I have an sp, which has 2 select statements, so iam using a sqldatareader and binding the data to a dropdown.
the first binding is fine, but when i say dataReader.NextResult(), It is null.It says the reader is closed. Can any one tell a work around for this.
thanx in advance,
Anil Kumar.
thx but this code not needed anymore
sry
i am running a java program in tomcat to connect SQL Server,using the Microsoft's jdbc driver ,as the following code :
import java.sql.*;
class Bkjz{
ResultSet rs=null;
String spde;
String condition;
Connection con=null;
Statement sql;
public String getSpde(){
return spde;
}
public void setSpde(String spde){
this.spde=spde;
}
public ResultSet Searchsjk(){
try {
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
con=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;databasename=zkbm","zkbm","zkbm");
sql=con.createStatement(ResultSet.TYPE_SCROLL_SENS ITIVE,ResultSet.CONCUR_READ_ONLY);
if(spde.equals(""))
condition="select CRCC,CRNM,SPDE,SPNM from SPCR where EMTP='5'group by SPDE,SPNM,CRCC,CRNM";
else
condition="select CRCC,CRNM,SPDE,SPNM from SPCR where SPDE='"+spde+"'"+"and EMTP='5' group by SPDE,SPNM,CRCC,CRNM";
rs=sql.executeQuery(condition);
//con.close();
if(!rs.next())
{
return null;
}
else
{
rs.previous();
return rs;
}
}
catch(Exception e){
message="exception!!! "+e.toString();
System.out.println(e);
return null;
}
}
}
public class Bk{
public static void main(String args[]){
Bkjz bbb=new Bkjz();
bbb.setSpde("1020110");
try{
ResultSet rr=bbb.Searchsjk();
while(rr.next()){
System.out.println(rr.getString("CRCC"));
}
}
catch(Exception e){
System.out.println(e);
}
}
}
without con.close(),it can return Resultset ,but when includeing con.close(),an Exception tell me:Object has been closed, in other programms i've close connection,but it never throws this Exception,why? thanks
Hi..
Every time I want to read any record from data base I read it in dataset for example:SqlConnection con = new SqlConnection(@"Data Source=localhost ;Initial Catalog=university ;Integrated Security=True");
SqlCommand cmd = new SqlCommand("select [User_AuthorityID] from users where [UserID]='" + TextBox1.Text + "' and [UserPassword]='" + TextBox2.Text + "' ", con);SqlDataAdapter adp = new SqlDataAdapter();
adp.SelectCommand = cmd;DataSet ds = new DataSet();
adp.Fill(ds, "UserID");foreach (DataRow dr in ds.Tables["UserID"].Rows)
{
user_type = dr[0].ToString();
Session.Add("User_AuthorityID", user_type);
.........
Is there easier way to read data from data base?
How I can use SqlDataReader to do that?
Thanks..
Hey All,
I have come across a situation with two tables, they are dynamic and the user can add and edit values in the tables so I need to build a dynamic display control. It is all based around an FAQ system I have built. The user can create new FAQ categories (that is one table) then create a new FAQ Question & Answer (that is the second table). The tables are linked by the category id. So now I am trying to display the FAQ section like so.
