I am trying to connect XPagesJDBC.nsf to a simple MS Access database,
it connects Successfully and i am able to perform the #JdbcInsert , Update, Delete. also able to execute SQL Query operations.
But i am facing an issue while trying to showing data in ViewPanel control with JDBC Query datasource type.
It give bellow error
Error while reading the relational data
Invalid Fetch Size
and a long StackTrace, i am copying some part of stack trace bellow;
I think this error is specific to MS Access, because i could find some successful implementation with other RDBMS also it work fine with "durby" at my end.
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:840)
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:851)
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:851)
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:851)
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:851)
com.ibm.xsp.component.UIViewRootEx._renderView(UIViewRootEx.java:1317)
com.ibm.xsp.component.UIViewRootEx.renderView(UIViewRootEx.java:1255)
com.ibm.xsp.application.ViewHandlerExImpl.doRender(ViewHandlerExImpl.java:641)
com.ibm.xsp.application.ViewHandlerExImpl._renderView(ViewHandlerExImpl.java:320)
com.ibm.xsp.application.ViewHandlerExImpl.renderView(ViewHandlerExImpl.java:335)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:103)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:210)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:120)
com.ibm.xsp.controller.FacesControllerImpl.render(FacesControllerImpl.java:264)
com.ibm.xsp.webapp.FacesServlet.serviceView(FacesServlet.java:248)
com.ibm.xsp.webapp.FacesServletEx.serviceView(FacesServletEx.java:200)
com.ibm.xsp.webapp.FacesServlet.service(FacesServlet.java:160)
com.ibm.xsp.webapp.FacesServletEx.service(FacesServletEx.java:137)
com.ibm.xsp.webapp.DesignerFacesServlet.service(DesignerFacesServlet.java:103)
com.ibm.designer.runtime.domino.adapter.ComponentModule.invokeServlet(ComponentModule.java:576)
com.ibm.domino.xsp.module.nsf.NSFComponentModule.invokeServlet(NSFComponentModule.java:1267)
com.ibm.designer.runtime.domino.adapter.ComponentModule$AdapterInvoker.invokeServlet(ComponentModule.java:847)
com.ibm.designer.runtime.domino.adapter.ComponentModule$ServletInvoker.doService(ComponentModule.java:796)
com.ibm.designer.runtime.domino.adapter.ComponentModule.doService(ComponentModule.java:565)
com.ibm.domino.xsp.module.nsf.NSFComponentModule.doService(NSFComponentModule.java:1251)
com.ibm.domino.xsp.module.nsf.NSFService.doServiceInternal(NSFService.java:598)
com.ibm.domino.xsp.module.nsf.NSFService.doService(NSFService.java:421)
com.ibm.designer.runtime.domino.adapter.LCDEnvironment.doService(LCDEnvironment.java:341)
com.ibm.designer.runtime.domino.adapter.LCDEnvironment.service(LCDEnvironment.java:297)
com.ibm.domino.xsp.bridge.http.engine.XspCmdManager.service(XspCmdManager.java:272)
java.sql.SQLException: Invalid Fetch Size
sun.jdbc.odbc.JdbcOdbcStatement.setFetchSize(JdbcOdbcStatement.java:838)
sun.jdbc.odbc.JdbcOdbcResultSet.setFetchSize(JdbcOdbcResultSet.java:2987)
com.ibm.xsp.extlib.jdbc.model.JdbcDataBlockAccessor.loadBlock(JdbcDataBlockAccessor.java:389)
com.ibm.xsp.extlib.model.DataBlockAccessor.findBlockByIndex(DataBlockAccessor.java:344)
com.ibm.xsp.extlib.model.DataBlockAccessor.prefetchData(DataBlockAccessor.java:292)
com.ibm.xsp.extlib.model.DataAccessorModel.getRowCount(DataAccessorModel.java:93)
com.ibm.xsp.component.UIPager$PagerState.<init>(UIPager.java:76)
com.ibm.xsp.component.UIPager$PagerState.<init>(UIPager.java:71)
com.ibm.xsp.component.UIPager.createPagerState(UIPager.java:540)
com.ibm.xsp.renderkit.html_extended.XPagerRenderer.encodeChildren(XPagerRenderer.java:67)
com.ibm.xsp.renderkit.ReadOnlyAdapterRenderer.encodeChildren(ReadOnlyAdapterRenderer.java:162)
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:979)
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:842)
com.ibm.xsp.renderkit.html_extended.ViewPanelRenderer.processPagerCell(ViewPanelRenderer.java:656)
