jdbc can t start a cloned connection while in manual transaction mode
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jdbc can t start a cloned connection while in manual transaction modePlease provide us a way to contact you, Because a local manual transaction is only valid for a single connection the driver throws an error. This allows the driver to enter into manual transaction mode even when multiple statements are open. Progress Software Corporation makes all reasonable efforts to verify this information. However, the information provided is for your information only. Progress Software Corporation makes no explicit or implied claims to the validity of this information. Any sample code provided on this site is not supported under any Progress support program or service. Progress makes no warranties, express or implied, and disclaims all implied warranties including, without limitation, the implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample code is borne by the user. In no event shall Progress, its employees, or anyone else involved in the creation, production, or delivery of the code be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample code, even if Progress has been advised of the possibility of such damages. See Trademarks for appropriate markings. Can't start a cloned connection while in manual transaction mode. I'm using SQL-Server. The code to test connection is:The system just blows without allowing me to catch an exception if the server isn't running. Is there a way I can catch the exception to gracefully send a message to the user to turn on the server first. Nik Doesn't hit either the if statement of the catch if the connection didn't make it?CDatabase::noOdbcDialog);I have a problem working with connection pooling when I open a snapshot of virtual machine.http://www.bizlawyer.ro/userfiles/ingersoll-rand-t30-parts-manual.xml
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When I try to open a connection from the pool I got a timeout failure (I assume it because the snapshot of the VM takes the connection pooling of the application and when I try to reconnect the old connection). For this problem and for others like this I would like use something like:You have to write your own code here, but it will be better performing over the long run.What is the best performance solution?It's not a good performing solution due to the round trip performed for every connection. Instead, try my second proposed solution will be the best performing and write an event handler whenever you receive a timeout errror. The event handler can try to pick up a new connection from the pool until it finds one that doesn't timeout. I dont post here other xml files here, since they are ok. The database server in a separate machine and its ip can be seen in above xml file is not a real one(but in actual code, everything is ok apart from this exception).If you have that table, check which database and schema it is in. If u not put 'databaseName' in your connection url data is saved inside 'master' database in sql server. U cannot find this. master database inside the sql server, but it is there.I solved the problem and thought that its better to post it here. If u not put 'databaseName' in your connection url data is saved inside 'master' database in sql server. U cannot find this. master database inside the sql server, but it is there. But to be clear the error told you that 'question' did not exist. It did not exist in the database that it was connecting to. In your case that was because you were connecting to the wrong database. But that doesn't change the meaning of the error and other people might see the same error because the table doesn't exist in the correct database (and there are variations on that as well.) Here's how the problem plays out, I have a single database polling application that looks for work orders on each of our hosted clients databases.http://jun-travel.com/userfiles/ingersoll-rand-t30-model-2475-manual.xml Currently this polling application connects to 3 different databases and therefore creates 3 different connection pools. Am I shooting my self in the foot trying to use getConnection in this fashion. I'm sorry if this is vendor specific problem but I thought I would clarify the correctness of my methodology before going to the vendor. Thanks Example:Note the connection variable above is a local variable (not class variable), so its thread safe. Also, you might consider looking up connection pooling, its much much faster. Its therefore thread safe. Example:Note the connection variable above is a local variable (not class variable), so its thread safe.Correct. Also, you might consider looking up connection pooling, its much much faster.What did you think that DBCP is? On the app init the program creates a time and timer task in the following fashionTypically an application that does nothing but poll shouldn't really start another poll before the previous one finishes. And polls typically should not be running at high speed either (you don't want something polling a database 2000 times a second.). So in terms of polling itself there is little need for a connection pool. I'm sorry if this is vendor specific problem but I thought I would clarify the correctness of my methodology before going to the vendor.If the specification doesn't say that it needs to be thread safe then you can't insist that the vendor must make it so. And in fact blocking on a the call would specifically suggest that it is in fact thread safe. It is only allow one