BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  How get attachment ID          BorlandTalk.com Forum Index -> Delphi Databases (InterBase Express) View previous topic :: View next topic   Author Message maxi Guest Posted: Mon May 07, 2007 10:22 pm    Post subject: How get attachment ID Hi, How can get the attachemnt ID using IBX 6.08 against Interbase 7.5 ? I'am using a datasnap server and I want match client datasnap connection with datasnap server (interbase) connection. Thanks in advance. M.   --- posted by geoForum on http://delphi.newswhat.com Back to top Craig Stuntz [TeamB] Guest Posted: Mon May 07, 2007 10:24 pm    Post subject: Re: How get attachment ID maxi wrote: Quote: How can get the attachemnt ID using IBX 6.08 against Interbase 7.5 ? Get the transaction ID. IBX has a property for this, although I'm not sure if it was in 6.08 or was added later. JOIN TMP$TRANSACTIONS against TMP$ATTACHMENTS to get the attachment ID. That said, what you're attempting to do doesn't sound like a great design. It would be better to use a session ID, IMHO. -- Craig Stuntz [TeamB] · Vertex Systems Corp. · Columbus, OH Delphi/InterBase Weblog : http://blogs.teamb.com/craigstuntz Please read and follow Borland's rules for the user of their server: http://support.borland.com/entry.jspa?externalID=293 Back to top Craig Stuntz [TeamB] Guest Posted: Mon May 07, 2007 11:45 pm    Post subject: Re: How get attachment ID You should not care which attachment each request uses if your app server is stateless. Session state should be stored in the database so that any attachment can access it. Try this: 1) When a new user connects, generate a session ID. 2) When you need data which is specific to that session, write a stored procedure which accepts a session ID and returns session-specific data. Now you can get the right data from /any/ attachment. If you need the same attachment for every request from a certain client, then your app server is stateful and you could have scalability problems. Puedes escribir tus preguntas en español si prefieres. -- Craig Stuntz [TeamB] · Vertex Systems Corp. · Columbus, OH Delphi/InterBase Weblog : http://blogs.teamb.com/craigstuntz Useful articles about InterBase development: http://blogs.teamb.com/craigstuntz/category/21.aspx Back to top maxi Guest Posted: Tue May 08, 2007 12:07 am    Post subject: Re: How get attachment ID Hi Craig, thans for you reply I will try to explain this, When a datasnap server is connected to Database, this use the same user all time. Is the same user ever but distinct attachment ID (the datasnap server is apartment-multithread). If I query to Interbase monitor with, for intance, this sql statement: select TMP$ATTACHMENT_ID as "Attachment ID", TMP$DATABASE_ID as "Database ID", TMP$USER as "User Name", TMP$USER_IP_ADDR as "User IP", TMP$USER_HOST as "User Host", from TMP$ATTACHMENTS I get ever the same user name but distinct Attachment ID of course. Then, when a datasnap client is connected to server, he get a session ID but i need know which attachment ID is matching. Maybe I've a design concept problem or maybe my english is very bad and I'dont be clear. Thank for you help. Quote: Craig Stuntz wrote: ..... That said, what you're attempting to do doesn't sound like a great design. It would be better to use a session ID, IMHO. --- posted by geoForum on http://delphi.newswhat.com Back to top Craig Stuntz [TeamB] Guest Posted: Tue May 08, 2007 12:40 am    Post subject: Re: How get attachment ID OK, if the only reason you want to know the attachment ID is so that you can find it in the monitor, that's fine. My first reply shows you how: Get the transaction ID and then derive the attachment ID from that: SELECT TMP$ATTACHMENT_ID FROM TMP$TRANSACTIONS WHERE TMP$TRANSACTION_ID = 1234; -- Craig Stuntz [TeamB] · Vertex Systems Corp. · Columbus, OH Delphi/InterBase Weblog : http://blogs.teamb.com/craigstuntz