I am relavtively new to ASP.NET programming ang was just starting out on my first project. I am using ASP.NET2.0 technology by using Visual Web Developer 2005 Express Edition and of course with SQL 2005 Express Edition.
I would like to develop a database for our IP addresses, so one field of my table in a SQL data is the field for IP addresses.
I would like to write a program wherein after clicking the button, that field will be automatically filled up with IP addresses (e.g, from 192.168.0.0 to 192.168.0.255).
How do I accomplish this kind of dynamic filling up of fields? Thanks a lot!
i explain what i mean is if i have stored procedure with 7 conditions for evry day in the week one condition like this i have 7 code blocks for Sunday,Monday , .....Saturday
Code Block CREATE PROC YourProc @StartDate datetime = NULL, @EndDate datetime = NULL AS SET @StartDate = COALESCE(@StartDate,DATEADD(d,DATEDIFF(d,0,GETDATE()),0))--defaulting to todays date if not supplied SET @EndDate=COALESCE(@EndDate,DATEADD(m,1,@StartDate))--defaults to 1 month from today
WHILE @StartDate <= @EndDate BEGIN SELECT CASE WHEN DATENAME( dw,@StartDate)='Sunday' AND
empid IN (SELECT empid FROM v_un WHERE (shift =51 ) THEN 1 WHEN DATENAME( dw,@StartDate)='Monday' AND empid IN (SELECT empid FROM v_un WHERE (shift =11 ) THEN 2 ............ WHEN DATENAME( dw,@StartDate)='Saturday' AND ... THEN .. END SET @StartDate=DATEADD(d,1,@StartDate) END GO
I hope someone has seen this one...I've got a very simple web method that returns a DataTable from my database. It worked fine until I changed this line of code:
string SqlString = @"SELECT Timestamp, Confession FROM Confessions WHERE ConfessionID = ? ORDER BY Timestamp desc";
To this line of code:
string SqlString = @"SELECT Timestamp, Confession FROM Confessions WHERE ConfessionID = ? AND CategoryID = ? ORDER BY Timestamp desc";
Here is the complete webmethod:
[WebMethod] public DataTable GetConfession (int ConfessionID, int CategoryID) {
DataTable dt = new DataTable(); dt.TableName = "XMLConfession";
string SqlString = @"SELECT Timestamp, Confession FROM Confessions WHERE ConfessionID = ? AND CategoryID = ? ORDER BY Timestamp desc";
using (OleDbConnection cn = new OleDbConnection (ConnectionString)) { using (OleDbCommand cmd = new OleDbCommand (SqlString, cn)) {
return dt; } To cause the error, all I did was add the AND statement into the query. Now I get this .NET error message every time I try to run this program:
System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. at System.Data.Common.UnsafeNativeMethods.ICommandWithParameters.SetParameterInfo(IntPtr cParams, IntPtr[] rgParamOrdinals, tagDBPARAMBINDINFO[] rgParamBindInfo) at System.Data.OleDb.OleDbCommand.ApplyParameterBindings(ICommandWithParameters commandWithParameters, tagDBPARAMBINDINFO[] bindInfo) at System.Data.OleDb.OleDbCommand.CreateAccessor() at System.Data.OleDb.OleDbCommand.InitializeCommand(CommandBehavior behavior, Boolean throwifnotsupported) at System.Data.OleDb.OleDbCommand.ExecuteCommand(CommandBehavior behavior, Object& executeResult) at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) at System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior) at System.Data.OleDb.OleDbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
I am using SQL Server Compact Edition 3.5 and C# .NET 2.0. It's worth noting that the web service does this outside of the program as well, so I don't think the problem is in the code that calls it. Also worth noting is that the query itself works fine when I substitute values in and run it in .NET Server Explorer.
