Get Number Of Replies In Blog System

Jun 24, 2008

Hi,

I have a simple blog with a posts and replies table.

on the posts summary page i want to count the number of replies related to each post.

I thought i could store all the posts in a table variable and then loop through the table variable to count the number of replies that relate to the current post.

It doesnt seem as easy as i expected and i think i am making it more complicated for myself.

Can someone point me in the right direction please ?

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I've broken down and started one of these things: http://blogs.msdn.com/ryan.stonecipher/default.aspx . Watch that space for "good to know about DBCC" stuff.

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----------------------
Ryan Stonecipher
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(Legalese: This posting is provided "AS IS" with no warranties, and confers no rights.)

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Code:


create table Channels (ChannelID int(5), other varchar(255));

create table Blogs (BlogID int(5), BlogXMLPath varchar(255));

create table BlogAssociations (BlogID int(5), ShowID int(5), ChannelID int (5));

create table Episodes (EpisodeID int(6), BlogID int(5), ShowID int(5), ChannelID int(5), Other varchar(30));

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insert into Channels values (2, 'Channel 2');
insert into Channels values (3, 'Channel 3');
insert into Channels values (4, 'Channel 4');

insert into Blogs values ('1', 'blah');
insert into Blogs values ('3', 'blah');
insert into Blogs values ('4', 'blah');
insert into Blogs values ('12', 'blah');
insert into Blogs values ('34', 'blah');
insert into Blogs values ('35', 'blah');
insert into Blogs values ('67', 'blah');

insert into Episodes values (1, 3, '', '', 'Episode 1, blog 3');
insert into Episodes values (2, 3, '', '', 'Episode 2, blog 3');
insert into Episodes values (3, 3, '', '', 'Episode 3, blog 3');
insert into Episodes values (4, 3, '', '', 'Episode 4, blog 3');
insert into Episodes values (5, 1, '', '', 'Episode 5, blog 1');
insert into Episodes values (6, 1, '', '', 'Episode 6, blog 1');
insert into Episodes values (7, 1, '', '', 'Episode 7, blog 1');
insert into Episodes values (8, 4, '', '', 'Episode 8, blog 4');
insert into Episodes values (9, 4, '', '', 'Episode 9, blog 4');
insert into Episodes values (10, 4, '', '', 'Episode 10, blog 4');
insert into Episodes values (11, 4, '', '', 'Episode 11, blog 4');
insert into Episodes values (12, 4, '', '', 'Episode 12, blog 4');
insert into Episodes values (13, 12, '', '', 'Episode 13, blog 12');
insert into Episodes values (14, 12, '', '', 'Episode 14, blog 12');
insert into Episodes values (15, 12, '', '', 'Episode 15, blog 12');
insert into Episodes values (16, 12, '', '', 'Episode 16, blog 12');
insert into Episodes values (17, 12, '', '', 'Episode 17, blog 12');
insert into Episodes values (18, 34, '', '', 'Episode 18, blog 34');
insert into Episodes values (19, 34, '', '', 'Episode 19, blog 34');
insert into Episodes values (20, 34, '', '', 'Episode 20, blog 34');
insert into Episodes values (21, 34, '', '', 'Episode 21, blog 34');
insert into Episodes values (22, 35, '', '', 'Episode 22, blog 35');
insert into Episodes values (23, 35, '', '', 'Episode 23, blog 35');
insert into Episodes values (24, 35, '', '', 'Episode 24, blog 35');
insert into Episodes values (25, 35, '', '', 'Episode 25, blog 35');
insert into Episodes values (26, 67, '', '', 'Episode 26, blog 67');
insert into Episodes values (27, 67, '', '', 'Episode 27, blog 67');
insert into Episodes values (28, 67, '', '', 'Episode 28, blog 67');
insert into Episodes values (29, 67, '', '', 'Episode 29, blog 67');
insert into Episodes values (30, 67, '', '', 'Episode 30, blog 67');

insert into BlogAssociations values (3,'',1);
insert into BlogAssociations values (12,'',1);



There is my above sql script, i'm currently using mysql at home to test things but will convert to work in mssql.
I need to get associated BlogID for Certain ChannelID from the BlogAssociations table.
Then using those BlogID's that it finds for let just say ChannelID "1" list off the 3 most recent EpisodeID's from the Episodes Table per each BlogID.
So if ChannelID "1" has four BlogID's associated with it then in the Episodes table list off the recent 3 EpisodeIDs for BlogID "3", then the 3 most recent EpisodeIDs for BlogID "5" and so on and so on.