thread to access it at a time. Thus it is would be thread safe. It can block because the pool can't return a connection due to algorithmic concerns (which is something that should be adjustable via configuration.). Are you blocking on different pools, or the same pool? Their is a pool and polling thread for each client. Each thread is a timer thread and wake every minute polling.https://www.becompta.be/emploi/bose-wave-bluetooth-owner-s-manual I completely agree that you shouldn't expect a vendor to support functionality out of the spec. I just wanted to verify that what i was doing was in fact thread safe. As far as the blocking that occurs it is on different pools. Note that everything works fine for a successful login. So when a bad login occur it takes at least 2-3 minutes to catch the exception. During that time we can see in the JDBC tracing that there's multiple tries to connect, about 200. We use classes12 and Oracle 10g (RAC).And you must have yourself written something that causes multiple retries, OR you're piping those credentials to a connection pool you yourself configured to attempt to make 200 or so connections. We use classes12 because we had no needs to upgrade, like TIMESTAMP. Maybe we could try change driver. And nothing in the code loop to try that many times. Like written in the example code we made a little sample page just to test the connection. That's all. I don't have any control of the pool connection. But the people that are doing it says to me that there is no settings configured to attempt connection 200 times. Application Server - G. EJB (Korean) SQL Developer (Korean) Discoverer (Korean) Business Intelligence. JDeveloper and OC4J 11. CRM On Demand Analytic. Logistics BPA Suite (Korean)(Arc. Advanced Compression LCM: Oracle iSetup Technology - LCM: Orac. WebLogic Server - EJB ACE Director - Applica. SQL Developer Data Mod. ????? Primavera Risk Analysi. BEA WebLogic Portal (C. BEA WebLogic RFID (Chi. ????? J2ME Development (Chin. ?? User Group ?? User Group LCM: Oracle Applicatio. Primavera P3 User Comm. Exadata Primavera EVM User Com. AIA 3.0 Early Adopters. Nov 07, 2006 at 07:40 PM I had a different Data Type structure than I was suppose to have. I changed the data type and it ran Thanks for all your help. If you want the poster to clarify the question or provide more information, please leave a comment instead, requesting additional details.https://www.acnovate.com/images/canon-powershot-sx1-is-manual-download.pdf When answering, please include specifics, such as step-by-step instructions, context for the solution, and links to useful resources. Also, please make sure that you answer complies with our Rules of Engagement.Share a link to thisUp to 10 attachments (including images) can be used with a maximum of 1.0 MB each and 10.5 MB total. Should it be some conf file in JDBC driver folder somewhere. Or can I do it from sql management studio? Also is there some easy way to determine if and what version of JDBC driver I have? Where's your code? What is your JBDC connection string. What are you doing when you get that message. So many additional details that could be important to know here Here you also specify the connection parameters via the JDBC URL. Please be sure to answer the question. Provide details and share your research. Making statements based on opinion; back them up with references or personal experience. To learn more, see our tips on writing great answers. Browse other questions tagged java sql-server jdbc or ask your own question. I am able to make connection using the SQL Server 2000 but can not do any thing I am getting error I try to serach for error but I could find other way around I have installed and configured almost all the versions weBmethods came out with but I just cant figure this out. This tool uses JavaScript and much of it will not work correctly without it enabled. Please turn JavaScript back on and reload this page. Please type your message and try again. What's going on? Do anybody know how to fix this problem. Maybe it is something with data source configuration. Thanks for your help. Marcin. We've run this app before with no problems, yet now all of a sudden we need to customize the URL string of the driver connection. Can anyone explain what this means exactly and why this might have become a problem now but was not before. Most appreciated, Carb Simien, MCSE MCDBA MCAD Microsoft Developer Support - Web Data Please reply only to the newsgroups. Are you secure? For information about the Strategic Technology Protection Program and to order your FREE Security Tool Kit, please visit. Oracle Data Integrator - Version 3.2.03.01 and later Information in this document applies to any platform. Goal Click to get started! For more information about Oracle (NYSE:ORCL), visit oracle.com. For information on this parameter, see Authentication Context. For information on this parameter, see Third-Party JDBC Driver Class Name. It is not compatible across major or minor versions of DB2, including FixPacks. For this reason, we recommend that you use the file installed on the database server. The symptom of a version mismatch is connectivity-related failures such as CLI0601E Invalid statement handle or statement is closed. To remedy the problem, overwrite the db2java.zip file on the Identity Manager or Remote Loader server with the version installed on the database server. Diagnosing them can be time consuming and frustrating. A log file ( db2diag.log on the database server) can often provide additional debugging information. In