com.ibm.xsp.renderkit.html_extended.ViewPanelRenderer.encodeBegin(ViewPanelRenderer.java:354)
com.ibm.xsp.renderkit.ReadOnlyAdapterRenderer.encodeBegin(ReadOnlyAdapterRenderer.java:146)
javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:956)
javax.faces.component.UIData.encodeBegin(UIData.java:788)
com.ibm.xsp.component.UIDataEx.encodeBegin(UIDataEx.java:413)
com.ibm.xsp.component.UIViewPanel.encodeBegin(UIViewPanel.java:288)
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:840)
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:851)
com.ibm.xsp.util.FacesUtil.renderComponent(FacesUtil.java:851)
myconnection.jdbc file ; ext_db is a DSN
<jdbc>
<driver>sun.jdbc.odbc.JdbcOdbcDriver</driver>
<url>jdbc:odbc:ext_db</url>
<user>xxx</user>
<password>xxx</password>
</jdbc>
The tongue-in-cheek-answer: get a database :-)
The problem seems to be well known and plagues others too to quite some extend. The batch-size parameter (first link) might work. You also could revisit your requirements. Would DECS do the trick?
Related
I'm using Simba ODBC to create a connection with Google Big Query and using SSIS (Visual Studio 2019) to read and write information on Big Query. The connection works fine and when I use the ODBC Source with the query option, I'm able to get data from Big Query and used it inside SSIS. But when I use the list of tables, I get an error as below:
Exception of HRESULT: 0xC0014020
Error in Data Flow Task[ODBC Source [100]]: SQLSTATE: 42000, Message: [Simba][BigQuery] (70) Invalid query: Invalid dataset ID ""TEST"". Dataset IDs must be alphanumeric (plus underscores and dashes) and must be at most 1024 characters long.
I believe that this happens because the list of tables appear between ("), instead of (`).
Print of table list
The same happens when I use the ODBC Destination. Is there a way to change the format in which the table list appears ?
Obs.: On the Visual Studio 2015 this table list comes with (`) and I can connect with big query just fine.
I can see that the tool is sending "TEST" as the dataset, however, depending on if Visual Studio is using StandardSQL or LegacySQL, the dataset should be specified as:
# LegacySQL
FROM [myproject:TEST.TABLE_TEST]
# StandardSQL
FROM `myproject:TEST.TABLE_TEST`
I was wondering if Visual Studio accepts a custom query or can be parameterized to remove the quotes. If this doesn't help, could you please share the query that cause the error? I understand that there is a query option (I'm not familiar with Visual Studio) and it is not clear for me the exact moment when the tool returns the error, screenshot without sensitive information would be appreciated.
UPDATE:
You can review the following checkpoints that could help to verify that the Simba driver is correctly set up and it is not the cause of the reported error:
Installation. Check that you are using the last version of the driver. The last version usually contains improvements on the driver.
ODBC Configuration. For example, the Step 13 of the link you will be able to see a drop-down list with the datasets available and select one as the default. If you don't have issues is this step, then the issue could be in the tool that uses the ODBC connection.
Language Dialect. In here you case change between StandardSQL or LegacySQL as needed, for example, you can force your tool to use LegacySQL and use the characters [ and ] that I explained above.
Connection String. If your tool allows to use a string with the connection, you might want to use it and explicitly indicating the default Dataset (among other driver options).
When I tried to use FireDAC FDQuery with MySQL database I got the following error:
Cannot perform this operation on an open dataset.
query.Open(....my connection string to MySQL....);
try
query.ExecSql;
finally
query.Close;
I filled the FDQuery by double-clicking on the icon on the form. I also
connected to the database to test it. It gave back the results correctly.