CATEGORY NAME
QuestionAnswerQuestionAnswerCATEGORY NAME
QuestionAnswerQuestionAnswerCATEGORY NAME
QuestionAnswerQuestionAnswer
So my idea was to run a loop within a loop. First loop the category name, then within the category name, loop a second time to grab all of the questions & answers within the category id captured from the first loops sql select statement, then proceed to loop the category name again and of course repeat the process until all loops are completed. However I am getting, and I kinda figured I would get an error about my SQLDataReader. Bellow is my code maybe some type of edit or different recommendation is needed. Any help will do, thanks!Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'--- Database Connection ---Dim sConnStr As String = ConfigurationManager.ConnectionStrings("ConnectionString").ConnectionString
Dim cnBKPost As New SqlConnection(sConnStr)
'--- End DB Connection ----
'----- FAQ's -------
Dim sql As String = "SELECT category_id, category_name FROM faq_category ORDER BY category_name DESC"Dim cmd As New SqlCommand(sql, cnBKPost)
cnBKPost.Open()Dim reader As SqlDataReader = cmd.ExecuteReader()
Dim str As New StringBuilder()
Dim catid As IntegerDo While reader.Read()
'--- Category Titles ----catid = reader("category_id")
str.Append("<h2>" & reader("category_name") & "</h2>")
'--- End Category Title ---
'--- Get FAQ's In Category ---
Dim sqlcat As String = "SELECT faq_question, faq_answer FROM tbl_faq WHERE faq_category = '" & catid & "'"Dim cmdcat As New SqlCommand(sqlcat, cnBKPost)
Dim readerfaq As SqlDataReader = cmdcat.ExecuteReader()Do While readerfaq.Read()
str.Append("<p><font style='font-size:12pt;font-color:#daa520;>'" & reader("faq_question") & "</font><br />")str.Append(reader("faq_answer") & "</p>")
str.Append("<br /><br /><br />")
Loop
readerfaq.Close()
'--- End Get FAQ's in Category ---
Loop
reader.Close()
cnBKPost.Close()Me.Literal1.Text = str.ToString()
End Sub
End Class
i'm using c# and SqlDataReader to simply retrieve data from one column of a database. problem is it's an integer i'm trying to retrieve, and so i'm trying to put it into an int variable, and i get the error "CS0029: Cannot implicitly convert type 'object' to 'int'" . i've looked for an answer for about an hour and every example for the SqlDataReader that i can find deals with strings only or the examples are too complex for me to understand.
there must be an easy way to retrieve this data and put it into an integer! help...
my line of code that creates the error:
int intGuestNum = dtrSelectTotalSessions["online_numSessions"];
I have the Function, that fires from onLoad even of one of the asp:Label controls on my main page.
Here is it's code:
SqlConnection conn = new SqlConnection(); conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["UkraineConnectionString"].ToString(); SqlCommand comm = new SqlCommand("SELECT [Greeting] FROM [Misc]", conn);
try { conn.Open(); } catch { Response.Write("Error opening connection in Page_Load of default.aspx to retrieve the greetings"); }
string MyGreet = (string)comm.ExecuteScalar();
Greetings.Text = MyGreet;
try { conn.Close(); } catch { Response.Write("Error closing connection in Page_Load of default.aspx after retrieving the greetings"); } }
When it gests to conn.Open() in the debugging mode I see that the ServerVersion = 'conn.ServerVersion' threw an exception of type 'System.InvalidOperationException'.
The most interesting thing is that it used to work before.
Here is the connection string it retrieves fine.
"Data Source=MDM1;AttachDbFilename=|DataDirectory|Ukraine.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"
As I said it used to work, but one day I tried to access the web site and it said this error that I get, that the connection is closed. Then I was using the SQL Server Express. When in the Visual studio if I would run this same site in debug, everything was working fine. I decided to uninstall the SQL Express and installed the SQL Server.
If I open the SQL Server Managment Studio in the Server name field I see MDM1(this is the name of the PC, but probably it is the same name for the Server. Well, in the MAnagment Studio it conects fine to the MDM1 so it is no probably the naming problem. Ithink it has something to do with permisssions.
If someon can - please help. Thanks.
Hello,
I have built a system, that uses a .dll file for all SQL operations. So a program looks something like this:
using myDLL;
....
SQLDBCON mSQL = new SQLDBCON();
and here comes the rest of the program.
My question is, the dll file has all stored procedures and when you declare mSQL as shown above, then it opens a thread to the database for that user.
Is that thread properly closed when the site has finished loading?
in my .aspx page i dont have a function like mSQL.CloseDB();
and if i try to add something like this to the dll file
~SQLDBCON {
m_local_con.Close();m_local_con.dispose();
}
i get a error message says something that this is not allowed.
Just want to know if my thread in the dll file is properly closed?
That is an app ACCESS 2000 wih Named Pipe ODBC to SQL Server 6.5.
After 10 minutes without use this app, the connection closed !
Have-you idea for correct this probleme ?
Regards
Alain
I'm getting object closed when returning a recordset from a stored procedure. I've tested the select statement in Query Analyzer and a value is getting returned. So, I'm not sure if my code for my stored procedure is incorrect?