Hi ! I have a textbox and a Search button. When the user inputs a value and press the button, i want a datagrid to be filled. The following code runs: Dim connect As New Data.SqlClient.SqlConnection( _ "Server=SrvnameSQLEXPRESS;Integrated Security=True; UID= ;password= ; database=dtbsname") connect.Open() Dim cmd As New SqlCommand Dim valor As New SqlParameter("@valor", SqlDbType.VarChar, 50) cmd.CommandText = "Ver_Contactos_Reducido" cmd.CommandType = CommandType.StoredProcedure cmd.Connection = connect cmd.Parameters.Add(valor) cmd.Parameters("@valor").Value = texto Dim adapter As New SqlDataAdapter(cmd) Dim ds As New System.Data.DataSet() adapter.Fill(ds) GridViewContactos.DataSource = ds GridViewContactos.DataBind() connect.Close() I drag a datagrid on the page and only changed its Id. Into the SQL database the stored procedure is the following: ALTER PROCEDURE [dbo].[Ver_Contactos_Reducido] (@Valor VARCHAR(100)) AS BEGIN SET NOCOUNT ON; SELECT NombreRazonSocial, Nombre, Apellido,TelefonoLaboral, Interno, TelefonoCelular, Email1, Organizacion FROM CONTACTOS WHERE NombreRazonSocial = @Valor OR Nombre = @Valor OR Apellido = @Valor OR TelefonoLaboral = @Valor OR Interno = @Valor OR TelefonoCelular =@Valor OR Email1 = @Valor OR Organizacion= @Valor END When i run the page i can't see the datagrid, and after i enter a text and press the button, nothing happens. What am i doing wrong?? Thks!!
I am working on a school project and have come up against a bit of a sticking point. I am supposed to be creating a very basic OMS, the teacher themselves have said they do not know how to do this (in previous years it has all be done via Access) but apparently I am a lucky one to be doing it in SQL this year.
One of the user requirements of the OMS is to fill a data grid with product name and the product details which I have the query for or rather I have created a view for, which is then queried from a stored procedure.
CREATE VIEW [dbo].[v_stock] AS SELECT tab_products.productname, tab_productdetails.description, tab_productdetails.image, tab_productdetails.price, tab_productdetails.stock FROM tab_productdetails INNER JOIN tab_products ON tab_productdetails.productid = tab_products.productid
The problem I am having is then returning the data from this query into a data grid, I think the reason is because when I attached the stored procedure to a table and then call that procedure via the table adapter there is a mismatch of the schema - specifically the table it is attached to does not contain the column "productName".
I am thinking I need to create a temporary table to fill the data grid with - however, I am not sure how I would create a temporary table.
Is there something I am missing or not done correctly. As far as I can tell the queries work as when I preview them they produce the expected results.
I am working with some data that is not so clean. I have some rows that are Very close to being a duplicate row. I need to take all the rows with the same SKU number and fill in the missing data for the Price, Cost or the SalePrice, what ever may be missing. The data is set like @Diamonds MissingData and I need the row to look like @DiamondsWithData table. I can remove the duplicate values once I get the missing data filled in.
Ok, so I can connect to the database without any errors, however im not sure about the syntax for filling a table. Heres what i have so far in the pageload. Like i said this all works with out any errors. Thanks in advance for the help.testDS = New DataSet() testDataTable = New DataTable("Tbl")testDataTable.Columns.Add("username") testDataTable.Columns.Add("datecompleted")testDataTable.Columns.Add("lastfive") testDS.Tables.Add(testDataTable)Me.dgrdSearch0.DataSource = testDS.Tables("Tbl") Dim Conn As Object = Server.CreateObject("ADODB.Connection") Dim strConn = "DRIVER={SQL Server};SERVER=serverName;UID=userID;PWD=password;DATABASE=net"Dim DSNtest As String = strConn Dim sql As String = "SELECT * FROM Tbl"
I just got sql 2005. Can someone point me in the right direction on getting started importing data. I need to be able to load ascii data into SQL 2005 on a weekly basis. This ascii file will have the same data structure but data will change weekly.
I have heard to do this automatically (basically with a click of a button) you should use a DTS package. I also see this SSIS. I am trying to understand what to use for this import process. I would really appreciate any help on this. Thanks.
I want to make a package in SSIS for automatic process of my data cube providing some log informations (two INSERT statements to my log table with actual date and result of operation succesful/unsuccesful). I tried to set data source to analysis services, I found my cube but I don't where I can add my cube to project and how can I desingn it. Can anybody tell me how to??? Thanks
I have a database that I am setting up in SQL Server 2005. Initially, I am doing very large imports of data. Every time I run an import, I am having the increase the size of my transaction logs, and now they are approaching 2 GB. Should these be purging themselves? I have to keep increasing the max size of the log so that I can get my data in. While this will work for now, it is not a long term solution, because I can see the log size growing quite large and the amount of space on the server obviously isn't infinite. Is there a setting that I can change so they will automatically purge? If not, how do I purge this information myself?
