Brainstorming: Ideas For Categories Database Structure Please

Jul 20, 2005

Hi

Thanks in advance for any ideas.

What I'm trying to do, is have a category system like Yahoo or these
newsgroups where you have a parent "COMP" and multiple children "LANG"
or "DATABASES". However, these can also have children. So for
"DATABASES", you have "MS-SQLSERVER" "ACCESS" "ORACLE8" etc

My question is, what is the best way to store these in a database and
also allow me to retrieve the data

I'm not sure how to procede

Thanks

Sam

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Ideas Needed For This Problem (table Structure)

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Hi,
  In my database i have some tables and some are Client, ClientUser, Plan and Platform. We have different products that we offer..
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ClientId  ClientName Contact Platform, Address
 1       abc       johnDoe, 1 anywhere street
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Client User.
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 1        1       doe            John        abc    XXXX   True
 2        1       abc           kjd          ldkf     XXXX   True
3          2       dfdkjf           jdkfjdl   kdll     XXXX true
 
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1           1         1        abc plan name
2           1          2        abc planname
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any ideas are appreciated..
Regards,
Karen
 

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<%@ Page Language="VB" MasterPageFile="~/Master02.master" Title="Create Your Free Account" Debug="true"%><%@ Import Namespace="System.Data.SqlClient" %><%@ Import Namespace="System.Web.Configuration" %>
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 Server Error in '/Site_Dev' Application.--------------------------------------------------------------------------------
An attempt to attach an auto-named database for file ~App_DataASPNETDB.MDF failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: An attempt to attach an auto-named database for file ~App_DataASPNETDB.MDF failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
Source Error:
Line 47:         cmd.Parameters.AddWithValue("@UserID", UserName)Line 48:         Using conLine 49:             con.Open()Line 50:             cmd.ExecuteNonQuery()Line 51:         End Using 
Source File: C:UsersmdcraggDocumentsWebsiteSite_DevUser_Create.aspx    Line: 49
Stack Trace:
[SqlException (0x80131904): An attempt to attach an auto-named database for file ~App_DataASPNETDB.MDF failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.]   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +736211   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188   System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1959   System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +33   System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +237   System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +374   System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +192   System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170   System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +359   System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28   System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424   System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105   System.Data.SqlClient.SqlConnection.Open() +111   ASP.user_create_aspx.CreateUserProfile(String UserName) in C:UsersMatthewDocumentsGroup 02 - PoliticoreSite_DevUser_Create.aspx:49   ASP.user_create_aspx.CreateUserWizard_CreatedUser(Object sender, EventArgs e) in C:UsersMatthewDocumentsGroup 02 - PoliticoreSite_DevUser_Create.aspx:30   System.Web.UI.WebControls.CreateUserWizard.OnCreatedUser(EventArgs e) +105   System.Web.UI.WebControls.CreateUserWizard.AttemptCreateUser() +341   System.Web.UI.WebControls.CreateUserWizard.OnNextButtonClick(WizardNavigationEventArgs e) +105   System.Web.UI.WebControls.Wizard.OnBubbleEvent(Object source, EventArgs e) +453   System.Web.UI.WebControls.CreateUserWizard.OnBubbleEvent(Object source, EventArgs e) +149   System.Web.UI.WebControls.WizardChildTable.OnBubbleEvent(Object source, EventArgs args) +17   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35   System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +115   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +163   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102
 
--------------------------------------------------------------------------------Version Information: Microsoft .NET Framework Version:2.0.50727.312; ASP.NET Version:2.0.50727.312

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