addition, all error codes are documented and available online. However, it doesn’t work with database version 7. Database server and driver updates are infrequent. Do not explicitly override these settings. Unlike other third-party implementations, the SQL Server 2000 driver can have only one java.sql.Statement object active at a time on a given connection. This error can occur only if the driver compatibility parameter Reuse Statements.As a best practice, never explicitly set this parameter. Instead, defer to the dynamic default value. For additional information on this issue, consult the following support article: To compensate, the JDBC driver mapped that non-standard type to the standard type java.sql.Types.BINARY because it best mirrored the native database type, which is a 16-byte value. This mapping results in a Base64-encoded association value. This change effectively breaks backward compatibility. If you must upgrade, remove all invalidated associations and reassociate all previously associated objects. Database server and driver updates are infrequent. However, it doesn’t work with database version 7. Database server and driver updates are infrequent. The Microsoft SQL Server JDBC Driver version 2.0 can connect to SQL Server 2008 but does not fully support the new data types or other features that are new in SQL Server 2008. For more information, visit Do not explicitly override these settings. Unlike other third-party implementations, the SQL Server 2000 driver can have only one java.sql.Statement object active at a time on a given connection. This error can occur only if the driver compatibility parameter Reuse Statements.As a best practice, never explicitly set this parameter. This mapping results in a Base64-encoded association value. This change effectively breaks backward compatibility. If you must upgrade, remove all invalidated associations and reassociate all previously associated objects. However, it doesn’t work with database version 7. Database server and driver updates are infrequent. This mapping results in a Base64-encoded association value. This change effectively breaks backward compatibility. If you must upgrade, remove all invalidated associations and reassociate all previously associated objects. Is it the same as a plugin? I was surprisedWe use integer IDs that look likeCan I configure this somehow? Some plugins are We use integer IDsSquirrel is currently showing the ID asScroll down toYou can achieve this easily with theIt forms a sentence that should readFurthermore,The following table provides aEither update to theTo stop it from occuring enable theIn general, it'sSo the warning message is there to letUpgrade your JDBC driver ifTo disable it goThis document badly needs a lot of workYou can also look at the existing plugins toPassing the -classic flag to the javaFor xml-xerces this. The SQL Server JDBC Driver I used is: Microsoft SQL Server 2000 Driver for JDBC Service Pack 2 How to solove this issue. Is it because of JDBC Driver or sql server 2008? After get latest JDBC driver, the problem is fixed. After get latest JDBC driver, the problem is fixed. Le scriptage semble etre desactive ou n'est pas pris en charge pour votre navigateur. Activez l'utilisation de JavaScript et essayez a nouveau. When you sign in to comment, IBM will provide your email, first name and last name to DISQUS. That information, along with your comments, will be governed by By commenting, you are accepting the. If that changes, happy hunting. Using true does not make any difference to the old db actions. If you do not do this you will get an exception saying something like: When i get round to it i'll give it a go from cocoon Evaluate Confluence today. May be I am missing something. Can some one tell me what is causing this error. I know one thing for sure that there is nothing wrong in the code. It has to do with the configuration of the database. Thanx in advance. Zeeshan Joe Quote: I tried the jTDS driver, and it doesn't have this limitation. Quote: Direct mode gives better performance in simple tests. Cursor is much slower, but by then, most deals have been already made. The issue is that in direct mode, all query returns go out on the wire at once and must be absorbed by the client end before any results of a subsequent query (such as from a second statement) can be retrieved. However, it is not hard for the driver to buffer up all DBMS returns to obtain random access to anything the DBMS has sent. Our own MS SQLServer driver does this. The driver authors made some interesting decisions, including using multiple connections under the covers for a single logical connection. This all goes haywire as soon as the application wants to do a multi-statement transaction. They just didn't know to consult me first;-) Joe Weinstein at BEA Quote: Joe Quote. Protocol Version To specify multipleThe effect is theA warning is generatedTo disable autocommit mode forSTART TRANSACTION isThe RELEASE clauseIncluding theThat is, the atomicityIf a transaction. I have created the report via ireport and moved it to the server via the plugin. The main report and the subreport both accessing data from SQL Server. Does anyone know a solution to this problem. Thanks, Clem As I was trying to access SQL Server 2005 I also realized that I need the 2005 driver because the 2000 driver is not compatible with the 2005 server. It's working now:-). Post your questions or your stories here!Feature discussions, development details, and Liferay's Community forum can be found here.Also included are