Want To Compare Webform Input To Database
Apr 9, 2008
Hello,
I am writing a website (in vb) to allow for room use reservations and I am looking for a way to compare the selected start and end times which are date-time format to records already in the database for that day/time and specific room. If the selected time does not fall within an already reserved time frame I then want to insert it into the table. I have already written a procedure to do the inserting and that works fine. I just want to validate it before calling the insert. Any ideas? The fields to be validated on the form are textboxes containing date time which populate as read only after the time selection is chosen from dropdown.
Thanks in advance It's greatly appreciated.
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Jan 23, 2008
Hi All,
I receive the input file with some 100 columns and some 20k+ rows and I want to check the incoming input row is existed in the database or not based on 2 key columns. If the row is existed then I need to check all the columns (nearly 100 columns) values in input and the database are equal or not. If both are equal I need to treat them seperately if not there is a seperate logic. How Can I do that check for each row and for each column?
Basically the algorithm is like this, if the input file row is not existed in the database then treat that as new row else if the input row is existed in the database then check all the columns are equal or not. If all the columns are equal then treat that as existing row and do nothing else if some columns are not equal then treat this row seperately.
I found some thing to achieve the above thing.
1. Take the input row and check in the database.
2. If the row is not found in the database then treat it as new row.
3. If row is found in the database then
a) Take the source row and prepare a concatenated string for all the columns
b) Take the database row and prepare a concatenated string for all the columns
c) Find out the hash code for the 2 strings and then compare hash codes for equal.
The disadvantage of this is running a loop 2*m*n times where m is the number of rows and n is the number of columns. It should be done 2 times for input file row and database row.
Can anybody suggest a good method to do this?
What does the function "GetHashCode" for InputBuffer in method "Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)" will do?
Will it generates hash code based on all the columns values?
Pls clarify.
Regards
Venkat.
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Feb 20, 2006
Windows XP
SQL Expresss 2005
SQL Express 2005 Manager
I simply want to edit and data I have in a database that I made with Express Manager. This worked before .Net 2.0. Now, I have the table displayed as a datagrid with an "edit" pushbutton associated with each row in the database table. When I click on the "edit" pushbutton to edit a specific row in the database table, instead of posting me to a page where the chosen row is editable, I am posted back to the same page without the chosen row availible to be edited.
What am I doing wrong? How can I fix this? I am totally new to this so any help would be appreciated.
Cheers!
<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="iso-8859-1" EnableEventValidation="false" %><%@ Register TagPrefix="MM" Namespace="DreamweaverCtrls" Assembly="DreamweaverCtrls,version=1.0.0.0,publicKeyToken=836f606ede05d46a,culture=neutral" %><MM:DataSet id="dsParts"runat="Server"IsStoredProcedure="false"ConnectionString='<%# System.Configuration.ConfigurationSettings.AppSettings["MM_CONNECTION_STRING_PartsAreUs"] %>'DatabaseType='<%# System.Configuration.ConfigurationSettings.AppSettings["MM_CONNECTION_DATABASETYPE_PartsAreUs"] %>'CommandText='<%# "SELECT * FROM dbo.Parts" %>'Debug="true"> <EditOps> <EditOpsTable Name="dbo.Parts" /> <Parameter Name="Name" Type="VarChar" /> <Parameter Name="Description" Type="NVarChar" /> <Parameter Name="Price" Type="Money" /> <Parameter Name="PartID" Type="Int" IsPrimary="true" /> </EditOps></MM:DataSet><MM:PageBind runat="server" PostBackBind="true" /><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Untitled Document</title></head><body><form runat="server"> <asp:DataGrid id="dgParts" runat="server" AllowSorting="False" AutoGenerateColumns="false" CellPadding="3" CellSpacing="0" ShowFooter="false" ShowHeader="true" DataSource="<%# dsParts.DefaultView %>" PagerStyle-Mode="NextPrev" DataKeyField="PartID" onCancelCommand="dsParts.OnDataGridCancel" onEditCommand="dsParts.OnDataGridEdit" onUpdateCommand="dsParts.OnDataGridUpdate" onItemDataBound="dsParts.OnDataGridItemDataBound" > <HeaderStyle