using dataset objects to store data

... SQLCommand objects, and the Execute method to get data into a DataReader DataSet Objects The DataSet is designed to handle the actual data from a data store The DataSet provides a rich object model to ... representing the data contained in the table You use the ADODataSetCommand and SQLDataSetCommand objects and the FillDataSet method to get data into DataSets DataView Objects DataView provides a custom view ... Module 3: Using ADO.NET to Access Data Using DataViews Topic Objective To explain the role of DataViews in accessing data from a database by using DataSets Lead-in To access data from a DataSet, ...

Ngày tải lên: 27/10/2013, 07:15

... ordering Exercise Convert vector data to grid format The objective of this exercise is to learn how to convert vector data, the Rivers.shp theme, into a grid theme of raster data During the conversion ... coordinate to that location When to use raster In some analyses, raster data is more appropriate than vector data Depending on the analysis you're performing, however, vector or raster data or both ... least-cost path, you should use raster data By assigning measurements to each cell, a least-cost path can be determined between objects of interest With a vector dataset, only the lines in the network...

Ngày tải lên: 21/10/2014, 10:10

... DataSet ds; // private void XPathQueryForm_Load(object sender, System.EventArgs e) { ds = new DataSet( "Orders_OrderDetails"); SqlDataAdapter da; // Fill the Order table and add it to the DataSet ... access the XmlDataDocument to perform certain functionality more conveniently than could be accomplished using the DataSet directly To execute an XPath query against the contents of a DataSet, call ... the topics "Guidelines for Using XPath Queries" and "Using XPath Queries." In NET, the DataSet is synchronized with the XmlDataDocument As a result, in some cases XML services can be used to access...

Ngày tải lên: 26/01/2014, 10:20

... Mapping Your Objects to Database Tables with LINQ to SQL Table of Contents Mapping Your Objects to Database Tables with LINQ to SQL Exercise Creating Your First LINQ TO SQL Application ... 27 Mapping Your Objects to Database Tables with LINQ to SQL Mapping Your Objects to Database Tables with LINQ to SQL Objectives Scenario Estimated Time to Complete This Lab After completing ... class to map to the Customer table by entering the following code Page of 27 Mapping Your Objects to Database Tables with LINQ to SQL Tasks Customers Detailed Steps in Program.cs (put the Customer...

Ngày tải lên: 06/08/2013, 17:30

... DataRow objects from your DataSet, and then call the Update() method of your DataAdapter, the appropriate stored procedure is run to push your changes to the database Let's take a look at how to set ... method to retrieve rows from the Products table into a DataSet Before you can push changes to the database, you must set the InsertCommand, UpdateCommand, and DeleteCommand properties of your DataAdapter ... SET NOCOUNT ON if you need to perform an INSERT, UPDATE, or DELETE statement before the main SQL statement in your stored procedure Setting Up a DataAdapter to Call Stored Procedures As mentioned...

Ngày tải lên: 14/12/2013, 13:15

... creates a DataSet object named myDataSet and populates it by calling mySqlDataAdapter.Fill(): DataSet myDataSet = new DataSet( ); mySqlConnection.Open(); int numOfRows = mySqlDataAdapter.Fill(myDataSet, ... DataRow in a DataTable." The following method, named AddDataRow(), uses those steps to add a new row to a DataTable: public static int AddDataRow( DataTable myDataTable, SqlDataAdapter mySqlDataAdapter, ... myNewDataRow has been added to myDataTable Finally, mySqlDataAdapter.Update() is called to push the new row to the database The AddProduct4() stored procedure is run to add the new row to the...

Ngày tải lên: 14/12/2013, 13:15

... table with Orders DataTable dt = new DataTable( ); da.Fill(dt); // Bind the default view of the table to the grid dataGrid.DataSource = dt.DefaultView; cancelButton.Enabled = true; dataGrid.ReadOnly ... SqlCommand(sqlText, conn, tran); // Create a DataAdapter to retrieve all Orders SqlDataAdapter da = new SqlDataAdapter(cmd); // Define a CommandBuilder for the DataAdapter SqlCommandBuilder cb = new ... connection tran.Rollback( ); conn.Close( ); // Unbind the grid dataGrid.DataSource = null; startButton.Enabled = true; } private void UsingLockingHintsForPessimisticLockingForm_Closing( object sender,...

Ngày tải lên: 14/12/2013, 18:16

... 1: create a DataSet object and fill it with the top rows // from the Customers table DataSet myDataSet = new DataSet( ); mySqlConnection.Open(); mySqlDataAdapter.Fill(myDataSet, "Customers"); mySqlConnection.Close(); ... DisplayDataRows(DataTable myDataTable) { Console.WriteLine("\n\nCustomer DataRow objects in customersDT:"); foreach (DataRow myDataRow in myDataTable.Rows) { foreach (DataColumn myDataColumn in myDataTable.Columns) ... USINGXMLDATADOCUMENT.CS /* UsingXmlDataDocument.cs illustrates how to use an XmlDataDocument object */ using System; using System .Data; using System .Data. SqlClient; using System.Xml; class UsingXmlDataDocument...

Ngày tải lên: 14/12/2013, 22:15

... 1: create a DataSet object and fill it with the top rows // from the Customers table DataSet myDataSet = new DataSet( ); mySqlConnection.Open(); mySqlDataAdapter.Fill(myDataSet, "Customers"); mySqlConnection.Close(); ... encoding="IBM437"?> ALFKI Alfreds Futterkiste Germany ANATR ... Creates a DataSet object named myDataSet and fills it with the top two rows from the Customers table Creates an XmlDocument object named myXmlDocument, and then loads it with the XML from myDataSet...

