BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Update table structure          BorlandTalk.com Forum Index -> Delphi Databases (Desktop) View previous topic :: View next topic   Author Message Man Utd Guest Posted: Fri Sep 23, 2005 12:28 am    Post subject: Update table structure We have application running on several customer's machines. However, due to enhancements we need to modify the database structure, as we found a problem is the database we are using does not support ALTER TABLE ADD COLUMN statement. So this is a serious problem as we cannot update client's database except replace their database with the blank one. Old Employee table: FieldA FieldB New Employee table: FieldA FieldB FieldC One option I am thinking is: 1) Create a new table called Employee_New with these 3 fields 2) Copy the Employee table into Employee_New 3) Drop the Employee table 4) Rename the Employee_New to Employee What alternative will be? Back to top Alfred ten Hoeve Guest Posted: Fri Sep 23, 2005 1:06 am    Post subject: Re: Update table structure If you tell us what data-accesscomponents and database you use, we probably can help you. Alfred. "Man Utd" <alanpltseNOSPAM (AT) yahoo (DOT) com.au> schreef in bericht news:43334bd0$1 (AT) newsgroups (DOT) borland.com... Quote: We have application running on several customer's machines. However, due to enhancements we need to modify the database structure, as we found a problem is the database we are using does not support ALTER TABLE ADD COLUMN statement. So this is a serious problem as we cannot update client's database except replace their database with the blank one. Old Employee table: FieldA FieldB New Employee table: FieldA FieldB FieldC One option I am thinking is: 1) Create a new table called Employee_New with these 3 fields 2) Copy the Employee table into Employee_New 3) Drop the Employee table 4) Rename the Employee_New to Employee What alternative will be? Back to top Jan Ferguson Guest Posted: Fri Sep 23, 2005 1:14 am    Post subject: Re: Update table structure Man Utd wrote: Quote: We have application running on several customer's machines. However, due to enhancements we need to modify the database structure, as we found a problem is the database we are using does not support ALTER TABLE ADD COLUMN statement. So this is a serious problem as we cannot update client's database except replace their database with the blank one. Old Employee table: FieldA FieldB New Employee table: FieldA FieldB FieldC One option I am thinking is: 1) Create a new table called Employee_New with these 3 fields 2) Copy the Employee table into Employee_New 3) Drop the Employee table 4) Rename the Employee_New to Employee What alternative will be? There might be other options but you fail to state which database you are currently using. -- Regards, Jan Ferguson Back to top Man Utd Guest Posted: Sun Sep 25, 2005 10:38 am    Post subject: Re: Update table structure We are using TEasyTable from AidAim. "Jan Ferguson" <jbfergusonATdatasoftwareDOTnet> wrote Quote: Man Utd wrote: We have application running on several customer's machines. However, due to enhancements we need to modify the database structure, as we found a problem is the database we are using does not support ALTER TABLE ADD COLUMN statement. So this is a serious problem as we cannot update client's database except replace their database with the blank one. Old Employee table: FieldA FieldB New Employee table: FieldA FieldB FieldC One option I am thinking is: 1) Create a new table called Employee_New with these 3 fields 2) Copy the Employee table into Employee_New 3) Drop the Employee table 4) Rename the Employee_New to Employee What alternative will be? There might be other options but you fail to state which database you are currently using. -- Regards, Jan Ferguson Back to top Jan Ferguson Guest Posted: Sun Sep 25, 2005 11:32 am    Post subject: Re: Update table structure Man Utd wrote: Quote: We are using TEasyTable from AidAim. "Jan Ferguson" <jbfergusonATdatasoftwareDOTnet> wrote in message news:433356f4$1 (AT) newsgroups (DOT) borland.com... Man Utd wrote: We have application running on several customer's machines. However, due to enhancements we need to modify the database structure, as we found a problem is the database we are using does not support ALTER TABLE ADD COLUMN statement. So this is a serious problem as we cannot update client's database except replace their database with the blank one. Old Employee table: FieldA FieldB New Employee table: FieldA FieldB FieldC One option I am thinking is: 1) Create a new table called Employee_New with these 3 fields 2) Copy the Employee table into Employee_New 3) Drop the Employee table 4) Rename the Employee_New to Employee What alternative will be? There might be other options but you fail to state which database you are currently using. -- Regards, Jan Ferguson In re-reading your post I noted that your update is very similar to a question I had. Sorry but I don't know much about TEasyTable. You might want to note what Bill and others told me with regard to my issue. Does EasyTable have a database manager utility where you can go on site and make an update? -- Regards, Jan Ferguson Back to top Man Utd Guest Posted: Sun Sep 25, 2005 12:51 pm    Post subject: Re: Update table structure Yes, it provides a database manager utility to create tables. Also allows SQL execution. I tried the alter table statement but got error. I am afraid we will get into trouble if it does not support alter table statement, it is because as time goes by, more enhancements will be added and to some points database structure is really need to be modified. "Jan Ferguson" <jbfergusonATdatasoftwareDOTnet> wrote Quote: Man Utd wrote: We are using TEasyTable from AidAim. "Jan Ferguson" <jbfergusonATdatasoftwareDOTnet> wrote in message news:433356f4$1 (AT) newsgroups (DOT) borland.com... Man Utd wrote: We have application running on several customer's machines. However, due to enhancements we need to modify the database structure, as we found a problem is the database we are using does not support ALTER TABLE ADD COLUMN statement. So this is a serious problem as we cannot update client's database except replace their database with the blank one. Old Employee table: FieldA FieldB New Employee table: FieldA FieldB FieldC One option I am thinking is: 1) Create a new table called Employee_New with these 3 fields 2) Copy the Employee table into Employee_New 3) Drop the Employee table 4) Rename the Employee_New to Employee What alternative will be? There might be other options but you fail to state which database you are currently using. -- Regards, Jan Ferguson In re-reading your post I noted that your update is very similar to a question I had. Sorry but I don't know much about TEasyTable. You might want to note what Bill and others told me with regard to my issue. Does EasyTable have a database manager utility where you can go on site and make an update? -- Regards, Jan Ferguson Back to top Jan Ferguson Guest Posted: Sun Sep 25, 2005 1:37 pm    Post subject: Re: Update table structure Man Utd wrote: Quote: Yes, it provides a database manager utility to create tables. Too bad it doesn't allow you to alter tables as well. -- Regards, Jan Ferguson 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 (Desktop) 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.