Here is the code for the procedure:
CREATE Procedure dbo.GetRepEmailByZip
@sessionid varchar(50),
@zip varchar(5)
AS
Begin Transaction
INSERT INTO dbo.SupportRequests(firstname,lastname,schoolname, address,city,state,zip,phone,email,currentcustomer ,implementationtype,producttype,comment)
(SELECT FirstName,LastName,SchoolName,Address,City,State,Z ip,Phone,Email,CurrentCustomer,ImplementationType, ProductType,Comment
FROM dbo.Temp_ContactInfo
WHERE sessionid = @sessionid)
--If Transacation fails, stop execution of procedure, return error code and Rollback Transaction
IF @@ERROR<>0 OR @@RowCount = 0
BEGIN
ROLLBACK TRANSACTION
--return value
RETURN 1
END
--If Transaction succeeds, commit transaction, continue and process the select statement
COMMIT TRANSACTION
SELECT r.email
FROM PostalCodes p
INNER JOIN TerritoryList z ON p.ZipID = z.ZipID
INNER JOIN RepList r ON r.RepID = z.RepID
WHERE p.ZipCode = @zip
GO
This is the code I'm calling to execute the procedure and return the recordset:
set GetRepEmail = Server.CreateObject("ADODB.Command")
With GetRepEmail
.ActiveConnection = MM_DBConn_STRING
.CommandText = "dbo.GetRepEmailByZip"
.CommandType = 4
.CommandTimeout = 0
.Prepared = true
.Parameters.Append .CreateParameter("@RETURN_VALUE", 3, 4)
.Parameters.Append .CreateParameter("@sessionid", 200, 1,50,usrid)
.Parameters.Append .CreateParameter("@zip", 200, 1,5,zip)
set RepEmail = .Execute()
End With
Dim x, y
x = RepEmail.RecordCount
y = RepEmail.State
Response.Write(x)
Response.Write("<br>")
Response.Write(y)
'Response.Write(RepEmail("email"))
Response.End()
I'm getting "Operation is not allowed when the object is closed", which is occuring on the following line:
x = RepEmail.RecordCount
I'm trying to determine if this is problem within my procedure or in the application code.
Thanks in advance for any help.
In a previous post I asked the question relating to moving a file assoicated with a connection. It appears I need to close the connection first.
On advice, in a script task I created the following:
Dim dtsConnection As Microsoft.SqlServer.Dts.Runtime.ConnectionManager
For Each dtsConnection In Dts.Connections
Dim LiveConnection As Object = dtsConnection.AcquireConnection(Nothing)
Dts.Events.FireInformation(0, "", "Connection Name : " + dtsConnection.Name, "", 0, False)
dtsConnection.ReleaseConnection(LiveConnection)
dtsConnection.Dispose()
Next
Dts.TaskResult = Dts.Results.Success
RetainSameConnection is set to true.
The dispose line is something I've added just to try - I've tried it without this line as well.
The next component then moves the file and fails complaining that the file is in use.
What can I do?
Regards
Guy
Wierd problem here
As one user, when i select * from sys.conversation_endpoints I can see all (I assume) conversations in all states specifically DO, DI and CD
However when I change to another user I see only DI
Why is this?
If it is a permissions issue what permission do I have to grant to a user to see all conversations in sys.conversation.endpoints?
