... dynamic taxonomies Using metadata HTML and PDF formats, with open standard graphics Click on your answers Database management systems - Using a database for document retrieval - page Using a database ... know that an instance of a 'technical document' can have a title and subject Database management systems - Using a database for document retrieval - page 10 Metadata search We can implement an indexed ... database ) http://jakarta.apache.org/lucene Database management systems - Using a database for document retrieval - page Full Text Search Some features of indexed text search engines are language-dependent,...
Ngày tải lên: 31/03/2014, 20:20
... everything in the database Database management systems - Using a database for document management - page Using a database for management There are advantages to using systems that manage both document ... the same database System Document Meta Data Document Documents Database Using a database for management It is often easier to create a system which manages metadata in the database and points to ... - page Using a database for management If you decide to use a database, you have to know that there are two main ways in which it can manage metadata: Users Management 1) managing metadata in...
Ngày tải lên: 31/03/2014, 20:20
Báo cáo hóa học: "Adaptive DOA Estimation Using a Database of PARCOR Coefficients" docx
... estimation accuracy and the database size is achieved While θi takes values in the range [0, π), σi2 may take a very large value The straightforward quantisation of σi2 significantly increases ... Iiguni, and H Maeda, “New approach to adaptive DOA estimation based upon a database retrieval technique,” IEICE Transactions on Communications, vol E83-B, no 12, pp 2694–2701, 2000 [11] I Setiawan and ... successively store the pairs of {(ρ(m), θ(m))}M=1 into the m database If the database has already stored the same PARCOR vector as the current one, we delete it We denote the number of data sets which are...
Ngày tải lên: 22/06/2014, 23:20
Using a DataGrid Control to Access a Database
... Preview dialog box Next, you need to create a DataSet object You use a DataSet object to a store local copy of the information stored in the database A DataSet object can represent database structures ... Northwind database; you might need to get the password from your database administrator) Drill down to the Customers table in the Northwind database and drag it to your form This creates a SqlConnection ... Next, add another button that will allow you to save any changes you make to the rows in the DataGrid: Go ahead and add another button and set the Text property of this button to Update Double-click...
Ngày tải lên: 07/11/2013, 10:15
Using a SqlConnection Object to Connect to a SQL Server Database phần 1
... ADO.NET automatically stores database connections in a pool Connection pooling offers a great performance improvement because you don't have to wait for a brand new connection to the database to be ... Server database */ using System; using System.Data; using System.Data.SqlClient; class MySqlConnection { public static void Main() { // formulate a string containing the details of the // database ... SQL Server and use those credentials to connect to the database This saves you from providing a separate username and password to SQL Server You can use integrated security in your program by specifying...
Ngày tải lên: 07/11/2013, 10:15
Tài liệu Using a SqlConnection Object to Connect to a SQL Server Database phần 2 doc
... SqlConnection("server=localhost ;database= Northwind;uid=sa;pwd=sa"); // monitor the StateChange event using the StateChangeHandler() method mySqlConnection.StateChange += new StateChangeEventHandler(StateChangeHandler); ... example defines a method named StateChangeHandler to handle the StateChange event You'll notice that the second parameter to this method is a StateChangeEventArgs object You get the original ... state of the connection to the database The State property returns a constant from the ConnectionState enumeration Note An enumeration is a list of numeric constants, each of which has a name...
Ngày tải lên: 14/12/2013, 13:15
Tài liệu Filling a DataSet Using an XML Template Query ppt
... CreateParameter( ) Creates a SqlXmlParameter object used to pass parameters to a command using the Name and Value properties ClearParameters( ) Clears SqlXmlParameter objects for a command Table ... cmd.CreateParameter( ); param.Name = "@CustomerID"; param.Value = customerId; // Create the DataSet DataSet ds = new DataSet( ); // Create the SQL XML DataAdapter SqlXmlAdapter da = new SqlXmlAdapter(cmd); ... of customers into a table SqlDataAdapter da = new SqlDataAdapter(sqlText, ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable table = new DataTable("Customers"); da.Fill(table);...
