connecting to a sql server database using asp net 3 5

... SQL 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 ... don't have to wait for a brand new connection to the database to be established when there's a suitable connection already available When you close a connection, that connection isn't actually closed;...

Ngày tải lên: 07/11/2013, 10:15

... = new SqlConnection( "server= localhost ;database= Northwind;uid=sa;pwd=sa"); // monitor the StateChange event using the StateChangeHandler() method mySqlConnection.StateChange += new StateChangeEventHandler(StateChangeHandler); ... 7 .3 illustrates the use of the StateChange event Listing 7 .3: STATECHANGE.CS /* StateChange.cs illustrates how to use the StateChange event */ using System; using System.Data; using System.Data.SqlClient; ... InfoMessage event fires when the database returns a warning or information message produced by the database You use the InfoMessage event to monitor these messages To get the message, you read the...

Ngày tải lên: 14/12/2013, 13:15

... System.EventArgs e) { ds = new DataSet( ); // Create the DataAdapter SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM " + TABLENAME, ConfigurationSettings.AppSettings[ "Sql_ ConnectString"]); // Load ... 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) ... StringWriter(sb); ds.GetChanges( DataRowState.Added | DataRowState.Modified).WriteXml(sw, XmlWriteMode.WriteSchema); cmd.Parameters.Add("@data", SqlDbType.NText); cmd.Parameters["@data"].Value = sb.ToString(...

Ngày tải lên: 21/01/2014, 11:20

... Visual Basic 6.0 Authors AuthID First Name Last Name A1 John Brown A2 Matthew Bortniker A3 Rick Johnson A4 Peter Wright A5 James Moon AuthorBook BookID AuthID A1 A2 A3 A4 A5 A1 Ngoài điều quan ... "database" chọn "New Database" hình vẽ sau: Sau việc đánh tên database click OK Ngoài dùng SQL script để tạo database Khi ta phải rõ vị trí primary data file transaction log file Ví dụ: USE master ... thông tin database object (table, view ) hay data type Sp_helpdb [ 'database' ] Cung cấp thông tin database cụ thể Sp_monitor Cho biết độ bận rộn SQL Server Sp_spaceused ['object', 'updateusage' Cung...

Ngày tải lên: 25/08/2012, 09:00

... "database" chọn "New Database" hình vẽ sau: Sau việc đánh tên database click OK Ngoài dùng SQL script để tạo database Khi ta phải rõ vị trí primary data file transaction log file Ví dụ: USE master ... 2000 Server Beginning Visual Basic 6.0 Authors AuthID A1 A2 A3 A4 A5 First Name John Matthew Rick Peter James Last Name Brown Bortniker Johnson Wright Moon AuthorBook BookID 2 3 AuthID A1 A2 A3 A4 ... ch a data table Ðầu tiên SQL Server dành Page Mixed Extent để ch a data cho table sau data tăng trưởng SQL dành hẳn Uniform Extent cho table 3. 3 Nguyên Tắc Hoạt Ðộng C a Transaction Log Trong SQL...

Ngày tải lên: 06/10/2013, 17:20

... CommandBuilder SqlDataAdapter da = new SqlDataAdapter(cmd); SqlCommandBuilder cb = new SqlCommandBuilder(da); // Fill table using the DataAdapter DataTable dt = new DataTable( ); da.Fill(dt); // ... changing data being read by a user and preventing users from reading data being changed by a user Locks are acquired and released by user actions; they are managed internally by database software ... Start the transaction tran = conn.BeginTransaction(IsolationLevel.ReadCommitted); // Create the command SqlCommand cmd = new SqlCommand(sqlText, conn, tran); // Create the DataAdapter and CommandBuilder...