I have this which kind of does what I want:

Code:


select
e.BlogID, e.EpisodeID, e.other
FROM
episodes e, BlogAssociations ba
WHERE
e.BlogID = ba.BlogID and ba.ChannelID = '1'
ORDER BY
e.EpisodeID DESC;



It returns:

Code:


+--------+-----------+---------------------+
| BlogID | EpisodeID | other |
+--------+-----------+---------------------+
| 12 | 17 | Episode 17, blog 12 |
| 12 | 16 | Episode 16, blog 12 |
| 12 | 15 | Episode 15, blog 12 |
| 12 | 14 | Episode 14, blog 12 |
| 12 | 13 | Episode 13, blog 12 |
| 3 | 4 | Episode 4, blog 3 |
| 3 | 3 | Episode 3, blog 3 |
| 3 | 2 | Episode 2, blog 3 |
| 3 | 1 | Episode 1, blog 3 |
+--------+-----------+---------------------+



But as you can see it lists off 5 of the Episodes for BlogID "12", I only want the most recent 3 as previously stated. It also lists off more than 3 Episodes for BlogID "3". How in the world do I go about doing this?
I'm making this a stored procedure so I can't use php otherwise I wouldn't even be posting

Thanks so much!

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Imports Microsoft.SqlServer.Dts.Runtime.Wrapper


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Public Overrides Sub AcquireConnections(ByVal Transaction As Object)

Dim nDTS As IDTSConnectionManager90 = Me.Connections.TablaMODELO80
sqlConnecta = CType(nDTS.AcquireConnection(Nothing), SqlConnection)

End Sub
Public Overrides Sub PreExecute()

sqlComm = New SqlCommand("INSERT INTO hac_modelo180(Ejercicio,NIFPerc,NIFReP,Nombre,CodProv,Modalidad,ImpBase,PorcReten,ImpReten,EjerDev) " & _
"VALUES(@Ejercicio,@NIFPerc,@NIFReP,@Nombre,@CodProv,@Modalidad,@ImpBase,@PorcReten,@ImpReten,@EjerDev)", sqlConnecta)
sqlParam = New SqlParameter("@Ejercicio", Data.SqlDbType.SmallInt)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@NIFPerc", Data.SqlDbType.Char)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@NIFReP", Data.SqlDbType.Char)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@Nombre", Data.SqlDbType.VarChar)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@CodProv", Data.SqlDbType.TinyInt)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@Modalidad", Data.SqlDbType.SmallInt)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@ImpBase", Data.SqlDbType.Decimal)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@PorcReten", Data.SqlDbType.Decimal)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@ImpReten", Data.SqlDbType.Decimal)
sqlComm.parameters.add(sqlParam)
sqlParam = New SqlParameter("@EjerDev", Data.SqlDbType.Decimal)
sqlComm.Parameters.Add(sqlParam)

End Sub


Public Sub New()

End Sub
Public Overrides Sub ReleaseConnections()
nDts.ReleaseConnection(sqlConnecta)
End Sub

Protected Overrides Sub Finalize()
MyBase.Finalize()
End Sub
End Class







Thanks a lot for your help


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@PARAM1 : Unable To Cast Object Of Type 'System.Data.SqlTypes.SqlInt32 To Type System.IConvertable

Apr 23, 2007

I get the following message in the vs2005 querybuilder when i do a preview:



***********************************
SQL Execution Error.

Executed SQL statement: SELECT Schoolindex, Variant, VVSchool, [index], indincl, VVRuimtes, School FROM School WHERE (Schoolindex = @PARAM1)



Error Source: SQL Server Compact Edition ADO.NET Data Provider


Error Message: @PARAM1 : Unable to cast object of type 'System.Data.SqlTypes.SqlInt32 to type System.IConvertable'.
****************************************

The same querypreview works fine without the parameter:



SELECT Schoolindex, Variant, VVSchool, [index], indincl, VVRuimtes, School FROM School WHERE (Schoolindex = 186)



Can anybody tell me why this is?
And tell me a way to get the tableadapter working?



Anne-Jan Tuinstra

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Request For The Permission Of Type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, Pu

Mar 12, 2008


I created a .net console application within which I connect to a sql server (not local) as follows,


string conn_str = "Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=QuantEquitySql;Data Source=server name";

SqlConnection conn = new SqlConnection(conn_str);

conn.Open();
.
Everything works fine when I run it from my computer. When I try to run it from a network share I get the following error,

Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

I am using Visual Studio 2005 and .Net framwork v2.0.50727.

Does anybody know a fix to this problem?