Useful articles about InterBase development: http://blogs.teamb.com/craigstuntz/category/21.aspx Back to top maxi Guest Posted: Tue May 08, 2007 1:13 am    Post subject: Re: How get attachment ID Bien, vamos de nuevo entonces... :) El problema es el siguiente, el servidor datasnap es stateless no gaurda información entra cada llamada. Se envia la información al servidor y si es necesario vuelve al cliente donde se almacenará si correspondiese. El servidor tiene modo de instanciación csMultiInstancing y ThreadingModel tmApartment lo que hace que cada cliente genere una nueva instancia y por lo tanto una nueva conexión cada que se conecta y además la conexión a Interbase (TIBDatabase) usa siempre el mismo user_name. Ahora lo que yo quiero lograr (si es posible) es al visualizar el monitor de Interbase (tabla TMP$ATTACHMENT) saber a que cliente datasnap corresponde dicha conexión, dado que siempre es la misma dirección IP (la del servidor datasnap que es el verdadero cliente de Interbase). Si llegase a haber una conexión "colgada" saber que cliente datasnap, que terminal, lo provocó. No sé si quedó más claro ahora. Igualmente muchas gracias por tu tiempo. Regards. --- posted by geoForum on http://delphi.newswhat.com Back to top maxi Guest Posted: Tue May 08, 2007 6:34 am    Post subject: Re: How get attachment ID Ok, I will try this. One question more, how can get the transaction ID? I use IBX 6.08 with Delphi 6.02 Enterprise, is possible with this version? Craig Stuntz [TeamB] escribió: Quote: OK, if the only reason you want to know the attachment ID is so that you can find it in the monitor, that's fine. My first reply shows you how: Get the transaction ID and then derive the attachment ID from that: SELECT TMP$ATTACHMENT_ID FROM TMP$TRANSACTIONS WHERE TMP$TRANSACTION_ID = 1234; Back to top Wayne Niddery [TeamB] Guest Posted: Tue May 08, 2007 6:59 am    Post subject: Re: How get attachment ID maxi wrote: Quote: One question more, how can get the transaction ID? I use IBX 6.08 with Delphi 6.02 Enterprise, is possible with this version? Not possible with version 6.x of InterBase, TMP$ATTACHMENTS and other such tables were only added in InterBase 7.0. -- Wayne Niddery - Winwright, Inc (www.winwright.ca) "It is error alone which needs the support of government. Truth can stand by itself." - Thomas Jefferson Back to top maxi Guest Posted: Tue May 08, 2007 4:41 pm    Post subject: Re: How get attachment ID Sorry, may be I don't be clear. I use IBX 6.08 version for Delphi 6.02 but against Interbase 7.5 Wayne Niddery [TeamB] escribió: Quote: maxi wrote: One question more, how can get the transaction ID? I use IBX 6.08 with Delphi 6.02 Enterprise, is possible with this version? Not possible with version 6.x of InterBase, TMP$ATTACHMENTS and other such tables were only added in InterBase 7.0. Back to top Craig Stuntz [TeamB] Guest Posted: Tue May 08, 2007 5:34 pm    Post subject: Re: How get attachment ID maxi wrote: Quote: One question more, how can get the transaction ID? In the current version of IBX, it's TIBTransaction.TransactionID. I don't remember if this property exists in 6.08 or not. -- Craig Stuntz [TeamB] · Vertex Systems Corp. · Columbus, OH Delphi/InterBase Weblog : http://blogs.teamb.com/craigstuntz IB 6 versions prior to 6.0.1.6 are pre-release and may corrupt your DBs! Open Edition users, get 6.0.1.6 from http://mers.com Back to top Wayne Niddery [TeamB] Guest Posted: Tue May 08, 2007 7:10 pm    Post subject: Re: How get attachment ID maxi wrote: Quote: Sorry, may be I don't be clear. I use IBX 6.08 version for Delphi 6.02 but against Interbase 7.5 Sorry, I misread "6.02" and thought of IB 6.02 intead of Delpih. -- Wayne Niddery - Winwright, Inc (www.winwright.ca) "In a tornado, even turkeys can fly." - unknown Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Databases (InterBase Express) All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.