Ngày tải lên: 17/10/2013, 20:15

... CommandBuilder SqlDataAdapter da = new SqlDataAdapter(cmd); SqlCommandBuilder cb = new SqlCommandBuilder(da); // Fill table using the DataAdapter DataTable dt = new DataTable( ); da.Fill(dt); // ... changing data being read by a user and preventing users from reading data being changed by a user Locks are acquired and released by user actions; they are managed internally by database software ... Start the transaction tran = conn.BeginTransaction(IsolationLevel.ReadCommitted); // Create the command SqlCommand cmd = new SqlCommand(sqlText, conn, tran); // Create the DataAdapter and CommandBuilder...

Ngày tải lên: 14/12/2013, 18:16

... secured database while the actual permissions are stored in the database file When you connect to a secured Jet database, the user ID and password are validated [ Team LiB ] against the values ... string attributes in addition to those defined by ADO .NET To open a database secured by Microsoft Access user-level security, use the Jet OLEDB:System Database attribute in the connection string to ... Microsoft Access user-level security requires an additional file—the workgroup information or MDW file—in addition to the database or MDB file This file contains the user and group information for...

Ngày tải lên: 24/12/2013, 05:15

... ListBox Name lstDatabases Label Name Label3 Text Backup Devices Name lstBackupDevices ListBox Command Button Name btnBackup Text &Backup Name Label4 Text Backup Set Name Name txtBackupSetName Text ... created for this How -To For example, you could allow the user to back up the database to a separate file and give him additional options for the type of backup to perform Odds are good that you ... frmHowTo7_2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load ' Load up the SQL Servers LoadSQLServers(Me.lstSQLServers) End Sub On the lstSQLServers list box, add...

Ngày tải lên: 21/01/2014, 12:20

... CONSTRAINT_CATALOG nvarchar(128) Constraint name CONSTRAINT_SCHEMA nvarchar(128) Constraint owner CONSTRAINT_NAME sysname TABLE_CATALOG nvarchar(128) Database name TABLE_SCHEMA nvarchar(128) Table ... System.EventArgs e) { // Create the DataAdapter to retrieve schema information SqlDataAdapter da = null; if (primaryKeyRadioButton.Checked) da = new SqlDataAdapter(GETPRIMARYKEYCONSTRAINTS, ConfigurationSettings.AppSettings[ "Sql_ ConnectString"]); ... current database Table 6-10 REFERENTIAL_CONSTRAINTS information schema view Column name Data type Description CONSTRAINT_CATALOG nvarchar(128) Database name CONSTRAINT_SCHEMA nvarchar(128) Constraint...

Ngày tải lên: 26/01/2014, 10:20

... Button Controls Property Settings Object Property Setting Label Name Label1 Text SQL Servers ListBox Name lstSQLServers Label Name Label2 Text Databases ListBox Name lstDatabases Label Name Label3 ... SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore _Database Database = Me.lstDatabases.SelectedItem Devices = "[" & Me.lstBackupDevices.SelectedItem & "]" ReplaceDatabase = Me.chkReplaceDB.Checked SQLRestore(osvr) ... How -To 7.1 Listing 7.14 frmHowTo7 _3. vb: Calling the Routine That Loads Available SQL Servers into a List Box Private Sub frmHowTo7 _3_ Load(ByVal sender As System.Object, _ ByVal e As System.EventArgs)...

Ngày tải lên: 26/01/2014, 11:20

... Security Modes Database Interfaces Connecting to a SQL Server Data Source Overview – What you have to know… Server Name Security Information Database name Data Interface / API to use Steps to connect… ... Data Object Interfaces Application Programming Interfaces ADO RDO VBSQL DAO OLE DB ODBC DBLibrary JET Other Data Sources Relational Databases Connecting to a SQL Server Data Source      Connecting ... Introduction   We are going to discuss establishing an connection to a SQL Server Database You will learn that there is an easy way and a hard way Agenda     Overview – What you have to know… Security...

Ngày tải lên: 23/10/2014, 18:38

... sau Hai chuỗi thông tin kết nối giốngnhư Một chuỗi có tên DefaultConnection, dùng cho chức membership (sẽ bàn sau) để CSDL quản lý việc phân...