I thought I'd post this quick problem and answer, as I couldn't find the answer when searching for it. I tried to call a stored procedure on SQL Server 2000 using the System.Data.SqlClient objects, and was not expecting any unusual issues. However when I came to call the Fill method I received the error "Arithmetic overflow error converting expression to data type int." My first checks were the obvious ones of verifying that I'd provided all the correct datatypes and had no unexpected null values, but I found nothing out of order. The problem turns out to be a difference on the maximum values for integers between C# and SQL Server 2000. Previously having hit issues with SQL Server integers requiring Long Integer types in VB6, I was aware that these are 32-bit integers, so I was passing in Int32 variables. The problem was that Int32.MaxValue is not a valid integer for SQL Server. Seeing as I was providing an abitrary upper value for records-per-page (to fetch all in one page), I was simply able to change this to Int16.MaxValue and will hit no further problems as this is also well beyond any expected range for this parameter. If anyone can name off the top of their heads what value should be provided as a maximum integer for SQL Server 2000, this might be a useful addition, but otherwise I hope this spares others some hunting if they also experience this problem. James Burton
It's well known issue, that one can't use any dataset fields in a report header/footer directly. One of the approach is to create query-based parameter that basically equals =First(Fields!@FieldName@.Value, "@DataSetName@") and use that parameter value instead. But it doesn't work in my case!
My report displays some entity description and is parametrized with EntityID param. Its header contains entity name that, according to the approach, is queried from the data source through the EntityName report parameter. There's important issue: the report is displayed in ReportViewer control, that is embedded into my application and entity ID parameter isn't ser by user in ReportViewer parameters area. Its default value is changed by the application with SetReportParameters() web method every time a user wants to view the report according to the entity the user is exploring in the application. But after the report has been rendered, its header always contains not actual (outdated) entity name. Nevertheless, the report body contains actual data (including entity name). If I alter entity ID parameter in ReportViewer or in web-based Report Manager and refresh report, header displays correct entity name.
I have two tables. When my user completes an insert of data in table (1), I would like the second "related" table (2) to be automatically populated with defaults. Is this possible? My logical approach to this is: 1. Build a handler for the OnInsert event of the first table 2. In the handler, call the Insert Command on the SQLDataSource for the second table with the defaults specified in the DataSource. What I'm not sure how to do is Step 2 or whats the best way. How do I call the Insertcommand programmatically for a DataSource? Or, is there a better way such as some kind of traditional hardwired SQL insert statement like in classical ASP? Or is there a way to programmatically call a stored procedure and if so is the 3rd approach the best way?
How exactly would someone do this best? It seems this would be a rather common thing someone might need to do.
Hey everyone, trying to set up a SQL Query to run on a pre-determinedbatch cycle that will automatically dump out specific table data to a..csv file so that users can load the file into Excel right away, withno manipulation or modification.We are running SQL Server 2000. I am a novice SQL user. Anysuggestions?
Hi,i have a problem about the CLIENT-SERVER architecture procedure.Well , i have an application in VB with ADO connection to a table in adatabase on a SQLSERVER 7.0 .Is possible to do that when a client updates a data in a field of my table ,the SERVER communicates to all clients connected to my table that this dataare updated , without the client do anything , for example without aclient-timer to control the data in the server ???thanks
I've got a question about failover with the database mirroring.
I have 3 servers, 2 with SQL 2005 and 1 with SQL Express as witness.
After getting some problems to install database mirroring with Windows authentification, i had to create an authentification by certificate.
All goes well but my problem is about my primary instance SQL alias.
The alias on the primary doesn't follow on the secondary when the primary is down.
I've searched on forums and in the internet SQL web sites, but i didn't find anything.
I create another alias on the secondary but i don't know how to modify it in T-SQL...
I would like to know if there's any solution to modify an SQL instance alias by transact-SQL? or if anyone has already install on its servers, a fail over automatic with one instance alias with data mirroring in T-SQL?
what i need to do for my project are as following:
a mobile user send data via GPRS to SQL server Database. then i need to have a method to detect while a particular table is being inserted. and then extract data from table construct a report dynamiclly. what should i do to achieve this goal? e.g. window application, store procedure or trigger ?