Ngày tải lên: 14/12/2013, 22:15

... intended to contain data Their presence is sufficient to convey meaning, as shown in the following example: 10 Module 9: Using XML to Exchange Data The ... observed when using XML to exchange data ix THIS PAGE INTENTIONALLY LEFT BLANK Module 9: Using XML to Exchange Data # Overview ! Introduction to XML ! Validating XML Documents ! Using the Document ... Stream objects are used to create the output XML document Using these objects allows the document to be output to a Web folder by using a URL • A Stream object is opened from the Record object to...

Ngày tải lên: 21/12/2013, 19:15

... Attempting to stop `rg1.vip` on member `node1` Stop of `rg1.vip` on member `node1` succeeded Attempting to stop `rg1` on member `node1` Stop of `rg1` on member `node1` succeeded Attempting to start ... prior to the database instance start, the START script timeout is set to 600 seconds Page 15 Using Oracle Clusterware to Protect A Single Instance Oracle Database 11g Then ask Oracle Clusterware to ... Attempting to stop `rg1.db_ERI` on member `node2` Stop of `rg1.db_ERI` on member `node2` succeeded Attempting to stop `rg1` on member `node2` Stop of `rg1` on member `node2` succeeded Attempting to start...

Ngày tải lên: 30/03/2014, 13:20

... you how to use Visual Basic.NET and several quantitative tools to begin development of some trading strategies and to analyze data, and we will share some ideas about how to connect to industry ... to list steps and milestones that are progressing as planned Blue text is used to show steps and milestones that have been completed Red text is used to show steps and milestones that have stopped ... need to be analyzed Steps and Milestones: The purpose of the Steps and Milestones section is to keep the project on track The goal is to document at a high level all the major steps and milestones...

Ngày tải lên: 23/04/2014, 16:19

... profiles, histone modification profiles, and DNA binding data for transcription factors and histone-modifying proteins This large compendium of datasets provides an unprecedented opportunity to investigate ... predictor matrix for each bin These predictor matrices were used to predict expression of transcripts by support vector machine (SVM) or support vector regression (SVR) models The genome-wide data ... trials of cross-validation For each trial, the dataset was randomly separated into two halves: one half as training data and the other as testing data to estimate the accuracy of the model The values...

Ngày tải lên: 09/08/2014, 22:23

... Learn how to run a script to create database tables automatically • Learn how to insert data into database tables • Learn how to create database transactions and commit data to the database • ... the LOB data type and points to the alternate memory location • Write a program or use a utility to add LOB data to database • Use EMPTY_BLOB() function to insert a LOB locator A Guide to Oracle9i ... 'J', 9); A Guide to Oracle9i Format Models • Used to format data retrieved from database • Can be used to format a date to display time or a number to display as a currency A Guide to Oracle9i Numerical...

Ngày tải lên: 23/10/2014, 19:21

... the data, then we can use UpSizeR to scale the dataset into desired size Scenarios that we need to down scale a dataset also commonly exist One may want to take a small sample of a large dataset ... the properties of the whole dataset, the resulting dataset may not be able to reflect the original dataset Instead, the problem can be solved by downsizing the dataset using UpSizeR with s < Even ... internet data, terabyte size databases become fairly common It is necessary for a synthetic database generator to be able to cope with such large datasets Since we are generating synthetic databases...

Ngày tải lên: 12/10/2015, 17:35

... could “take [the data] out and play with it” without endangering the sanctity of the database or the privacy of customers This allowed the qualified business user to test the data, determine its ... need to detect and manage fraud has become increasingly critical to its customers and larger parts of the business By managing the anti-fraud operations through a big data environment and using ... conduct his or her own experiments to advance the business Putting the solution into action The solution— strict governance but with the flexibilty to “take the data out and play with it” A critical...

Ngày tải lên: 30/11/2015, 21:09

... passing by minor stops To render B´ezier curves, control points need to be positioned Using the framework of random field layout models introduced in [3], the problem is cast into a graph layout ... coordination, and pricing Our aim is to aid visual inspection of this data, which is carried out at TLC to identify structural characteristics of (sub)networks and to back-up design decisions on extensions ... constant, keeps b sufficiently close to its anchor ab • Distance to near B´ezier points As is the case with near stations, a B´ezier point b1 ∈ L should not lie too close to another B´ezier point b2...

Ngày tải lên: 16/06/2016, 01:34

... - Use case name Store into database - Actor Administration department - Purpose Store document into database - General description Attach document into the form and upload into database - References ... Administration department Login Login to system Logout Logout of system Register to “incoming book” Store date, type of documents and number of documents Store Store document into database Hide from web Set ... button Show information form Insert information “Submit” document’s and click Store into database Exception Missing some fields in the form Require fill in missing fields 35 Uc10 Store into database...

Ngày tải lên: 23/11/2012, 15:04

... students have more opportunities to talk and to share ideas This interaction with groupmates encourages students to restructure their ideas For instance, they may need to summarize, elaborate, exemplify, ... expository texts K - what I Know - the teacher leads students in brainstorming what they already know about a topic and how they have acquired this information The teacher then helps students to ... ideas into more general categories W - what I Want to know - As the students think about the topic and the general categories of information, they generate questions about aspects of the topic...

Ngày tải lên: 06/09/2013, 05:10

... points and divide the points into slides At the same time, students need to take into consideration slide layout A slide cannot be too cluttered, the size of the font has to be large enough, and the ... organized and summarized now has to be presented orally so as to convey a clear message to an audience of peers Just as they would in a purely oral presentation, students have to 'rehearse' the pronunciation ... computer mode seems to minimize their tension and feeling of insecurity when having to speak in English Listening -The class now listens to the oral presentation Listening to a non-native speaker...

Ngày tải lên: 06/09/2013, 10:10