Hi, from what I can find, there isn't a way to get the number of rows returned from a SQLDataReader command. Is this correct? If so, is there a way around this? My SQLDataReader command is as follows:Dim commandInd As New System.Data.OleDb.OleDbDataAdapter(strQueryCombined, connInd)Dim commandSQL As New SqlCommand("GetAssetList2", connStringSQL)Dim resultDS As New Data.DataSet()'// Fill the dataset with valuescommandInd.Fill(resultDS)'// Get the XML values of the dataset to send to SQL server and run a new queryDim strXML As String = resultDS.GetXml()Dim xmlFileList As SqlParameterDim strContainsClause As SqlParameter'// Create and execute the search against SQL ServerconnStringSQL.Open()commandSQL.CommandType = Data.CommandType.StoredProcedurecommandSQL.Parameters.Add("@xmlFileList", Data.SqlDbType.VarChar, 1000).Value = strXMLcommandSQL.Parameters.Add("@strContainsClause", Data.SqlDbType.VarChar, 1000).Value = strContainsConstructDim sqlReaderSource As SqlDataReader = commandSQL.ExecuteReader()results.DataSource = sqlReaderSourceresults.DataBind()connStringSQL.Close()And the stored procedure is such:DROP PROC dbo.GetAssetList2;GOCREATE PROC dbo.GetAssetList2(@xmlFileList varchar(1000),@strContainsClause varchar(1000))ASBEGINSET NOCOUNT ONDECLARE @intDocHandle intEXEC sp_xml_preparedocument @intDocHandle OUTPUT, @xmlFileListSELECT DISTINCTAssetsMaster.AssetMasterUID,SupportedFiles.AssetPath,FROM AssetsMaster, OPENXML (@intDocHandle, '/NewDataSet/Table',2) WITH (FILENAME varchar(256)) AS x,SupportedFilesWHEREAssetsMaster.AssetFileName = x.FILENAMEAND AssetsMaster.Extension = SupportedFiles.Extension UNIONSELECT DISTINCTAssetsMaster.AssetMasterUID,SupportedFiles.AssetPath,FROM AssetsMaster, OPENXML (@intDocHandle, '/NewDataSet/Table',2) WITH (FILENAME varchar(256)) AS x,SupportedFilesWHEREAssetsMaster.AssetFileName <> x.FILENAMEAND CONTAINS ((Description, Keywords), @strContainsClause)AND AssetsMaster.Extension = SupportedFiles.ExtensionORDER BY AssetsMaster.Downloads DESCEXEC sp_xml_removedocument @intDocHandle ENDGOHow can I access the number of rows returned by this stored procedure?Thanks,James
View 3 Replies View RelatedHow do I tell when there is no more data to read in a SQLDataReader?
For example, I have an open datareader that I pass into a function that MIGHT still have a valid row in it when it returns from the function. How do I tell? I can't do a read() because then that current record will go away. I need to be able to tell if there is a current record without doing another read.
TIA,
Say I have this SQL query running into an SqlDataReader select TaskName, TaskDescription from tblTasks where TaskID = 5 There are two different ways to get the data out of the reader (maybe more) TaskName.Text = Reader.GetString(0);andTaskName.Text = Reader.GetString(Reader.GetOrdinal("TaskName")); My question is, is there a major difference in terms of efficiency between these two? The second one is definitely more robuts (in a situation where you are calling a stored procedure, and the stored procedure might change, etc) but the first one has fewer operations. Is the increase in robustness of the second one worth the potential performance hit, if any? Thank you, -Madrak
View 2 Replies View RelatedMay I know what is the purpose of having SqlDataReader in Example A? I can see the same output when I tried out both. Should I use Example A or Example B? Currently, I'm using Example B since it is lesser code.Example A Dim objDR As SqlDataReader 'Create Data Reader
LoginConn.Open()
strSQL = "SELECT CountryID, CountryName FROM Country ORDER BY CountryName "
cmd = New SqlCommand(strSQL, LoginConn) objDR = cmd.ExecuteReader() 'Populate the DataReader ddlNationality.DataSource = objDR ddlNationality.DataBind() ddlNationality.SelectedValue = dvUserProfile.Item(0)("Nationality")LoginConn.Close() Example BLoginConn.Open() strSQL = "SELECT CountryID, CountryName FROM Country ORDER BY CountryName " cmd = New SqlCommand(strSQL, LoginConn) ddlNationality.DataSource = cmd.ExecuteReader() 'Populate the DataReader ddlNationality.DataBind() ddlNationality.SelectedValue = dvUserProfile.Item(0)("Nationality")LoginConn.Close()
Hello every one and happy new year...
i have a problem with SqlDataReader used in asp.net application:
I defined a public object of SqlDataReader and assigned it the resultset of a query,
well, this happened ,lets say in page 1# but whan i want to use this datareader in another page
it keeps telling my that the reader is closed so i can't abstract information from, regarding that i used it's methods such "Read()" and "NextResult()"
but there is no use, what should i do, help me please !!!!!?
Hello im fairly new to ASP.Net and have a problem with an Intranet Page I am creating. In this part of the page I want to retrive a value from an SQL Table based on criteria and then store it as a variable to be used elsewhere on my page. I have tried using the SQL Data reader to retrive the value but somewhere in my code I am going wrong. Can anyone advise me on this please? See code below
My Visual Studio debugger has point out that there is a problem with my r = cmd.ExecuteReader() line
Oh and the connection to my SQL database is opened further up the page from this code.