HorizontalAlign="center" BackColor="#E8EBFD" ForeColor="#3D3DB6" Font-Name="Verdana, Arial, Helvetica, sans-serif" Font-Bold="true" Font-Size="smaller" /> <ItemStyle BackColor="#F2F2F2" Font-Name="Verdana, Arial, Helvetica, sans-serif" Font-Size="smaller" /> <AlternatingItemStyle BackColor="#E5E5E5" Font-Name="Verdana, Arial, Helvetica, sans-serif" Font-Size="smaller" /> <FooterStyle HorizontalAlign="center" BackColor="#E8EBFD" ForeColor="#3D3DB6" Font-Name="Verdana, Arial, Helvetica, sans-serif" Font-Bold="true" Font-Size="smaller" /> <PagerStyle BackColor="white" Font-Name="Verdana, Arial, Helvetica, sans-serif" Font-Size="smaller" /> <Columns> <asp:EditCommandColumn ButtonType="PushButton" CancelText="Cancel" EditText="Edit" HeaderText="Edit" UpdateText="Update" Visible="True"/> <asp:BoundColumn DataField="PartID" HeaderText="PartID" ReadOnly="true" Visible="True"/> <asp:BoundColumn DataField="Name" HeaderText="Name" ReadOnly="false" Visible="True"/> <asp:BoundColumn DataField="Description" HeaderText="Description" ReadOnly="false" Visible="True"/> <asp:BoundColumn DataField="Price" HeaderText="Price" ReadOnly="false" Visible="True"/> </Columns> </asp:DataGrid></form></body></html>
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Feb 27, 2008
Hi,I m using vwd2005 and sql express,c#.I have a question here.In my database i have a table named Table1(id,name,age,country,email,phone) The values for these fields are inserted from the webform.Id is auto generated.name and age is passed from the textbox within the webform.country is passed from dropdownlist within the webform.email and phone is passed from listbox(multiple email and phone) within the webform.Now my problem is i want to retrieve all these row values back into the textboxes,dropdownlist and listbox at the same timeon the click of the retrieve button within the web form . Further more i want to make few changes on it and update the database on the click of another button update within the form.I hope u are getting it.How would the query would be in this case.?can u demonstrate the concept in one simple running example along with code?thanks.jack.
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Mar 25, 2008
Hello Everyone,I 've trying to retreive data back into webform from the database from past couple of weeks.But i m not able to retrieve it completely.Here is my scenario.I've tried to explain in detail but in simple language.I hope u will get my point.Ok here it is.plz run my code:-i have three tables in sql.they are:-grup(id,grp) (1,abc) (2,xyz) organization(id,oid,gid,organisation,orgphone) (1,1,1,ibm,1234567) (2,1,2,microsoft,6543210) (3,2,1,oracle,7654323) (4,2,2,apple,9876543) userform(id,title,name,address,email,organizationid) (1,mr,jack,usa,jack@jack.com,1) userform.aspx page<%@ Page Language="C#" AutoEventWireup="true" CodeFile="userform.aspx.cs" Inherits="userform" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>Untitled Page</title></head><body> <form id="form1" runat="server"> <div> <div style="text-align: center"> <table> <tr> <td style="width: 100px"> Title</td> <td style="width: 100px"> <asp:DropDownList ID="DropDownList1" runat="server"> <asp:ListItem>mr</asp:ListItem> <asp:ListItem>miss</asp:ListItem> <asp:ListItem>ms</asp:ListItem> </asp:DropDownList></td> </tr> <tr> <td style="width: 100px"> Name</td> <td style="width: 100px"> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></td> </tr> <tr> <td style="width: 100px"> Add</td> <td style="width: 100px"> <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox></td> </tr> <tr> <td style="width: 100px; height: 26px;"> Email</td> <td style="width: 100px; height: 26px;"> <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox></td> </tr> </table> </div> </div> <div style="text-align: center"> <div> <div> <asp:ScriptManager ID="ScripManager1" runat="server"> </asp:ScriptManager> <div> <table> <tr> <td style="width: 100px"> Group</td> <td style="width: 100px">
<asp:DropDownList ID="ddl1" runat="server" AutoPostBack="true"
OnSelectedIndexChanged="ddl1_SelectedIndexChanged"> </asp:DropDownList></td> </tr> </table> </div> <div> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <table> <tr> <td> Organisation </td> <td>
<asp:DropDownList ID="ddl2" runat="server" AutoPostBack="true"
OnSelectedIndexChanged="ddl2_SelectedIndexChanged"> </asp:DropDownList> </td> </tr> <tr> <td> org-phone </td> <td> <asp:TextBox ID="TextBox4" runat="server"></asp:TextBox> </td> </tr> <tr> <td> </td> <td>
<asp:TextBox ID="TextBox5" runat="server"
