() method of my app, I'm initializing the connection to the DB. When the client makes a request, the connection will be used to run a query and get the results. My problem is this: mine is a long running server process. It could sometimes be days ...

28. Connection String for DBF    coderanch.com

29. Connection Wait Timeout Exception:    coderanch.com

[residual_billing][ConnectionMgr][02/25 12:24:12.478][DEBUG][Severity 4] [] Not able to get the connection com.ibm.websphere.ce.cm.ConnectionWaitTimeoutException: Connection not available, Timed out waiting for 180000 at com.ibm.ws.rsadapter.AdapterUtil.toSQLException(AdapterUtil.java(Compiled Code)) at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java(Compiled Code)) at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:302) at services.in.gdbilling.config.ConnectionMgr.getConnection(ConnectionMgr.java(Compiled Code)) at services.in.gdbilling.in.dao.ViewProjDAO.getProjInfo(ViewProjDAO.java:69) at services.in.gdbilling.cc.helper.LogonHelper.createRBUser(LogonHelper.java:272) at services.in.gdbilling.ui.logon.actions.LogonAction.execute(LogonAction.java:136) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) at javax.servlet.http.HttpServlet.service(HttpServlet.java:763) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1282) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:673) at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:89) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1897) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:84) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:472) at ...

30. Connection Wait Timeout Exception    coderanch.com

Hi All Please find the below log saying "Connection not available, Timed out waiting for 180000" [02/10/08 13:43:06:595 BST] 00002753 FreePool E J2CA0045E: Connection not available while invoking method createOrWaitForConnection for resource jdbc/raDataSource. [02/10/08 13:43:06:647 BST] 00002753 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl initialize FFDC0009I: FFDC opened incident stream file /apps/was/ws6.1/inst01/profiles/pttcis_cell/pttcis_amswst51/logs/ffdc/pttcdm_amswst51_3_fe536c_08.10.02_13.43.06_0.txt [02/10/08 13:43:06:723 BST] 00002753 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream ...

32. java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.    coderanch.com

Timeout errors are typically an error not caused by your application itself - it's a problem with the connection to the SQL database. If you are not running the application locally, check that you have a good connection to the computer running it, if your ping times are inconsistent or very long then that could be the problem.

34. JDBC Connection object lifetime / timeout?    coderanch.com

Hi, I am using the latest JDBC 5 connector to connect to MySQL. Everything works swimmingly, most of the time !!!. I wrote my own ConnectionPool.java class that basically creates 20 connections in a queue and manages checkin/ out of JDBC connections by the application. ... ... ... connectionQueue = new LinkedBlockingQueue(20); while(connectionQueue.remainingCapacity(... tempConnection = DriverManager.getConnection(URL, UserName, Password); connectionQueue.add(tempConnection); } ... ...

35. whats wrong here in connection string    coderanch.com

36. Setting Connection Time Out    coderanch.com

Hi, Is there any way to set the connection object so that it will preserve for a given time. For instance, if we create a connection object and this connection object must not be timed out before half an hour. I need this because in my module i am creating connection object when connection is null. Once connection got created, it ...

37. JDBC DBCP connection time out    coderanch.com

Hello all, I am having problems when using DBCP to connect to my database. The problem is that the connections in the pool get expired after my program stays stale for about 9 or 10 hours. The next time I try to connect I received the error on connection timeout. I know, in case of DBCP, it is possible to validate ...

38. H2 database - Connection is broken    coderanch.com

39. How to set connection timeout on lcoked record?    coderanch.com

Hi, In order to achieve data accuracy for crucial data, we are locking the records at databse level for some tables while editing -using for e.g select * from employee where employee_id = 123 for update nowait; and unless the user who has locked the above record performs a commit / rollback , the record remains locked for other users. They ...

40. String url for Connection    coderanch.com

41. Connection wait timeout    coderanch.com

Google is your friend: http://download.oracle.com/docs/cd/B28359_01/java.111/e10788/optimize.htm "The connection wait timeout specifies how long an application request waits to obtain a connection if there are no longer any connections in the pool. A connection pool runs out of connections if all connections in the pool are being used (borrowed) and if the pool size has reached it's maximum connection capacity as specified by ...

42. How to find connection string of Database?    java-forums.org

43. jdbc:odbc connection string    forums.oracle.com

I have a server with SQL Server 2005. I have made a .udl file to verify that the DSN is working. The server is up and running everything is working fine. However, I am havign trouble accessing it with my JAVA code. What is the correct format for DriverManager.getConnection();? I am trying: DriverManager.getConnection("jdbc:odbc:DSNNAME;user=username;password=password"); and I am getting: Exception: [Microsoft][ODBC Driver Manager] ...