Ngày tải lên: 02/07/2015, 23:58

... About.aspx sử dụng MasterPage.master để test  Tạo trang Contac.aspx About.aspx  Thay đổi code cho trang Contact.aspx.cs About.aspx.cs kế th a từ lớp BasePage thay System.Web.UI.Page sau: public ... 2008 and SQLServer 20 05 GVHD: Dương Ngọc Long Nam – longnamit@yahoo.com Page 23 Building CMS / E-Commerce Project using ASP. NET 3. 5 in C# 2008 and SQLServer 20 05 32 Thêm vào trang Contact.aspx About.aspx ... Project using ASP. NET 3. 5 in C# 2008 and SQLServer 20 05 Tạo trang MasterPage.master:  Từ menu bar, chọn : Website  Add New Item  AJAX Master Page  Đặt tên : MasterPage.master Hình 02: Tạo trang...

Ngày tải lên: 02/07/2014, 00:20

... break; case DbType.Byte: param.Value = byte.MinValue; break; case DbType.Date: case DbType.DateTime: param.Value = DateTime.MinValue; break; case DbType.Currency: case DbType.Decimal: param.Value ...

Ngày tải lên: 02/07/2014, 00:20

... Server Client tools such as Enterprise Manager and Query Analyzer are also shared The System.Data.SqlClient class cannot automatically discover the port number of a named instance of SQL Server listening ... a port other than the default 1 433 To connect to a named instance of SQL Server listening on a custom port, specify the port number following the instance name in the connection string separated ... the same computer Each instance has its own set of system and user databases that are not shared between instances and it runs within its own security context The maximum number of instances...

Ngày tải lên: 14/12/2013, 18:16

... Interface and log onto the system Navigate to Database > Connection and add a new database handler for Microsoft SQL Server Click Save to add the database handler to the configuration Navigate to Database ... MySQL port) Database: (left blank / database is created via the opn_mysql .sql script) How to create a Microsoft SQL Server database for the OPN System™ XT Server? Connecting to an Oracle database ... for each database required login information when connecting to the database sql scripts Each of the database types has a sql file that you need to: Modify to point to the right database Run to...

Ngày tải lên: 20/12/2013, 23:15

... cmd.CreateParameter("CustomerID", ADODB.DataTypeEnum.adChar, ADODB.ParameterDirectionEnum.adParamInput, 5) cmd.Parameters.Append(prm) prm.Value = "CHOPS" OpenNorthwindADOConnection(cnn) cmd.ActiveConnection ... rstCurr.GetString Catch excp As Exception MessageBox.Show(excp.Message) End Try End Sub The last thing that this routine does is open a recordset based on the Command object This is to the use just ... records that are needed In this case, the GetString method is used to assign it to the results text box If you are using a bulk query, shown in the next section, you would use the Execute method To...

Ngày tải lên: 14/12/2013, 20:16

... Discussion A Microsoft Access database password requires that users enter a password to obtain access to the database and database objects This is also known as share-level security A password does ... not allow groups or users to have distinct levels of access or permissions Anyone with the password has unrestricted access to the database The Set Database command from the Tools database password ... Microsoft Access database password, use the Jet OLEDB :Database Password attribute in the connection string to specify the password This corresponds to the OLE DB property DBPROP_JETOLEDB_DATABASEPASSWORD...

Ngày tải lên: 24/12/2013, 05:15

... Tab Page1 Name btnDetach Text &Detach Database Name Label3 Text File to Attach Label Tab Page2 TextBox Tab Page2 Name txtFileToAttach Label Tab Page2 Name Label4 Text Name of Attached Database ... After you have chosen the database, you can reattach the database by clicking on the tab labeled Attach Database You can then type in the name you want to attach the database as, and click ... Attach Database button The database file will then be attached, and you can see it in the list of databases To check this, you can look at the list back on the Detach Database tab; that list was refreshed...

Ngày tải lên: 24/12/2013, 06:17