Ngày tải lên: 21/01/2014, 11:20
Tài liệu Using a Single Stored Procedure to Update Multiple Changes to a SQL Server Database pdf
... schema and data for the table da.FillSchema(ds, SchemaType.Source, TABLENAME); da.Fill(ds, TABLENAME); // Columns in XML representation of data as attributes foreach(DataColumn col in ds.Tables[TABLENAME].Columns) ... System.EventArgs e) { ds = new DataSet( ); // Create the DataAdapter SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM " + TABLENAME, ConfigurationSettings.AppSettings["Sql_ConnectString"]); // Load ... The default value is null which results in the return of a handle to an internal representation to an empty XML document xpathNamespaces A text parameter that specifies the namespace declarations...
Ngày tải lên: 21/01/2014, 11:20
Tài liệu Using XPath to Query Data in a DataSet doc
... ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable orderTable = new DataTable(ORDERS_TABLE); da.Fill(orderTable); ds.Tables.Add(orderTable); // Fill the OrderDetails table and add it to the DataSet da = new SqlDataAdapter("SELECT ... ds = new DataSet("Orders_OrderDetails"); SqlDataAdapter da; // Fill the Order table and add it to the DataSet da = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["Sql_ConnectString"]); ... [Order Details]", ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.Fill(orderDetailTable); ds.Tables.Add(orderDetailTable);...
Ngày tải lên: 26/01/2014, 10:20
Accessing a database using visual studio NET
... connected to the database, you can view things such as the tables You can also retrieve and modify rows in the tables You can drill down to the tables in the database by clicking the Add icon ... Entering a SQL statement You can build SQL statements visually by clicking the Show Diagram button in the toolbar and selecting columns from the table, as shown in Figure 3.29 As you can see, ... selected the ContactName, CompanyName, and CustomerID columns from the Customers table Figure 3.29: Building a SQL statement visually You can view the properties of a column in a table by clicking...
Ngày tải lên: 20/08/2013, 15:08
A New Technique Using Headspace Gas Monitoring to Determine Carbon Source Addition in a BNR Process
... the basis of tests using the same batch of sludge sample Acetate and VFAs concentrations were verified using a Hewlett-Packard® 588 0A gas chromatograph, equipped with a flame ionization detector ... profile of TAD supernatant and NaAc addition Observed CO2 evolution rates were similar in both cases, and the TAD supernatant VFA estimations are shown in Table Estimations showed a substantial overestimation, ... Reading (V) Figure Carbon dioxide sensor calibration with air samples TAD operation A pilot-scale, single-stage TAD (75L) equipped with a Turborator® aerator (Turborator® Technologies Inc.) was...
Ngày tải lên: 05/09/2013, 08:40
Tài liệu Accessing a Database Using Visual Studio .NET ppt
... connected to the database, you can view things such as the tables You can also retrieve and modify rows in the tables You can drill down to the tables in the database by clicking the Add icon ... Entering a SQL statement You can build SQL statements visually by clicking the Show Diagram button in the toolbar and selecting columns from the table, as shown in Figure 3.29 As you can see, ... selected the ContactName, CompanyName, and CustomerID columns from the Customers table Figure 3.29: Building a SQL statement visually You can view the properties of a column in a table by clicking...
Ngày tải lên: 14/12/2013, 13:15
Tài liệu Using a DataView to Control Edits, Deletions, or Additions in Windows Forms pdf
... adding, editing, or deleting the data in the control Binding a DataGrid to a DataTable binds to the default view of the underlying DataTable The DataView class represents a view of the DataTable ... SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable dtOrders = new DataTable("Orders"); da.FillSchema(dtOrders, SchemaType.Source); ... using System.Data; using System.Data.SqlClient; private DataView dv; // private void ControlDataEditWithDataViewForm_Load(object sender, System.EventArgs e) { // Fill the Order table SqlDataAdapter...
Ngày tải lên: 14/12/2013, 18:16
Tài liệu Updating a Database Using a DataSet doc
... the DataTable and TableAdapter are generated, notice that the wizard automatically detects that the Suppliers and Products table have a relationship in the database and creates a Relation that ... saveButton Change the Text property of each button to Query and Save, respectively The next step is to create a DataAdapter class and bind it to the DataGridView control You will create the DataAdapter ... DataGridView control are automatically copied back to the DataSet acting as the data source for the control Saving changes made to the data involves reconnecting to the database, performing any required...