setup issues and troubleshooting.The Liferay IDE is the official set of Eclipse plugins for Liferay Portal development from the Liferay team. Common DBMS problems 34.1. Oracle 34.2. MySQL 34.3. Microsoft SQL Server 34.4. IBM DB2 34.5. Amazon Redshift 34.6. PostgreSQL 34.7. Sybase SQL Anywhere 34.1. Oracle 34.1.1. No Views or tables visible in the DbExplorer This is caused by a bug in older Oracle JDBC drivers.The backslash in the expression is the characterIf you experience problems when updatingThe version of your driverNow close the dialog by clicking on the OK button.If you are not seeingSELECT 42 FROM dual; When adding a space after the two dashes the statement works: -- This is a comment. SELECT 42 FROM dual; Currently only the version 5.1.30 is known to return the list of tablesThis problem was fixed with the MySQL JDBCThis behavior can be controlled by adding an extended property The property should be named zeroDateTimeBehavior. You canFor detailsIf you see wrong values for DATE columnsTo retrieve table and column remarks that are defined throughAs these statementsIt does not work with the jTDS driver.If you are running a 32bit Java Runtime you have to useApparently the driver cannot handle showing the execution plan andEspecially when using DDL statements, this can lead toThis affects e.g. the display of the tablesIf that is done, callsThe jTDS driver does not support such a property. If you are usingThere are three ways to fix this problem:This means that when retrievingFor the jTDS driver appendApparently the DB2 JDBC driver needs this library inTo customize the retrieval for those columns, pleaseThis means that when retrievingA recommended value is e.g. 10, it might beThe number defined for the fetch size,The data type is not reported properly by the driver,Options dialog. Steps to Reproduce the Behavior Use the following code to reproduce the error: NOTE: See the comments in the code for information on the code changes that are required to resolve the problem. I have already updated my jdbc driver - tested all versions. Here is my connection string. Thanks.Direct mode is the default mode for the driver. Resolution is:Which database connection will be established when I call the getConnection() method?As the JDBC URL contains distinct prefixes for each DBMS systems, there is no ambiguity here. An URL starting with jdbc:oracle: will be handled by the Oracle driver, an URL starting with jdbc:mysql: will be handled by the MySQL driver, jdbc:postgresql will be handled by the Postgres driver. Different drivers for the same DBMS usually use different URL syntax, so they can be distinguished as well. E.g. the Microsoft JDBC driver uses jdbc:sqlserver: whereas the jTDS driver uses jdbc:jtds:sqlserver:It depends on which one is referenced on the URL connection that you are using where you are getting the connection.One of our customers reported that our application server freezes (indefinitly) at 0 CPU when he accidentally tried to connect to a Microsoft SQL Server with a MySQL JDBC URL. The following Java snippet illustrates the situation. DriverManager.setLogWriter(new PrintWriter(System.err)). DriverManager.setLoginTimeout(5). To run the snippet:Questions:A google search revealed nothing in this regard.I don't want my server to freeze when the user accidentally inserts an invalid JDBC URL. I tried several other JDBC drivers (MySQL, DB2, Oracle.) and they all handle this issue gracefully, only the MariaDB JDBC driver freezes the JVM. Using this approach you can define the main components of your software configuration without affecting the production environment. The planner environment uses a planner pathcode, which is shipped with the software, and a set of OCM mappings, which point to a planner database. All pathcodes share a complete set of runtime central objects on the Deployment Server. The software stores these objects on the Deployment Server in the planner directory. The planner pathcode contains the only complete set of runtime central objects on the Deployment Server, which are shared by all pathcodes. A package indicates the necessary objects for a Development Client, a point-in-time snapshot of the central objects on the Deployment Server, and where the installation program finds them. The pristine environment is also used to run Table Conversion processes during an upgrade. This environment is required to compare modified objects to pristine objects. When encountering a software problem that JD Edwards EnterpriseOne Global Support cannot duplicate, they will ask you to sign on to the pristine environment to duplicate the problem. Routinely, either monthly or quarterly, refresh the data for this environment from the JDEPLAN environment on the Deployment Server. The deployment environment uses the planner pathcode and has OCM mappings to the production environment system tables and local data. Only one deployment environment is required because all environments created by the installation process share common data sources. The OCM mappings and data source information are supplied by the planner database. Log on to this environment to modify and test objects before transferring them to the prototype environment (PY920) pathcode. After transferring the objects into PY920, build and install a full or partial prototype package (for example, PY920FA or PY920PA), and then log on to the prototype environment for additional testing. The Development environment is delivered with JD Edwards EnterpriseOne Demonstration data. Constants tables and master tables, such