Width="45px"></asp:TextBox></td> </tr> </table> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="ddl1" EventName="SelectedIndexChanged" /> </Triggers> </asp:UpdatePanel> <br /> <table> <tr> <td style="width: 100px"> <asp:Button ID="Button1" runat="server" Text="save" OnClick="Button1_Click" /> </td> <td style="width: 100px"> <asp:Button ID="Button3" runat="server" Text="update" /></td> <td style="width: 100px"> <asp:Button ID="Button2" runat="server" Text="cancel" /></td> </tr> </table> </div> </div> </div> </div> </form></body></html>userform.cs page public partial class userform : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { AssignDDLDataSource(); ddl1_SelectedIndexChanged(null, null); } } private void AssignDDLDataSource() { // SqlConnection string sqlQry = "SELECT GRP DISPMEM, ID VALMEM FROM GRUP"; SqlCommand cmd = new SqlCommand(sqlQry, con); ddl1.DataSource = cmd.ExecuteReader(); ddl1.DataTextField = "DISPMEM"; ddl1.DataValueField = "VALMEM"; ddl1.DataBind(); } protected void ddl1_SelectedIndexChanged(object sender, EventArgs e) { AssignSubjectDDL(ddl1.SelectedValue); } private void AssignSubjectDDL(string val) { // SqlConnection string sqlQry = "SELECT ORGANISATION DISPMEM, GID VALMEM FROM ORGANIZATION where OID = '" + val + "'"; SqlCommand cmd1 = new SqlCommand(sqlQry, con); ddl2.DataSource = cmd1.ExecuteReader(); ddl2.DataTextField = "DISPMEM"; ddl2.DataValueField = "VALMEM"; ddl2.DataBind(); ddl2_SelectedIndexChanged(null, null); } protected void ddl2_SelectedIndexChanged(object sender, EventArgs e) { AssignTextBoxValues(ddl1.SelectedValue, ddl2.SelectedValue); } private void AssignTextBoxValues(string teamval, string memval) { // SqlConnection
string sqlQry = "Select ID,ORGANISATION,ORGPHONE from ORGANIZATION
where OID = '" + teamval + "' AND GID = '" + memval + "'"; SqlCommand cmd = new SqlCommand(sqlQry, con); SqlDataReader rdr = cmd.ExecuteReader(); while (rdr.Read()) { TextBox5.Text = rdr["ID"].ToString().Trim(); TextBox4.Text = rdr["ORGPHONE"].ToString().Trim(); } } protected void Button1_Click(object sender, EventArgs e) { // SqlConnection
string sqlQry = "INSERT into USERFORM (title, name, address, email,
organizationid) VALUES(@title,@name,@address,@email,@organizationid)"; SqlCommand cmd = new SqlCommand(sqlQry, con); cmd.CommandType = CommandType.Text; cmd.Parameters.AddWithValue("title", DropDownList1.SelectedValue.Trim()); cmd.Parameters.AddWithValue("name", TextBox1.Text); cmd.Parameters.AddWithValue("address", TextBox2.Text); cmd.Parameters.AddWithValue("email", TextBox3.Text); cmd.Parameters.AddWithValue("organizationid", TextBox5.Text); cmd.ExecuteNonQuery(); Response.Redirect("detailsview.aspx"); }} detailsview.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeFile="detailsview.aspx.cs" Inherits="detailsview" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>Untitled Page</title></head><body> <form id="form1" runat="server"> <div> <asp:DetailsView ID="DetailsView1" runat="server" AllowPaging="True" EnablePagingCallbacks="True" Height="50px" HorizontalAlign="Center" Width="125px"> </asp:DetailsView> </div> </form></body></html> detailsview.cspublic partial class detailsview : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { //SqlConnection
string str = "select title,name,address,email,grp,organisation,orgphone
from userform as a inner join organization as b on
a.organizationid=b.id inner join grup as c on b.oid=c.id"; SqlDataAdapter oda = new SqlDataAdapter(str, conn); conn.Open(); DataSet ods = new DataSet(); oda.Fill(ods, "info"); DetailsView1.DataSource = ods.Tables["info"].DefaultView; DetailsView1.DataBind(); }}My problem :-Now when user fills up the userform and clicks the save button the details are shown in the details view.Now i want to add a Edit hyperlink next to the records in the detailsview so that when i click on it i would be redirected to userform.aspx form with all the textboxes,dropdownlist etc be populated from the related data from the database.(here table userform).Now i want to edit these data in the userform.aspx page and finally when i click the update button at end i want all the data be updated in the database aswell as in details view too.at the same time i want this form to redirect to detailsview.aspx .i hope ur getting it?i m able to do partial part only.Not completely. So can u now help me modify the code accordingly?Thanks in advance.Jack.
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Jun 9, 2006
I'm having a problem retrieving information from two different tables. Everytime i run a query which i type a source id into a textbox my page keeps timing out. What could be the problem? The tables i'm pulling from is profiles and phone. Here is the code. If someone could tell me what's going on id apperciate it. Thanks!