Dim strSQL As String = "SELECT top 1 OrderID FROM tblStationeryOrder WHERE ORDERMADEBY = '" & lstUsers.SelectedValue & "' ORDER BY OrderID DESC"Dim cmd As New System.Data.SqlClient.SqlCommand
cmd.CommandText = strSQLDim r As System.Data.SqlClient.SqlDataReader
r = cmd.ExecuteReader()Do While r.Read()
Dim OrderID As Integer = r!OrderID
Exit Do
I found this tutorial at C# Station called "Reading Data with the SqlDataReader".
In my code behind file I followed what I think the tutorial was telling me to do but I keep getting a syntax error near '='
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: Line 1: Incorrect syntax near '='. (Line 45: rdr = cmd.ExecuteReader();)
Heres my code:
protected void Page_Load(object sender, EventArgs e) { this.lblDate.Text = DateTime.Today.ToString("d"); string username; username = Convert.ToString(Session["usr"]); SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["csSecurity"].ConnectionString); SqlDataReader rdr = null; SqlCommand cmd = new SqlCommand("SELECT PROG_OFF FROM Logon_Table WHERE usr = " + username, conn); try { conn.Open(); rdr = cmd.ExecuteReader(); }
Any suggestions here would be great. Any links to tutorials you know of would be helpful also.
Thanks
good afternoon everybody
this is my code: and their is an error ,,really dunno where and why coz it seems logical to me :)Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
If RadioButton1.Checked = True Then
Dim admin As Stringadmin = "SELECT * from ADMINISTRATOR where UserName='" & TextBox1.Text & "' and UserPassword='" & TextBox2.Text & "'"
Dim sConnect As String = "Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Database.mdf;Integrated Security=True;User Instance=True"Dim cnt As New SqlConnection
cnt.ConnectionString = sConnect
cnt.Open()Dim com As New SqlCommand
com.Connection = cnt
com.CommandText = adminerror!!>>>>Dim rd As SqlDataReader
rd = com.ExecuteReader
If rd.Read ThenSession("admn") = rd("UserName")Session("id") = rd("UserID")
rd.Close()
cnt.Close()Response.Redirect("~/adminpage.aspx")
ElseSession("admn") = 0
Label3.Visible = True
rd.Close()
cnt.Close()
End If
Else
Dim instrct As Stringinstrct = "SELECT * from instructor where name='" & TextBox1.Text & "' and passs='" & TextBox2.Text & "'"
Dim sConnect As String = "Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Database.mdf;Integrated Security=True;User Instance=True"Dim con As New SqlConnection
con.ConnectionString = sConnect
con.Open()Dim com As New SqlCommand
com.Connection = con
com.CommandText = instrctDim r As SqlDataReader
r = com.ExecuteReader
If r.Read ThenSession("inst") = r("inst_name")
r.Close()
con.Close()Response.Redirect("~/instructorpage.aspx?id=" & Session("inst"))
ElseSession("inst") = 0
Label3.Visible = True
r.Close()
con.Close()
End If
End If
End Sub
-----------------
this is the error line:
The data types text and varchar are incompatible in the equal to operator.
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: The data types text and varchar are incompatible in the equal to operator....
so,,,any suggestions?
see ths code. please
== DAL ==
public static SqlDataReader ExecuteReader(SqlParameter param, string sp) { using (conn = new SqlConnection(connectString)) { SqlDataReader sdr = null; try { conn.Open();
comm = new SqlCommand(); comm.CommandText = sp; comm.CommandType = CommandType.StoredProcedure; comm.Connection = conn; comm.Parameters.Add(param); sdr = comm.ExecuteReader(CommandBehavior.CloseConnection); } catch(SqlException e) { WriteToLog(e.Message); } return sdr; } }
and, call above ExecuteReader() flowing this,
== BL ==
public UserEntity GetUserInformation(string UID, string sp) { UserEntity ue = new UserEntity();
SqlParameter userUID = new SqlParameter("@USR_ID", SqlDbType.VarChar, 20); userUID.Value = UID;
using (SqlDataReader sdr = DbHelper.ExecuteReader(userUID, "SP_GETUSERINFORMATION")) { if (sdr != null) { while (sdr.Read()) { ue.UserId = sdr["lecture_usr_id"].ToString(); ue.UserName = sdr["lecture_usr_realname"].ToString(); ue.Email = sdr["lecture_usr_email"].ToString(); ue.Phone = sdr["lecture_usr_phone"].ToString(); ue.Lastlogin = (DateTime)sdr["lecture_usr_lastlogin"]; ue.SignDate = (DateTime)sdr["lecture_usr_signdate"]; } } return ue; } }
error message is,
Invalid attempt to call Read when reader is closed.