Thanks

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'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' Fail

Jun 20, 2007

I have a report that uses some embedded custom code. The embedded custom code is a function that execute some sql query on a sql server database.Everything works fine in Visual studio. The report gets deployed on the server successfully, however when running the report from report manager i get the following error message :



The Hidden expression for the table table1 contains an error: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.















Here is the code :

************************************************************************

Public function get_field() as string
Dim myConnection As System.Data.SqlClient.SqlConnection
Dim myCommand As System.Data.SqlClient.SqlCommand
Dim data_reader As System.Data.SqlClient.SqlDataReader
Dim field(100) as string
Dim i as integer
Dim j as integer
Dim sql_field as string
Dim nbr_field as integer
Dim rtn_string as string


i = 0
sql_field ="Select field from mytable"
myConnection = New System.Data.SqlClient.SqlConnection("Datasource=xxx.xxx.xxx.xxmydatabase;Initial Catalog=mydatabase;User Id=user1;Password=password1;")
myConnection.Open()
myCommand = New System.Data.SqlClient.SqlCommand(sql_field, myConnection)
data_reader = myCommand.ExecuteReader()
While data_reader.Read()
if data_reader.HasRows then
field(i)= data_reader(0).ToString()
end if
nbr_field = nbr_field + 1
i= i+1
End While
data_reader.Close()
myConnection.Close()


for j = 0 to nbr_field -1
rtn_string = rtn_string + field(j) + ","
Next j

rtn_string = left(rtn_string,rtn_string.length-1)
return rtn_string
'return sql_cmd
'return yes_no
'return lkupfield
end function

******************************************************************

Why do i get the error message ?, is this related to Code Access Security issues with .net framework. if yes

how do i set the Security so the report server or report manager allows embedded custom code to be executed. Any advice ?



Chi








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How To Acces Report Of Other System From My System.

Feb 10, 2007

Hi,
Im Designed a Webpage .It consosts of a Button, whenever i click on
Button report must generated.When the report is in my system report
generated successfully.when I try to access a report from other
system.I cudnot able to access report.Can any1 hlp me inthis aspect
.any procedure in order to access the report of other system.wht shud
be url for Reportserverurl and reportpath.In short



When i click on btn i shud get report of other system.what previleges shud be given for other system in other to access





With regards,

mahender

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A First Chance Exception Of Type 'System.Data.SqlClient.SqlException' Occurred In System.data.dll

Jan 18, 2008

Hi,
I've written this code multiple times now. But for the first time i get an error at the line underlined. My procedure runs perfectly when i execute it through Sql Query analyzer.
plzz help.. Its urgent and am unable to find the reason for this error "A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in system.data.dll"
Thanks !SqlConnection conn = new SqlConnection(DbConnectionString);
conn.Open();
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "dbo.rqryTradesPRR";
cmd.Parameters.Add("@COBDate",SqlDbType.DateTime).Value = "2002-10-31 00:00:00.000" ;
SqlDataReader reader = cmd.ExecuteReader();
while(reader.Read())
{
// have written something here

}
 Thanks in advance !
 

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Jun 19, 2008

I'm getting this error on a vb.net page the needs to execute two separate stored procedures.  The first one, is the main insert, and returns the identity value for the ClientID.  The second stored procedure inserts data, but needs to insert the ClientID returned in the first stored procedure.  What am I doing wrong with including the identity value "ClientID" in the second stored procedure? 
Unable to cast object of type 'System.String' to type 'System.Web.UI.WebControls.Parameter'. 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.InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Web.UI.WebControls.Parameter'.Source Error:




Line 14: If li.Selected Then
Line 15: InsertClientCompanyType.InsertParameters("CompanyTypeID").DefaultValue = li.Value
Line 16: InsertClientCompanyType.InsertParameters("ClientID") = ViewState("ClientID")
Line 17:
Line 18:
Source File: C:InetpubwwwrootIntranetExternalAppsNewEmploymentClientNewClient.aspx.vb    Line: 16
Here is my code behind... What am I doing wrong with grabbing the ClientID from the first stored procedure insert? 
 
Protected Sub InsertNewClient_Inserted(ByVal sender As Object, ByVal e As SqlDataSourceStatusEventArgs)ClientID.Text = e.Command.Parameters("@ClientID").Value.ToString()ViewState("ClientID") = e.Command.Parameters("@ClientID").Value.ToString()End SubProtected Sub Submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Submit.ClickInsertNewClient.Insert()For Each li As ListItem In CompanyTypeID.Items
If li.Selected ThenInsertClientCompanyType.InsertParameters("CompanyTypeID").DefaultValue = li.ValueInsertClientCompanyType.InsertParameters("ClientID") = ViewState("ClientID")InsertClientCompanyType.Insert()End IfNextEnd Sub

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