Dim queryString As String = "SELECT [profiles].[date_added], [profiles].[source_id], [RP_profiles].[fnam"& _"e], [profiles].[lname], [profiles].[title], [phone].[number], [RP_phone"& _"].[source_id] FROM [profiles], [phone] WHERE ([profiles].[source_id] = "& _"@source_id)"
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Aug 3, 2007
Can someone help with this? Let me know if what I'm trying to do is possible...
Here's code example:
@ClientID int,
@QuoteID int,
@Base real,
@One real,
@DwellingLimit real
AS
BEGIN
Insert Into tblOne(ClientID,QuoteID,GuideID,GuideRate,GuideMult,Premium)
Select @ClientID, @QuoteID, GuideID,GuideRate, @+"GuideMult"+,GuideRate*GuideMult
From tblTwo
Where Choose = 'True';
END
I need the value stored in tblTwo.GuideMult (ie. One, BaseRate) to be translated
into the numerical value shown on a webform (ie. @One, @BaseRate) and then
insert the numerical values into tblOne.GuideMult
Clear as mud? Does somebody have a better way to do this?
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Mar 30, 2007
Hello all,
I am having problems running a stored proc from an aspx.cs file. Basically I want to extract data from webForm controls and create a new record in a DB table. I have watched the "Getting Started" videos on thi site, and the only difference between my code and the code of the demonstrator is the connection string. My conn string:- dataSrc.ConnectionString = ConfigurationManager.ConnectionStrings["ProjectTblConnString"].ConnectionString;Demonstrator conn string:- dataSrc.ConnectionString = ConfigurationManager.ConnectionStrings("ProjectTblConnString");When I debug with the string as shown by the demonstrator the error list reports that ConnectionStrings is a property and I am trying to use it as a mothod, which is fair enough, but I am just confused as how it worked for the demonstrator and not myself. When I debug with the code I used above I get no error, but nothing is inserted in the DB.Also, it looks as if the only class in my aspx.cs file that is actually being executed is PageLoad() - the remainder of the code seems to be ignored. Below is the entired aspx.cs file:- 1 using System;
2 using System.Data;
3 using System.Configuration;
4 using System.Collections;
5 using System.Web;
6 using System.Web.Security;
7 using System.Web.UI;
8 using System.Web.UI.WebControls;
9 using System.Web.UI.WebControls.WebParts;
10 using System.Web.UI.HtmlControls;
11
12 public partial class CreateProject : System.Web.UI.Page
13 {
14 protected void Page_Load(object sender, EventArgs e)
15 {
16
17 if (User.Identity.IsAuthenticated == false)
18 {
19 Server.Transfer("Default.aspx");
20 }
21
22 if (chkbox_startDate.Checked == true)
23 {
24 txtbox_startDate.ReadOnly = true;
25 txtbox_startDate.Text = (System.DateTime.Now.ToString());
26 }
27
28 }
29
30 protected void btn_create_Click(object sender, EventArgs e)
31 {
32 //connection string for connecting to SQL Server DB
33 SqlDataSource dataSrc = new SqlDataSource();
34 dataSrc.ConnectionString = ConfigurationManager.ConnectionStrings["ProjectTblConnString"].ConnectionString;
35
36
37 //insert data in table using the CreateNewProject stored proc in the DB
38 dataSrc.InsertCommandType = SqlDataSourceCommandType.StoredProcedure;
39 dataSrc.InsertCommand = "CreateNewProject";
40 dataSrc.InsertParameters.Add("Project_Title", txtbox_title.ToString() );
41 dataSrc.InsertParameters.Add("Description", txtbox_desc.ToString() );
42 dataSrc.InsertParameters.Add("Start_Date", txtbox_startDate.ToString() );
43 dataSrc.InsertParameters.Add("Primary_Dev_Lang", list_devLang.ToString() );
44 dataSrc.InsertParameters.Add("Dev_Environment", list_devEnv.ToString() );
45 dataSrc.InsertParameters.Add("No_Junior_Devs", txtbox_juniorDevs.ToString() );
46 dataSrc.InsertParameters.Add("No_Senior_Devs", txtbox_seniorDevs.ToString() );
47
48 int rowsAffected = 0;
49 try
50 {
51 rowsAffected = dataSrc.Insert();
52 }
53 catch (Exception ex)
54 {
55 Server.Transfer(Error.aspx);
56 }
57 finally
58 {
59 dataSrc = null;
60 }
61
62 if (rowsAffected != 1)
63 {
64 label_confirm.Text = "Error, Contact system admin";
65 }
66 else
67 {
68 label_confirm.Text = "Success";
69 }
70
71 }//end btn_create
72
73 //if cancel is clicked set all values back to default
74 protected void btn_cancel_Click(object sender, EventArgs e)
75 {
76 txtbox_title.Text = "";
77 txtbox_desc.Text = "";
78 txtbox_startDate.Text = "";
79 txtbox_seniorDevs.Text = "";
80 txtbox_juniorDevs.Text = "";
81 list_devEnv.SelectedIndex = 0;
82 list_devLang.SelectedIndex = 0;
83 chkbox_startDate.Checked = true;
84 label_confirm.Text = "";
85 }
86
87 //if checked the current dateTime is inserted into txtbox
88 protected void chkbox_startDate_CheckedChanged(object sender, EventArgs e)
89 {
90 if (chkbox_startDate.Checked == true)
91 {
92 txtbox_startDate.ReadOnly = true;
93 txtbox_startDate.Text = (System.DateTime.Now.ToString());
94 }
95 else
96 {
97 txtbox_startDate.ReadOnly = false;
98 txtbox_startDate.Text = "";
99 }
100 }//end chkox
101
102
103 }//end class
Any help anyome can give is greatly appreciated. This is part of my Final Year College Dissertation which is due in 3wks !!!!