as company constants, fiscal date patterns, and item master are populated with production data during the prototype process. Copy the tables to the production environment before going live. Batch applications can run on the Enterprise Server. There are two methods to install languages:The Language installation image is required to implement this functionality. If you install additional languages, you will perform the procedures after you have executed the initial installation described in this guide.The language installation process automatically copies the text from a language database to the production Release 9.2 database and merges the alternate language text with the original English base. These automated processes are described throughout this guide. When installing language for the first time, a language-only plan may be chosen after completing the initial plan. The software specifies the language preference for forms and reports. For example, users who share the same environment may want to view the same text in multiple languages, such as French, Spanish, and English. All language text is stored in a central location and deployed to the individual Development Client. The package build process enables the building of packages for multiple languages. Multiple languages can be installed using the processes outlined in this guide. Language text is accessed by the language preference code settings in the user profile associated with the alternate language installed. The base release contains English and must be installed before creating custom modifications to include changes or additions to the translated text. All control files must also have an English record prior to adding an alternate language text record. The data is loaded to the Deployment Server during the installation and copied to the Central Objects and the other data sources through the language installation process. Single-byte languages run on single-byte or double-byte operating systems, but double-byte languages must run on double-byte operating systems. The Language Preference Code field, located in the Release 9.2 user profile, determines which language is displayed on forms or reports. All users are assigned a language preference code within the user profile. Alternate language records always have a value in the language preference code. The tables contain several records for each item, such as a user defined code value as well as possible multiple records for a code value, with each code representing a different language. This information is not translated in the JD Edwards EnterpriseOne demonstration data. Refer to the individual applications to set up and use multiple languages. Each character within the database is identified by a specific language preference code value. A collection of characters within a defined database is called a character set or code page. A character set or code page setting is a scheme for encoding character data. Every character is defined by a unique hexadecimal value. These values can change between databases and languages. Every language is represented by at least one character set. Some character sets may contain multiple languages. Asian character sets are specific to one language. A code page conversion adjusts the hexadecimal values of different characters so that the appearance of text on the desktop is the same with different code pages. For installs, all data sources default to Unicode. The Unicode flag only indicates what column type is used to store character data in a Unicode database. The correct code page should be set when the database is created. Verify that the Deployment Server code page is set correctly prior to upgrade. By using NLS standards, JD Edwards EnterpriseOne maintains consistent data within all databases and hardware platforms. The same database can store alternate language text, relying on NLS standards to manage the text storage and retrieval. JD Edwards EnterpriseOne uses NLS, on all supported platforms, to interact with any computer system (hardware and software) within your own environment. The double-byte languages support specific individual national code pages by language. Conversely, the double-byte character sets use ideographic characters and require two bytes to create a single character. For example, a double-byte SQL Server or Oracle database is required for Chinese and Japanese languages. However, when using a double-byte language, this process may not necessarily use an understandable collating sequence, although it can still use QBE for any double-byte column. Some languages (such as double-byte) require special fonts to display and print correctly. The software stores the font settings in files according to language. Individual users can choose fonts by language for forms, grids, and reports. The software uses these preferences to determine how menus and forms are presented to individual users and where language is to be used in Release 9.2 for that user. After user display preferences are set up for a given user, the values remain the same on any Development Client that the user accesses. Refer to the JD Edwards EnterpriseOne Tools Runtime Administration Guide for information about modifying user profiles. Legal Notices. Is it easy to learn. Are there any prerequisites? I'm not acquainted with that version (did very few interface jobs and they were all complicated due to DB2's differences from my usual flavours of databases - Oracle or SQL Server). I started developing for this version in 2000 and kept active until 2006.