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.InvalidOperationException: Invalid attempt to call Read when reader is closed.Source Error:
Line 77: if (sdr != null)
Line 78: {
Line 79: while (sdr.Read())
Line 80: {
Line 81: ue.UserId = sdr["lecture_usr_id"].ToString();Source File: C:Users
aphyrDocumentsVisual Studio 2008ProjectslectureBusinessLogicUserManager.cs Line: 77
I can't understand!!! I try to debuging!!! but, I don't know.
please help me!
suppose I have a data reader which is returned by excuting a command "SELECT [xxx], [yyy], FROM [zzz]" , then I reads the data as normal. while I am reading , there is another thread that excute an insert command to that table , does this insertion effect the order of data that I am reading?
View 5 Replies View RelatedI have an SP that returns a result set that contains a tinyint. My problem is that, when I try and access this value using GetInt16 (or 32), I get an error saying that "Specified cast is not valid". TinyInt is 1 byte, or 8 bits. GetInt16 'Gets the value of the specified column as a 16-bit unsigned integer'. I am assuming that this is the root cause of my problem. But, there doesn't seem to be a GetInt8 ?! Any ideas?
Thanks, Martin
hi..i am kind of new to asp.net n having trouble with the SqlException error message.. n this code works as 1st page pass the id to second page and the second page took the id to execute the query..i dun know the wer the error occurs..can give a help..Thanks.
private void Page_Load(object sender, System.EventArgs e)
{
SqlConnection connection = null;
SqlCommand command = null;
string sqlConnection = null;
string sql = null;
string ab = null;
sqlConnection = ConfigurationSettings.AppSettings["MSQLConnectionString"];
connection = new SqlConnection(sqlConnection);
if (!Page.IsPostBack)
{
try
{
if (Request.QueryString["categoryID"] == null)
{
}
else
{
ab= Request.QueryString["categoryID"].ToString(); //getting the id from page that pass this values
sql = "Select groupname, categoryid, description from groups where groups.categoryid=?"; // can this query execute?
command = new SqlCommand(sql, connection);
connection.Open();
command.Parameters.Add(new SqlParameter("categoryid", ab));
reader = command.ExecuteReader(); // error on here "SqlException"
while (reader.Read())
{
group.InnerText = reader["groupname"].ToString();
desc.InnerText = reader["description"].ToString();
}
}
}
finally
{
if (reader != null)
{
reader.Close();
}
if (connection != null)
{
connection.Close();
}
}
}
I have a page that I have 3 connections. I've made sure that each of these are closed when they are not being used and opened just right before being used. I keep getting the error "There is already an open DataReader associated with this Command which must be closed first." This error might show up as being produced by a dataadapter or sqldatareader...I have many. I've even tried to make separate connections as some have mentioned for each...leaving me with 15+ connections. I have added "MultipleActiveResultSets=True" to the connection strings as some have mentioned. I just don't know where to go from here...
Is it possible that the problem lies in multiple instances of this page being opened? Also, the data refreshes every 15 seconds. I really need this to work, but I have no clue on how to fix this problem. The error is easy to reproduce by opening up multiple instances, but some of the times is doesn't give an error at all?!
Hello all,
I'm writing some stored procedures that first do an Insert or an Update, and then also do a Select to return a Recordset back to an ADO client. However an Insert or Update causes a closed recordset to be produced in ADO. I can skip over the closed recordset with the NextRecordset method.
So the question is, is there any way of stopping the closed recordset being returned? I don't want to have to call the NextRecordset method from ADO as this would mean that the client would need to know about the implementation of the stored procedure.