Sláinte á chaire,
Seán
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Oct 21, 2007
HiI have a VB.net web page which generates a datatable of values (3 columns and on average about 1000-3000 rows).What is the best way to get this data table into an SQL Server? I can create a table on SQL Server no problem but I've found simply looping through the datatable and doing 1000-3000 insert statements is slow (a few seconds). I'd like to make this as streamlined as possible so was wondering is there is a native way to insert all records in a batch via ADO.net or something.Any ideas?ThanksEd
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Nov 19, 2007
Hi,
I would like to know how to call a report from a report viewer control in a web application. The reporting services is forms authenticated. I've done this authentication using the sample solution given by microsoft (adding custom security extension). Now am able to view the reports from Report manager and Report server URL. But i dont know how to authenticate the user from my web application and pass the credentials to the report server to view the report in report viewer control. Can somebody help in this? its bit urgent. Thanks in advance
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Apr 10, 2008
I am trying to use the Import Wizard to setup a daily job to import new records based on an ID field (PK). The source database is remote and a replica. I am inserting new records to update my table called the same thing. Both are SQL Native Client
Code Snippet
select *
from [CommWireless].[dbo].[iQclerk_SaleInvoicesAndProducts] as S1
join [IQ_REPLICA].[dbo].[iQclerk_SaleInvoicesAndProducts] as S2
on S1.SaleInvoiceID = S2.SaleInvoiceID
where S1.SaleInvoiceID > S2.SaleInvoiceID
When I parse the query, I keep getting an error message.
Deferred prepare could not be completed.
Statement(s) could not be prepared.
Invalid object name 'IQ_REPLICA.dbo.iQ_SaleInvoicesAndProducts'. (Microsoft SQL Native Client)
Anyone know an easy why to get this to work? Or should I add a create table to verify new records?
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Jun 20, 2007
hy, i wrote an input function to put some data in my database with click of button
it doesnt work and i cant find the mistake =/
anyone of you can help?
now theres one thing that isnt right, and that is that the datasiz of messagetext is set to max, and here i put it in to 50, cause dont know how to put it to max cause you can only put in ant integer
, also in the insert into, i did not put all of the columns cause the data i input is only for certain columns, ( don't think thats a problem)
Greetz
Roy1
2 Private mocon As clsAdocon
3 Dim naam As String
4 Dim type As String
5 Dim folder As String
6 Dim sUDL = ConfigurationManager.ConnectionStrings("masterConnectionString").ConnectionString
7
8 Protected Sub btnopslaan_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnopslaan.Click
9
10 folder = "Out"
11 Select Case True
12 Case rdbMail.Checked
13 type = "Mail"
14 Case rdbFax.Checked
15 type = "Fax"
16 Case rdbSms.Checked
17 type = "Sms"
18 End Select
19
20 If type = "Mail" Then
21 Dim strSql As String
22 strSql = "INSERT INTO Message(ToName, ToEmail, Subject, MessageText, TypeBericht, Folder) VALUES(@ToName,@ToEmail,@Subject,@MessageText,@TypeBericht,@Folder);"
23
24 Try
25 'connectie met database
26 Dim objCn As New SqlConnection(sUDL)
27 Dim objCmd As SqlCommand = objCn.CreateCommand()
28 objCmd.CommandText = strSql
29
30 objCmd.Parameters.Add("@ToName", SqlDbType.NVarChar, 50).Value = naam
31 objCmd.Parameters.Add("@ToEmail", SqlDbType.NVarChar, 50).Value = txtAan.Text
32 objCmd.Parameters.Add("@Subject", SqlDbType.NVarChar, 50).Value = txtOnderwerp.Text
33 objCmd.Parameters.Add("@MessageText", SqlDbType.NVarChar, 50).Value = txtbericht.Text
34 objCmd.Parameters.Add("@Folder", SqlDbType.NChar, 10).Value = folder
35 objCmd.Parameters.Add("@TypeBericht", SqlDbType.NChar, 10).Value = type
36
37 objCn.Open()
38 objCmd.ExecuteNonQuery()
39 objCn.Close()
40 Catch ex As Exception
41
42 End Try
43 End If
44
45 End Sub
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May 14, 2008