PS : client side is a mobile application developed using MCL. i don't in which way he will send all data to SQL server Database, so what i need to do is to monitor new data inserting.
2) how to auto generate and print report directly after record been inserted into the table ? Do i need to import report web service API ? if yes, which one? or i can use other methods e.g. predefine report control view in my window application, turn off pop-up menu while printing a report(I guess)
I have a problem with the round of SQL Server 2K on the float data type.
In my application I do a SQL request for find a row in a table of SQL Server 2K.
This is the request :
SELECT DISTINCT N_ROW_ID FROM COMM WHERE N_ARTICLE_ID=79510 AND N_DATASOURCE_ID=1 AND N_SOURCE_ID=-102 AND N_PROVIDER_ID=-100 AND N_LEAD_TIME IS NULL AND N_UNIT_PRICE = 329.78 AND N_UNIT_PRICE_CURRENCY_ID=1
N_UNIT_PRICE is a float data type.
In the line need, the field N_UNIT_PRICE has 329.78 but with the round of SQL Server 2K I have 329.779999999999997.
So I never find the row
Do you have a solution for comparate a float flied with SQL Server round and a float send in a request as my 329.78?
I can't transform the column in decimal or numeric data type.
hi, how can i fill dropdownlist through code not through visit.and i need to know which is fastest and easy way for web application throught this below query. cmd.Connection = conn conn.Open()Dim ds As New DataSet cmd.CommandText = "SELECT Emp_Name,Emp_ID FROM Employee " da.Fill(ds, "data") cmd.ExecuteNonQuery() conn.Close()
Currently we have tables (in sql 6,5), many of them do not have primary keys. While I was trying to re-index (re-org), many of them got an error: "fillfactor 204 is not a valid percentage; fillfactor must be between 1 and 100." (many tables' fillfactor exceed 100 or more...) How can I fix them so I can upgrade to sql 7 ? Thank you for your help.
I am really confused about this whole fill factor thing. The way I understand it, is if you have a table whose data remains pretty much static, you should use a higher fill factor. Suppose you had a database where you had at most 150 transactions a day that changed the data, should the fill factor be left at the default(0) or increased? How do you determine how much to increase it? Is there a rule of thumb that suggests if you have x number of changes against a table, you should have a fill factor between y and z percent?
Hi all, While creating indexes for a table, I specified a fill factor of 70%. I then inserted a few hundred rows into the table. Is it possible to check to what percent the pages are full after the rows have been inserted?
You have a db with 50,000 records and you want to add 100,000 more. What should the right fill factor be? Is there a way to "calculate" a fill factor if you don't want to use default? Any help is appreciated. Thank you.
I have a web online table that is inserted about 1500 record one day. Each night, a DST is running to pull all data to anther database. How to set fill factor on a one column index to get the best performance? Current fill factor is 80%.
Hi experts, I would like to ask regarding FILL FACTOR. I observed that our system's loading is a bit slow, and some of the modules take 1 to 2 minutes loading. Maintenance activity is regularly executed based on the scheduled sets. Then I tried to checked the tables indexes/keys turns out that the FILL FACTOR is set to ZERO(0). I would like to know if the FILL FACTOR set to zero will be a factor for the system to slow down..????
How do you fill out an order form; there is an Order(OrderID, CustomerID, Subtotal, Tax, Total), Orderdetail(OrderID, ProductID, Qty, UnitPrice, ExtendedPrice)
How do I get those tow together in the same form, which can be called order, or invoice it doesn't matter as long as I can get them in the same form numberd like order 1, then order 2, ect. is it by stored procedure, or by ado.net, or both ? or is there anywhere I can find information? like a book? or website ?
I have one complicated problem with SQL data files. Say that we have four data files:
F1=2000MB F2=1000MB F3=3000MB F4=1500MB
We want to add 3000 MB on these files, and in the same time we want to make the files proportional one with each other:
Will do:
F1 + 500=2500MB F2 + 1500=2500MB F4 + 1000=2500MB
With my logic, the final result we’ll be:
F1=2500 MB F2=2500 MB F3=3000MB F4=2500MB
There is an algorithm or a formula to calculate the right value to add to each F1, F2….Fn files having S1, S2….Sn sizes for a T total value to add? Thank you in advance.
P.S. The problem can be complicated when we deal with more than one filegroups and with disk space availability.