Ngày tải lên: 15/12/2013, 00:15
Tài liệu Storing XML to a Database Field doc
... private void sampleXmlButton_Click(object sender, System.EventArgs e) { DataSet ds = new DataSet( ); // Fill the Categories table and add it to the DataSet SqlDataAdapter da = new SqlDataAdapter("SELECT ... System; using System.Configuration; using System.Windows.Forms; using System.IO; using System.Xml; using System.Data; using System.Data.SqlClient; private DataTable dt; private SqlDataAdapter da; ... subsequently read it into an XmlDocument using the LoadXml( ) method Standard database access techniques using a DataAdapter and DataTable are used [ Team LiB ] ...
Ngày tải lên: 24/12/2013, 05:15
Tài liệu Adding Tables to a Database pdf
... create a table in the database and a primary key on the new table in a SQL Server database You can programmatically drop a table using the DROP TABLE statement in a similar way To drop the table ... Management Language (DML) Used to manipulate—select, insert, update, and delete—data in the database objects Database objects are defined using DDL The solution executes a DDL CREATE TABLE statement to ... syntax for each database varies slightly because of differences in database server capabilities and architecture For example, the CREATE TABLE statement for Oracle is different because Oracle...
Ngày tải lên: 21/01/2014, 11:20
Tài liệu Using XSD Schema Files to Load and Save a DataSet Structure pptx
... System.EventArgs e) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet da = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["Sql_ConnectString"]); ... ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable orderTable = new DataTable(ORDERS_TABLE); da.FillSchema(orderTable, SchemaType.Source); da.Fill(orderTable); ds.Tables.Add(orderTable); // Fill the OrderDetails table and add it to ... the DataSet da = new SqlDataAdapter("SELECT * FROM [Order Details]", ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.FillSchema(orderDetailTable,...
Ngày tải lên: 26/01/2014, 10:20
Tài liệu Create a Point-and-Click Query Tool for Users Using a Web Form pptx
... Handles btnView.Click Dim odaDisplay As OleDb.OleDbDataAdapter Dim dtDisplay As New DataTable() Try ' Take the txtSQLString text and create a data table Then set the ' data source of the data ... btnView button is clicked, the string is passed to a DataAdapter control, filling a data table From there, the data is displayed when the data source of the DataGrid control is set to the data table ... DOCUMENT bgColor buttonface Label Name Label1 Text Tables Name Label2 Text Columns Name Label3 Text SQL String Name Label4 Text Data Display Name lstTables AutoPostback True Name lstColumns SelectionMode...
Ngày tải lên: 26/01/2014, 11:20
Tài liệu Create a Point-and-Click SQL Server Query Tool for Users Using a Windows Form doc
... create a data table; then set the ' data source of the data grid odaDisplay = New OleDb.OleDbDataAdapter(Me.txtSQLString.Text, mcnn) odaDisplay.Fill(dtDisplay) Me.dgDisplay.DataSource = dtDisplay ... btnView_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles btnView.Click Dim odaDisplay As OleDb.OleDbDataAdapter Dim dtDisplay As New DataTable() Try ' Take the txtSQLString text and ... on multiple tables and automatically create the join Add a list of columns for the user to choose to use for criteria, and allow the user to input the criteria Use this tool as a base for editing...
Ngày tải lên: 26/01/2014, 11:20
Tài liệu Do Firms Want to Borrow More? Testing Credit Constraints Using a Directed Lending Program doc
... Indian banking industry, Sankarnaranayan for his work collecting the data, Dean Yang and Niki Klonaris for excellent research assistance, and Robert Barro, Sugato Battacharya, Gary Becker, Shawn ... Niki Klonaris for excellent research assistance, and Robert Barro, Sugato Battacharya, Gary Becker, Shawn Cole, Ehanan Helpman, Sendhil Mullainathan, Kevin Murphy, Raghuram Rajan and Christopher ... the sample where we observe a change in loans 25 constrained and access to market capital increases very fast as a function of access to bank capital, to the point where total capital stock goes...
Ngày tải lên: 16/02/2014, 03:20