i am making a transaction function for my website, when people transfer an amount from account A to account B, it should check the amount if account A has enough money to transfer. here is my codes, should i add an if statement before the tra.update()? how to write this codes? SqlDataSource tra = new SqlDataSource(); tra.ConnectionString = ConfigurationManager.ConnectionStrings["shuliConnectionString"].ToString(); tra.UpdateCommand = "update account set balance=balance" + -Convert.ToDecimal(TextBox5.Text) + " where AccountNumber = '" + TextBox3.Text + "'"; tra.Update(); tra.UpdateCommand = "update account set balance=balance+" + Convert.ToDecimal(TextBox5.Text) + "where AccountNumber = '" + TextBox4.Text + "'"; tra.Update(); tra.InsertCommand = "insert into Transactions(TransactionType,AccountNumber,DestAccount,Amount,Comment,ModifyDate) values ('T','" + TextBox3.Text + "','" + TextBox4.Text + "','" + TextBox5.Text + "','" + TextBox2.Text + "','" + DateTime.Now.ToLocalTime() +"')"; int inertRowNum = tra.Insert(); Server.Transfer("deposit_withdraw_confirm.aspx");
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Jul 19, 2006
what is the best tool to compare to sql database structure and if i want to do it programaticaly by c# and sql smo is there any sample in this project
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Dec 21, 2006
Language : VB.NET
Database : MSSQLserver2000
i have developed a tool to compare two databases, but it is taking long time to compare. First it will take the whole table into main memory(order by primary key). Same procedure for table2 of second database. Then it will start comparison by taking row by row. i tested with one third party tool, which is taking only 2 min to compare 800000 records of a table. My tool is taking 1 hour,40 mins to do that. Is there any other optimized method?
Regards,
Loka
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Sep 11, 2006
Is there some recommended way to clean input before submitting it to the database? We'd like to develop a library that can be used on our ASP/ASP.NET apps to filter input before it's sent to the SQL Server and Oracle databases. Is there a way to create a .NET DLL that can be used for both ASP.NET and classic ASP apps. Thanks.
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Aug 16, 2000
My name is Syed Kamran Ahmed and i'm an ASP
Programmer. I've got a problem with entering values in
database from ASP page, if i use apostropy in a text
box and then passes values to Sql server store
Procedures then it will give following error:
Error Type:
Microsoft OLE DB Provider for SQL Server
(0x80040E14)
Line 1: Incorrect syntax near 's'.
my calling store procedure syntax is:
rsinsert_products.Open "exec sp_insert_products
'"&vPdescription&"',dbc,
adOpenDynamic ,adLockOptimistic .
Where vPdescription contains kamran's home.
Please tell me how i'm gonna put "'" in database from
above method.
Thanx.
Kamran Ahmed
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Aug 17, 2000
I want to put HTML code in my ASP form and then input in to a database in SQL SERVER 7.0, but due to some syntax problems i can't be able to do it.
Please tell me how i'm gonna input a typical HTML code in Database field.
Thanx.
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Feb 8, 2007
Hello everyone, I am new to mssql so please excuse all my silly questions.
I can create databases and tables. This is fairly easy, now I am having trouble with inputting data into the database using the data entry browser (or whatever it is called to enter data directly into a table).
I usually get an error when trying to submit the entry, firstly I have a "id" field which I think I have set to auto increase (Identity is ticked, seed and increment is set to 1).
when I go to add data all fields have "Null" in them and from what I understand it allows the fields to be empty, except the primary key which is the id field in this case and I expect that to be filled in automatically like with mysql but isn’t.
Can some kind person instruct or direct me somewhere on how to enter data into a table without it failing.
Thanks in advanced for any information provided.
Stealth549
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Oct 3, 2006
I have one databaseand I create new database by copy everything from first db I then alter some column on new database and now I would like to compare two databaseHow can I do it ?
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Nov 17, 2006
We're using Sql Server 2000. The one database contained tables and stored procedures which were possibly updated with some script information. Is there an application(commercial or free) or script I can use to compare the base database against this updated database to confirm there schema information is the same.
