... the connection string to the constructor SqlConnection mySqlConnection = Using a SqlConnection Object toConnectto a SQL Server Database You create a SqlConnection object using the SqlConnection() ... MySqlConnection.cs illustrates how to use a SqlConnection object toconnectto a SQL Server database */ using System; using System.Data; using System.Data.SqlClient; class MySqlConnection { public ... mySqlConnection.State); // close the database connection using the Close() method // of the SqlConnection object new SqlConnection(connectionString); // open the database connection using...
... the Connection and reopen it. Closed The Connection is closed. Connecting The Connection is establishing access to the database. Executing The Connection is running a command. Fetching The Connection ... a connection enables you to know the progress of your connection request to the database; two examples of states are open and closed. You use the Connection object's State property to ... // to Open Console.WriteLine("Calling mySqlConnection.Open()"); mySqlConnection.Open(); // close mySqlConnection, causing the State to change from Open // to Closed...
... The native protocol of Novell Netware networks. TCP/IP Sockets [ Team LiB ] Recipe 1.6 Using an IP Address toConnectto SQL Server Problem You want toconnectto a SQL Server using its IP ... Macintosh to communicate with SQL Server using native AppleTalk protocol. Banyan VINES Supports Banyan VINES Sequenced Packet Protocol (SPP) across Banyan VINES IP network protocol. Multiprotocol ... network protocol. Multiprotocol Automatically chooses the first available network protocol to establish a connection generally with performance comparable tousing a native network library....
... specifies that you want toconnectto the SQL Server using a trusted connection Databases Collection of databases for the specified SQL Server You will also be using the OleDbConnection object. ... Server and database and then create a new connection based on the selections. Within a database application, it is necessary to allow users to select a SQL Server back end to which to connect. ... SQL-DMO. Text Databases ListBox Name lstDatabases Label Name Label3 Text Connection String TextBox Name txtConnectionString Text Not Connected Command Button Name btnConnect Text Connect...
... Core PHP Programming IT-SC book 35script, some memory is set aside to store the information you wish to save. You don't need to tell PHP what kind of information you expect to be saved ... Likewise I put today's date into a variable named Today. In this case PHP knows to put text into the variable because the date function returns text. This type of data is referred to as a string, ... they will be sent to the browser. When it comes to variables, PHP is not so lenient with case. Today and today are two different variables. Since PHP doesn't require you to declare variables...
... reusable connection to a Microsoft Office Access database file. You will use the connection file toconnectto the same Access database from twoseparate Excel worksheets.Create the reusable connection ... current workbook.How To To connectto SQL Server data, do the following:CHAPTER 5 ■ CONNECT TO OTHER DATABASES 1277516Ch05.qxp 1/5/07 2:59 PM Page 1276. Clear the Connectto a Specific Table ... Paradox• Text file databasesThis chapter describes how to establish connections from Excel to other external Exceldatabases as well as Access databases, SQL Server databases, and OLAP databases hosted...
... best way to learn. Once you've 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 ... from the Customers table. Figure 3.27: Viewing the rows in the Customers table using the Server Explorer You can enter SQL statements by clicking the Show SQL Pane button in the toolbar, as ... button in the toolbar and selecting columns from the table, as shown in Figure 3.29. As you can see, I've selected the ContactName, CompanyName, and CustomerID columns from the Customers...
... practice to keep a database connection open for an extended period of time. Instead, a better approach is toconnectto the database, fetch the data into a DataSet object, and then disconnect ... and later reopen the connection and send the changes back to the database. You can manually open a connection to a database by creating a SqlConnection object, setting its ConnectionString property, ... open connection with a TableAdapter by setting the Connection property. The following code shows how toconnectto the database and fill the Suppliers DataTable. In this case, the database connection...
... Connecting to SQL Server Using Integrated Security from ASP.NET Problem You want to coordinate Windows security accounts between an ASP.NET application and SQL Server. Solution Connect to ... Server. Solution Connect to SQL Server from ASP.NET using Windows Authentication in SQL Server. Discussion Connecting to a SQL Server database provides two different authentication modes: ... or Windows 2000 user account to provide authentication information. It does not expose the user ID and password and is the recommended method for authenticating a connection. SQL Server Authentication...
... 8-7. File: StoreXmlFieldForm.cs // Namespaces, variables, and constants using System; using System.Configuration; using System.Windows.Forms; using System.IO; using System.Xml; using System.Data; ... demonstrates how to store XML data in a text field of a database table and subsequently read it into an XmlDocument using the LoadXml( ) method. Standard database access techniques using a DataAdapter ... Update the databaseusing the DataAdapter. da.Update(dt); } private void readButton_Click(object sender, System.EventArgs e) { idTextBox.Clear( ); } private void clearButton_Click(object...
... 10.8 Adding Tables to a Database Problem You need to add a table to an existing database. Solution Use the CREATE TABLE statement. The sample code executes the DDL statement using the ExecuteNonQuery( ... object to add a table to an existing SQL Server database. The C# code is shown in Example 10-8. Example 10-8. File: AddTableToDatabaseForm.cs // Namespaces, variables, and constants using ... System; using System.Configuration; using System.Data; using System.Data.SqlClient; // . . . SqlConnection conn = new SqlConnection( ConfigurationSettings.AppSettings["Sql_ConnectString"]);...