Has anyone got any ideas on how to get round this?
Thanks
Dave Sykes
I have gathered from reading online that I need to create a 2nd connection to SQL Server if I want to insert records into the database while in a "while (reader.Read())" loop.
I am trying to make my code as generic as possible, and I don't want to have to re-input the connection string at this point in my code. Is there a way to generate a new connection based on the existing open one? Or should I just create 2 connections up front and carry them around with me like I do for the 1 connection now?
Thanks.
Finding the court cases where all children associated with that case have a programClosureDate. I can run this query:
CaseInfo Table
CaseID,
CaseNumber,
CaseName
CaseChild Table
CaseID, FK to CaseInfo
ChildPartyID, FK to PartyID in Party table
ProgramClosureDate
Party Table
ID,
PartyID,
Firstname,
LastName
SELECT ci.CaseNumber, ci.CaseName, p.firstname+' '+p.lastname AS child, cc.programClosureDate
FROM CaseInfo ci JOIN
CaseChild cc ON ci.CaseID = cc.CaseID JOIN
Party p ON cc.ChildPartyID = p.PartyID
WHERE cc.ProgramClosureDate IS NOT NULL
ORDER BY ci.CaseName
But this does not give me the cases where all the children have programCLosureDate IS NOT NULL.
I have written a stored proceedure for MSSQL that needs to run for hours ata time. I need to execute it from C++ code. The current code does:nRet = SQLDIRECTEXEC(hstmt, "exec stored_proc", SQL_NTS)followed shortly after by aFree_Stmt_Handle(hstmt) //roughlyThe stored proc currently dies with the statement handle, not fullypopulating the table I need it to.I need to either know when the proc finishes so I can close the handle afterthat, or allow the proc to run independently on the server no matter whatthe program is doing (is exited, etc), either of these is fine.Please Help! Thanks in advance!Joseph
View 2 Replies View RelatedCan anybody tell me why a) when running a stored proc from an asp page toreturn a recordset the command succeeds if the sp queries an existing tabledirectly, but b) if the stored proc populates results into a differenttable, temporary table, global temp table, or table variable, then queriesone of these, the asp page reports that the recordset object is closed. Ifusing a table, I have set grant, select, update, delete permissions for theasp page user account, so it doesn't appear to be a permissioning issue. Ifrun in Query Analyser the sp runs fine of course.Abridged asp code is as follows:StoredProc = Request.querystring("SP")oConn.ConnectionString = "Provider=SQLOLEDB etc"oConn.Openset oCmd = Server.CreateObject("ADODB.Command")oCmd.ActiveConnection = oConnoCmd.CommandText = StoredProcoCmd.CommandType = adCmdStoredProcoCmd.Parameters.Refresh'code here that populates the parameters of the oCmd object correctlySet oRs = Server.CreateObject("ADODB.Recordset")With oRS.CursorLocation = adUseClient.CursorType = adOpenStatic.LockType = adLockBatchOptimistic'execute the SP returning the result into a recordset.Open oCmdEnd With' Save data into IIS response objectResponse.ContentType = "text/xml"oRs.Save Response, adPersistXML'the line above fails with stored procs from example B below, reporting "notallowed when object is closed", but works with example ASP Example A - this one works fineCreate Proc spTestA ASSELECT ID FROM FileListGOSP Example B - this one doesn't work from ASP but runs fine in QACreate Proc spTestB ASDECLARE @Results Table (ID TinyInt)INSERT INTO @Results SELECT ID FROM FileListSELECT ID FROM @ResultsGOI can see the SP executing using profiler when the asp page is called forboth sp's above, so it doesn't appear to be a problem with the execution.It's something to do with returning the result set from the table variable.Thanks,Robin Hammond
View 1 Replies View RelatedThe application server gets below error while the job is being run intermittently:
An error occurred while performing connection management
com.microsoft.sqlserver.jdbc.SQLServerException: The connection is closed.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:171)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.checkClosed(SQLServerConnection.java:319)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.prepareStatement(SQLServerConnection.java:1839)
[Code] ....
There is no error reported in SQL logs.