Thanks
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Jan 11, 2008
Here's my scenario. I've got an web site that is going to allow access across two different domains. So I pull out the user name and domain with a split. At that point I want to say If user name = a value in bug_user table then redirect ~default.aspx Else redirect to other page. I'm kind of stuck. Here is what I got so far. Imports System.DataImports System.Data.SqlClientPartial Class MasterPage Inherits System.Web.UI.MasterPage Sub page_load() Dim user As System.Security.Principal.IPrincipal user = System.Web.HttpContext.Current.User Dim username As String username = user.Identity.Name Dim namer As String Dim domain As String Dim firstname As String namer = username.Split("")(1) domain = username.Split("")(0) Dim objcon As ConnectionStringSettings = ConfigurationManager.ConnectionStrings("bug_trackerConnectionString") Dim str As String = objcon.ConnectionString Dim con As New SqlConnection(str) Dim com As New SqlCommand("", con)?????????????????????????? con.Open() com.commandText = "Select FirstName, LastName, Userid, Domain from bug_user" con.Close()??????????????????????? Between the question marks is where i start to get lost. I don't know how to look into the column Userid in the table bug_user table to see if my variable namer is present and I don't know where I should start my if statement. Thank for your help.
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May 15, 2008
How could i compare value or string in my database with text in textbox1 before i inserted in the same database ?
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Jun 21, 2005
Can anyone recommend any utilities which compare 2 databases and report on the differences? A developer would like to compare the before/after images of a database once an upgrade has been applied.
He has looked at Red Gate ( http://www.red-gate.com/SQL_Data_Compare.htm ) and would like any recommendations about this product or any other.
Thanks.
Joseph
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Jul 20, 2005
Let us suppose that I have two similar databases and need to create ansql-script upgrating one database structure to another. For example, thesedatabases are from different versions of some software, first is from earlyversion, next is from current, and second one contains several new tables,sevelal new fields in old tables, several new or changed stored procedures,UDFs and so on.How to solve this problem using standard tools?
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May 23, 2007
Greetings All,
I have a SQL Server 2005 DB that contains a version number that is specific to its schema. I have an SSIS package that performs an export/import of user data. I need to be able to compare the DB version number of both the target and the source database before the migrate operation can continue. Does anyone know if there is a Control Flow Task (or some other task) to do such a thing or will I need to write a custom Script Task?
Any help at all would be greatly appreciated.
Thanks!
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Mar 6, 2008
hi there..
I have write a code in the submit button using vb code so that when people key in their email.. it will be saved in my created database called test.mdf. but when i debug it, i tried to write an my email address in the textbox in my website but when i click at the submit button, the web page display the email was not enter in my database.
here is the code, can anybody help me. i'm really lost here..
Protected Sub SubmitButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim TestDataSource As New SqlDataSource()TestDataSource.ConnectionString = ConfigurationManager.ConnectionStrings("TestConnectionString1").ToString()
TestDataSource.InsertCommandType = SqlDataSourceCommandType.Text
TestDataSource.InsertCommand = "INSERT INTO Email(EmailAddress, IPAddress, DateTimeStamp) VALUES (@EmailAddress,@IPAddress,@DateTimeStamp)"
TestDataSource.InsertParameters.Add("EmailAddress", emailAddressTextBox.Text)
TestDataSource.InsertParameters.Add("IPAddress", Request.UserHostAddress.ToString())TestDataSource.InsertParameters.Add("DateTimeStamp", DateTime.Now())
Dim rowsAffected As Integer = 0
Try
rowsAffected = TestDataSource.Insert()
Catch ex As Exception
Server.Transfer("test_problem.aspx")
Finally
TestDataSource = Nothing
End Try
If rowsAffected <> 1 ThenServer.Transfer("test_problem.aspx")
ElseServer.Transfer("Test_Confirm.aspx")
End If
End Sub
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Dec 6, 2005
I tried matching the input username with the database. Although
the input value is the same as the database, but it doesnt goes into
the if statement to increase the "stat" value. Please advise what went
wrong. Thanks.
