dataset for data mining in excel

If exists (select * From DBO. sysobjects where id = object_id (n' [DBO]. [p_exporttb] ') and objectproperty (ID, n' isprocedure') = 1)Drop procedure [DBO]. [p_exporttb]Go /* -- Data export ExcelExport the queried data to excel, including the field name. The file is a real Excel file.If the file does not exist, the file

Use excel for data mining (1)Use excel for data mining (1) After configuring the environment, you can use excel for data mining. For environment configuration problems, see: Http://blog.csdn.net/xinxing__8185/article/details

excel|server|sqlserver| Data Writing program, put the appendix of the Excel file (experimental questions Annex 1) class 03 student list. xls or (appendix 2 of the Experiment) the performance registration form. xls) is imported into the SQL SERVER2000 database. Requirements: 1. Excel file as

A batch import is required for the graduation project. Errors during this period have been debugged for quite a long time, especially excelconnstring. Pay special attention to the absence of any errors. Note: I used excel2007 here. String Path = fpimport. postedfile. filename; // Fpimport is the name of the control I use // String filename = fpimport. postedfile. filename. substring (fpimport. postedfile. filename. lastindexof ("\\")); String filename = system. Io. Path. getfilename

OpenFileDialog OpenFileDialog = new OpenFileDialog (); Openfiledialog.filter = "Microsoft Excel files (*.xls) |*.xls;*.xlsx";//filter, as long as the table format Openfiledialog.initialdirect Ory = "c:\\"; Openfiledialog.restoredirectory = true; Openfiledialog.filterindex = 1; Openfiledialog.addextension = true; Openfiledialog.checkfileexists = true; Openfiledialog.checkpathexists = tru

In csdn, people often ask how to open an Excel database file. This article through a simple example, the realization reads the Excel data file. First, create a Web application project, and add a DataGrid control, a file control, and a button control to the Web page. Copy Code code as follows: Import the OLE DB namespace first in Code view:

Public stringExportexcel (DataSet ds,stringsavefilename) { Try { if(ds = =NULL) return "the database is empty"; BOOLfilesaved =false; Microsoft.Office.Interop.Excel.Application xlapp=NewMicrosoft.Office.Interop.Excel.Application (); if(xlapp = =NULL) { return "Unable to create Excel object, may not have

public class Exportasexcel {Final Logger Logger = Loggerfactory.getlogger (GetClass ());Static SimpleDateFormat dateformat=new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");/*** Common components, export Excel tabular data method * Usage: Data is list* It also supports format like date, that is, the field type in the full support database* @author Pery* @param the cla

C # export Datatable data to an Excel table, Public FileResult GetExcelFile (){If (Session ["beginDate"]! = Null){String bdate = Session ["beginDate"]. ToString ();DateTime ld = Convert. ToDateTime (Session ["lastDate"]. ToString ());DateTime ldate = ld. AddDays (1 );String lldate = ldate. ToString ("yyyy-MM-dd ");Int ptkey = Convert. ToInt32 (Session ["Process_PTR"]);String proceSql = "select * from Assay_

excel| Export Data----------vb.net export data to Excel------------- Dim oexcel as New excel.application Dim obook as Excel.Workbook Dim osheet as Excel.Worksheet Dim DataArray as Integer obook = OExcel.Workbooks.Open ("C:\1.xls") osheet = obook. Worksheets (1) Osheet.name = "OK" Dim Myadapter as New oledb.oledbdataad

You can set the cell format in Excel.If the format is different from the format of the input data, the data cannot be read. For example, I have set the format of a cell column to date.If the data I entered is indeed in the date format, such as 2002-1-1 1, it can be correctly read.However, if the data I input is not in

It is not difficult to export to an Excel file, so there are many methods: the control directly render, the dataset output into a string and then write it out (of course, if you call ExcelProgramYou can also use a stronger method to directly operate Excel files, but this method is too demanding for Web Services: you must have the Web server install a specified ve

Private datatable loadsalesdata (){// Load data from XML file.Dataset dataset = new dataset ();Dataset. readxml (@ "C: \ reports \ data. xml ");Return dataset. Tables [0];}Public form1 (){Initializecomponent ();} Private void form

= "file size:" + (inputfile. postedfile. contentlength/1024). tostring () + "K byte (s )";}Else{Labelupresult. Text = "select the file you want to upload! ";Labelfilename. Text = "";Labelfileext. Text = "";Labelfilesize. Text = "";} } Private void button2_click (Object sender, system. eventargs E){Sqlconnection conn = new sqlconnection (configurationsettings. etettings ["DSN"]);// Connect to the Excel Data

Today, I am working on a program that needs to read data from an Excel table. There are not many items on the Internet. Now I want to write the implementation method for your convenience. In fact, the method is very simple, but there are few Chinese articles to say this.Prerequisites: The table in your Excel file must be like a "table" instead of a complex table

);Application.exit ();}Finally{if (excelconn.state = = ConnectionState.Open)Excelconn.close ();}Set query commandOleDbDataAdapter mycommand = new OleDbDataAdapter ("SELECT * from [sheet1$]", excelconn);DataSet ds = new DataSet ();To execute the query Excel table commandTry{Mycommand.fill (ds, "exceltable");}catch (Exception ex){MessageBox.Show ("The name of the w

(short I = 0; I OK. The above is over. You can test it by changing the data marked with red in the font to your own data set.Let's take a look: The above is fine. Is it very simple? Yes, it is very simple. Since everyone knows the principle and how to implement it, what I want to say below is that if each column is not sure, what should I do? Of course, not everyone needs to do this. Not every proje

Although it is a congestion model, although it is a strong type, xcode also supports traversing any database structure and reading data in a strong type (compared to dictionary access such as dataset) mode. It is easy to traverse the database structure, and most ORM supports it. However, it is a little complicated to read data in a strongly typed manner witho

(1). Running example Diagram 1. The gridview diagram of the data to be exported: 2. generated Excel File (2 ).Code 1. gridviewtoexcelfile. aspx code on the front-end page: 1 Enableeventvalidation = "false" Codefile = "gridviewtoexcelfile. aspx. cs" inherits = "_ default" %> 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 text = "create excel" w

(1). Running example Diagram 1. The gridview diagram of the data to be exported: 2. generated Excel File (2). Code 1. gridviewtoexcelfile. aspx code on the front-end page:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 text = "create excel" width = "137px"/> 22 23 24 25 2. The page Background File gridviewtoexcelfile. aspx. CS code:1 using system; 2 using