I have this stored procedure on SQL 2005:
USE [Eventlog]
GO
/****** Object: StoredProcedure [dbo].[SelectCustomerSoftwareLicenses] Script Date: 08/07/2007 16:56:32 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[SelectCustomerSoftwareLicenses]
(
@CustomerID char(8)
)
AS
BEGIN
DECLARE @Temp TABLE (SoftwareID int)
INSERT INTO @Temp
SELECT SoftwareID FROM Workstations
JOIN WorkstationSoftware ON Workstations.WorkstationID = WorkstationSoftware.WorkstationID
WHERE Workstations.CustomerID = @CustomerID
UNION ALL
SELECT SoftwareID FROM Notebooks
JOIN NotebookSoftware ON Notebooks.NotebookID = NotebookSoftware.NotebookID
WHERE Notebooks.CustomerID = @CustomerID
UNION ALL
SELECT SoftwareID FROM Machines
JOIN MachinesSoftware ON Machines.MachineID = MachinesSoftware.MachineID
WHERE Machines.CustomerID = @CustomerID
DECLARE @SoftwareInstalls TABLE (rowid int identity(1,1), SoftwareID int, Installs int)
INSERT INTO @SoftwareInstalls
SELECT SoftwareID, COUNT(*) AS Installs FROM @Temp
GROUP BY SoftwareID
DECLARE @rowid int
SET @rowid = (SELECT COUNT(*) FROM @SoftwareInstalls)
WHILE @rowid > 0 BEGIN
UPDATE SoftwareLicenses
SET Installs = (SELECT Installs FROM @SoftwareInstalls WHERE rowid = @rowid)
WHERE SoftwareID = (SELECT SoftwareID FROM @SoftwareInstalls WHERE rowid = @rowid)
DELETE FROM @SoftwareInstalls
WHERE rowid = @rowid
SET @rowid = (SELECT COUNT(*) FROM @SoftwareInstalls)
END
SELECT SoftwareLicenses.SoftwareID, Software.Software, SoftwareLicenses.Licenses, SoftwareLicenses.Installs FROM SoftwareLicenses
JOIN Software ON SoftwareLicenses.SoftwareID = Software.SoftwareID
WHERE SoftwareLicenses.CustomerID = @CustomerID
ORDER BY Software.Software
END
When i execute it in a Query in SQL Studio it works fine, but when i execute it from an ASP page, i get following error:
ADODB.Recordset error '800a0e78'
Operation is not allowed when the object is closed.
/administration/licenses_edit.asp, line 56
Here the conection:
Set OBJdbConnection = Server.CreateObject("ADODB.Connection")
OBJdbConnection.ConnectionTimeout = Session("ConnectionTimeout")
OBJdbConnection.CommandTimeout = Session("CommandTimeout")
OBJdbConnection.Open Session("ConnectionString")
Set SQLStmt = Server.CreateObject("ADODB.Command")
Set RS = Server.CreateObject("ADODB.Recordset")
SQLStmt.CommandText = "EXECUTE SelectCustomerSoftwareLicenses '" & Request("CustomerID") & "'"
SQLStmt.CommandType = 1
Set SQLStmt.ActiveConnection = OBJdbConnection
RS.Open SQLStmt
RS.Close
Can anyone help please?
It this because of the variable tables?
I am using MS JDBC driver 2005 1.2 and in-house written connection pooling that was working fine for a number of years. This combination worked OK with SQLserver 2000. But recently we switched to SQLServer 2005 (x64) on WIN Server 2003 Standard x64 eddition. Everything seems work OK during business hours, however, after business hours when there are lesser users and connection stays idle for sometime, I am getting the following error:
com.microsoft.sqlserver.jdbc.SQLServerException: The connection is closed.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.checkClosed(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.setAutoCommit(Unknown Source)
at com.nms.serverframework.dbaccess.OnlineTransactionManager.freeConnection(OnlineTransactionManager.java:420)
at com.nms.serverframework.dbaccess.OnlineTransactionManager.releaseConnection(OnlineTransactionManager.java:707)
at com.nms.serverframework.dbaccess.OnlineTransactionManager.releaseConnection(OnlineTransactionManager.java:688)
at com.nms.serverframework.dbaccess.OnlineTransactionManager.finalize(OnlineTransactionManager.java:399)
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83)
at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
Any help would be appreciated
thanks in advance