protected void btnEnter_Click(object sender, EventArgs e)
{
if (txtUsername.Text.Length > 0)
{
status++;
Label3.Text = "";
}
else
{
Label3.Text = "Please enter a username";
}
if (txtPassword.Text.Length > 0)
{
status++;
Label4.Text = "";
}
else
{
Label4.Text = "Please enter a password";
}
if (status == 2)
{
int stat = 0;
string mySelectQuery = "SELECT * FROM users";
SqlConnection myConnection = new SqlConnection("Data
Source=WINSON-COMP;Initial Catalog=winson;Integrated Security=True");
SqlCommand myCommand = new SqlCommand(mySelectQuery, myConnection);
try
{
myConnection.Open();
SqlDataReader myReader = myCommand.ExecuteReader();
while (myReader.Read())
{
stat = 0;
string user = (string)myReader["username"];
string pass = (string)myReader["password"];
if (user == txtUsername.Text){
stat++;
}else {
Label3.Text = "Incorrect Username";
}
if (pass == txtPassword.Text){
stat++;
}else{
Label4.Text = "Incorrect Password";
}
if (stat == 2)
{
Server.Transfer("shopping.aspx");
}
}
myReader.Close();
}
finally
{
myConnection.Close();
}
}
}
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Jan 25, 2006
I have a problem selecting fields from a table where fields are equal to user input from a listbox. example
listbox of zip codes:
33023[red]22300[/red]39844[red]29339[/red]23883[red]38228[/red]
user wants to retreive highlight zip codes from database.connection working perfect.Thank you for your help.
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Jun 5, 2008
Hi
I am building a pretty simple intranet application where we need to be able to track changes to tables. The tracking feature do not need to be very advanced, we just need to see who changed something and what it was. Therefore I decided just to use a trigger based solution, but need some input/advice since my SQL skills is somewhat lacking.
Consider the following (mock-up) schema:
-- My content table
CREATE TABLE [Content](
[ContentGuid] [uniqueidentifier] NOT NULL PRIMARY KEY DEFAULT (newid()),
[Data] [nvarchar](4000) NOT NULL,
[ChangedBy] [nchar](10) NOT NULL,
[MaybeNull] [int] NULL
)
-- My history table
CREATE TABLE [History](
[ChangedTable] [nvarchar](50) NOT NULL,
[ReferenceGuid] [uniqueidentifier] NOT NULL,
[ChangedBy] [nchar](10) NOT NULL,
[ChangedOn] [datetime] NOT NULL DEFAULT (getutcdate()),
[IsDelete] [bit] NOT NULL DEFAULT ((0)),
[Changes] [xml] NOT NULL
) ON [PRIMARY]
-- My insert/update trigger
CREATE TRIGGER [RecordChangeOnInsertUpdate]
ON [Content]
AFTER INSERT,UPDATE
AS
BEGIN
SET NOCOUNT ON;
DECLARE @Changes xml
SET @Changes = (select * from [inserted] for xml raw ('Content'), elements xsinil)
INSERT INTO [History]
([ChangedTable]
,[ReferenceGuid]
,[ChangedBy]
,[ChangedOn]
,[IsDelete]
,[Changes])
SELECT 'Content', ContentGuid, ChangedBy, getutcdate(), 0, @Changes
FROM [inserted]
END
-- My delete trigger
CREATE TRIGGER [RecordChangeOnDelete]
ON [Content]
AFTER DELETE
AS
BEGIN
SET NOCOUNT ON;
DECLARE @Changes xml
SET @Changes = (select * from [deleted] for xml raw ('Content'), elements xsinil)
INSERT INTO [History]
([ChangedTable]
,[ReferenceGuid]
,[ChangedBy]
,[ChangedOn]
,[IsDelete]
,[Changes])
SELECT 'Content', ContentGuid, ChangedBy, getutcdate(), 1, @Changes
FROM [deleted]
END
I have decided to use the "one history table for all table changes" method. The changes for a row is stored in a xml column which obviously limits the total size of columns in a table being tracked, but that is not a problem in my application. In general I like this set up, since I will be able to change the schema continuously without having to change the triggers, and since the application will probably evolve a lot over the coming months this is pretty important to me.
EDIT: I should add that all the tables I will be tracking have a uniqueidentifier column. This makes it possible to related table rows in the different tables being tracked with their history.
A few concerns with the above SQL:
- Can the inserted/deleted table change between "SET @Changes = (select * ..." and the "INSERT INTO ..." statement, such that the data is not valid? If so, how to work around that?
- If I were to (hypothetically) perform a "UPDATE [Content] SET [Data] = 'something'", not only is my update trigger called once for each row updated, but the XML added to the inserted row in the history table ([History].[Changes]) represent all the rows updated in the batch update. How do I get around this?
Are there any other issues I should be aware of?
Regards, Egil.
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Apr 24, 2007
Hi
I am a very beginner in SQL and know a little bit VB.
I created a database table with two columns, one for key and the other for data. I'd like to update the data column using excel sheet which contains the same columns, key and data.
Does anyone have a sample VB code to share.
Thanks
Al
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Feb 28, 2000
We have three database server . Development, Test and Production. would appreciate if any body could receommend utilities/ways to compare apart from sqlcomp or ERWin
regards
rajeev
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May 28, 2014
I want to compare the database structures(columns,datatypes..etc) across same databases located in different servers.
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