I would like to use it from code, but it doesn't work, so
I debugged it. I always get to the breakpoint: query.Close;
You can't call Open and ExecSQL on the same SQL, because they do different things.
Use Open when the query will return a result set, which means for a SELECT. Use ExecSQL when the query does not return a result set, which means for an INSERT, DELETE or UPDATE.
I can't tell you which one applies to your situation, because you failed to include your SQL in your post.
I don't know about FireDAC specifically, but in general with these kind of database components, for queries not returning a result set, thus suitable for ExecSQL, you would want to use ExecSQL on the Connection object, in this case TFDConnection. (Which would presumably be the Connection object that your FDQuery object is connected to.)
http://docwiki.embarcadero.com/RADStudio/Rio/en/Executing_Commands_(FireDAC)
Apparently there is an ExecSQL method on TFDCustomQuery, but I'm not sure why you would use that, and as you discovered, it doesn't work if the query is already in use.
I need to connect a MYSQL Database to Matlab in order to work with the measured data. I am using Matlab version 2014a and unfortunately don't have a Datatoolbox to acces.
I found after a lot of research following instruction:
http://hohonuuli.blogspot.com/2014/10/jdbc-and-matlab-simple-example.html
Unfortunately though it failed to get the connection to the database, I am stucked at the database.m script, while getting following error:
database
No method 'getConnection' with matching signature found for class 'java.sql.DriverManager'.
Error in database (line 29)
c = java.sql.DriverManager.getConnection('url', 'username', 'password',
'mysql-connector-java-5.1.46');
I used exactly the script in the following link above ( copy paste ) while putting my username,url,pw etc in.
I am not a programmer by any means but need to find a solution for that, if anyone can help me that would be awesome, THANK IN ADVANCE EIKE
I recently developed a Java client which allow me to query my Hive tables from a simple url .
Unfortunately , since last Thursday the queries seems to have some issues . From time to time , my query which worked before , doesn't return me anything .
So I decided to take a look at my logs, and everytime I do a query this occur :
java.sql.SQLException: Query returned non-zero code: 12, cause: FAILED: Hive Internal Error: java.lang.RuntimeExcep
tion(org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create
directory /tmp/hive-root/hive_2015-06-29_09-19-53_268_7855618362212093455. Name node is in safe mode.
Resources are low on NN. Safe mode must be turned off manually.
I think the issue come from the node itself , because I didn't do any changes on my code or in my hive tables . What do you think the problem come from ? And what can I do to resolve it ?
Thank you for your reading my question .
This was due the cluster automatically entered in safe mode. We fixed it by freeing/adding some disk space.
I am using Hibernate3 with spring application.
I introduced a column in my existing table with many to one relationship with the addition in the .hbm file as mentioned below:
<many-to-one name="qualityStatus" column="quality_status"
class="model.PurchaseStatus" lazy="false" fetch="join"/>
The corresponding object to this hbm has a property of type 'PurchaseStatus' and field name as 'qualityStatus'.
Now when i try fetching the data from the table representing the above object with the query:
List<Long> dnIds = session.createQuery("select dnItem.dnId from DeliveryNoteItem dnItem where dnItem.qualityStatus!=? and dnItem.qualityStatus!=? and dnItem.qualityStatus!=?")
.setInteger(0,1)
.setInteger(1,5)
.setInteger(2,7)
.list();
i get an error saying as 'java.sql.Exception: Unknown column 'deliveryno0_.quality_status' in 'where clause'
I get this error when deployed on test server but when i check the same thing on my local server i works fine as well when i just run this query directly on the database on the test server it returns me result. So it confirms that the database on the test server is alright. It is only when it executes through the application on the test server i am getting this error.
Can anybody let me know what can be the reason or how do i debug this out.
Thanks in advance. Looking forward for replies.
If you really have a quality_status column in your database, then you should make sure you have the most recent version of your application deployed on the test server, and make sure that the connection url of hibernate really points to the test database.
This is not a hibernate problem, not a programming one. It is environmental - check your configurations and redeploy.