... Listing 7.1: MYSQLCONNECTION.CS /* MySqlConnection.cs illustrates howto use a SqlConnection object toconnectto a SQLServerdatabase */ using System; using System.Data; using ... mySqlConnection = Using a SqlConnection Object toConnectto a SQLServerDatabase You create a SqlConnection object using the SqlConnection() constructor. This constructor is overloaded, meaning that ... " ;server= localhost ;database= Northwind;uid=sa;pwd=sa"; // create a SqlConnection object toconnectto the // database, passing the connection string to the constructor SqlConnection mySqlConnection...
... Closed The Connection is closed. Connecting The Connection is establishing access to the database. Executing The Connection is running a command. Fetching The Connection is retrieving information ... produce information and error messages using the SQLServer PRINT or RAISERROR statements, which are described in Chapter 4, "Introduction to Transact- SQL Programming." The following InfoMessageHandler() ... // to Open Console.WriteLine("Calling mySqlConnection.Open()"); mySqlConnection.Open(); // close mySqlConnection, causing the State to change from Open // to Closed...
... System.Windows.Forms; using System.Text; using System.IO; [ Team LiB ] Recipe 8.11 Using a Single Stored Procedure to Update Multiple Changes to a SQL Server Database Problem You need to update a SQLServer ... code is shown in Example 8-17. Example 8-17. File: StoredProcedureMultipleRowsForm.cs // Namespaces, variables, and constants using System; using System.Configuration; using System.Windows.Forms; ... The sample code contains two event handlers: Form.Load Sets up the sample by creating a DataSet containing the contents of the table using System.Data; using System.Data.SqlClient; private...
... 6.14 Specifying Locking Hints in a SQLServerDatabase Problem You need to pessimistically lock rows in an underlying SQLServer database. Solution Use SQLServer locking hints from ADO.NET. ... that can be used to monitor lock activity. For more information about database locks, using locking hints, or monitoring database locks, see Microsoft SQLServer Books Online. [ Team LiB ] ... Namespaces, variables, and constants using System; using System.Configuration; using System.Data; using System.Data.SqlClient; private SqlConnection conn; private SqlTransaction tran; //...
... For more information about database locks, using locking hints, or monitoring database locks, see Microsoft SQLServer Books Online. [ Team LiB ] SERIALIZABLE Use the same locking as a ... ã The SQLServer Profiler can be used to monitor and record locking information. ã The Windows Performance Monitor has a SQLServer Locks Object counter that can be used to monitor lock ... managed internally by database software. A locking hint can be specified with SELECT, INSERT, DELETE, and UPDATE statements to instruct SQLServer as to the type of lock to use. You can use locking...
... System™ XT Server. Database sql file Microsoft SQLServer opn_mssql .sql My SQL opn_mysql .sql Oracle opn_oracle .sql Howto create a Microsoft SQLServerdatabase for the OPN System™ XT Server? ... Connecting to MySQL database When you connectto the MySQL databaseusing the Aqua Data Studio, you need to enter the required information in the screen shown below: Name: OPNMySQL ... XT Server. For instruction howto export data such as the Contact List from the embedded databaseto a new database, see the Howto export Contact list from McKoi databaseto Microsoft SQL Server? ...
... trong SQLServer ta có các loại Integer như : tinyint, smallint, int, bigint. Trong đó kích thước từng loại tương ứng là 1,2,4,8 bytes. Nghĩa là loại smallint tương đương với Integer và loại int ... một (SQL) Server nào đó là ta nói đến một Instance của SQLServer 2000, thông thường đó là Default Instance. Một Instance của SQLServer 2000 có 4 system databases và mt hay nhiu user database. ... Một SQLServer Database Hầu như mọi thứ trong SQLServer được tổ chức thành những objects ví dụ như tables, views, stored procedures, indexes, constraints Những system objects trong SQL Server...
... một user database được tạo ra thì SQLServer sẽ copy to n bộ cácsystem objects (tables, stored procedures ) từ Model database sang database mi va to. ã Msdb : Database này được SQLServer Agent ... trong SQLServer ta có các loại Integer như : tinyint, smallint,int, bigint. Trong đó kích thước từng loại tương ứng là 1,2,4,8 bytes. Nghĩa là loạismallint tương đương với Integer và loại int ... Implement a SQLServerDatabase 3.1. Cấu Trúc Của SQL Server Như đã trình bày ở các bài trước một trong những đặc điểm của SQLServer 2000 làMultiple-Instance nên khi nói đến một (SQL) Server nào...
... After connecting to the server, the DetachDB method is called. Then the GetSQLDatabases routine is called to refresh the database list. Listing 7.27 frmHowTo7_5.vb: Detaching a SQLServerDatabase ... LoadSQLServers(Me.lstSQLServers) End Sub 6. On the lstSQLServers list box, add the code in Listing 7.25 to the SelectedIndexChanged event. This routine toggles the btnDetach button, depending ... LoadSQLServers routine, check out step 4 in that How- To. Listing 7.24 frmHowTo7_5.vb: Calling the Routine That Loads Available SQL Servers into a List Box Private Sub frmHowTo7_5_Load(ByVal sender As System.Object,...
... System; using System.Configuration; using System.Text; using System.Data; using System.Data.SqlClient; // . . . StringBuilder sb = new StringBuilder( ); // SQL DDL command text to create ... object to create a new database named MyDatabase inSQL Server. The C# code is shown in Example 10-7. Example 10-7. File: CreateServerDatabaseForm.cs // Namespaces, variables, and constants using ... Creating a New SQLServerDatabase Problem You need to create a new databasein your SQL Server. Solution Use the CREATE DATABASE statement. The sample code executes the DDL statement—using...
... Create Database dialog box from within the Server Explorer in two ways. The first way is to right-click on the Data Connections node and choose Create New SQLServer Database. The second way is to ... actually make a database useful. to create a new database, it does give you an idea of where you can see various databases in your system. Now you will learn howto create a databasein VS .NET. ... right-click on the SQL Server instance to which you want to add the database- in this case, SHADRACH2-and then choose New Database. Although both methods open the Create Database dialog box,...
... examination of the LoadSQLServers routine, check out step 4 in that How- To. Listing 7.8 frmHowTo7_2.vb: Calling the Routine That Loads Available SQL Servers into a List Box Private Sub frmHowTo7_2_Load(ByVal ... Dim oDevice As SQLDMO.BackupDevice ' Log on to the SQL Server. Dim osvr As SQLDMO.SQLServer = New SQLDMO.SQLServer() osvr.LoginSecure = True osvr .Connect( strSQLServer) lstBackupDevices.Items.Clear() ... ' Create a connection to the server Dim osvr As New SQLDMO.SQLServer() osvr.LoginSecure = True button to have information about the backup displayed in the text box at the bottom of the...
... from a SQLServerDatabase Problem You need to programmatically define constraints in a DataSet and retrieve constraint information defined in a SQLServer database. Solution Use the INFORMATION_SCHEMA ... Example 6-27. File: ConstraintForm.cs // Namespaces, variables, and constants using System; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Data.OleDb; ... allows applications to continue to work properly if the system tables change in future releases of SQL Server. Information schema views provide an alternative tousing system stored procedures...
... examination of the LoadSQLServers routine, check out step 4 in 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 ... found in the SQLDMO.SQLDMO_RESTORE_TYPE namespace and are SQLDMORestore _Database, SQLDMORestore_Files, SQLDMORestore_Log. Database This property allows you to specify the database name to restore ... Restore a SQLServerDatabase Sometimes the user needs to restore a database, and again, it is nice if he doesn't have to go to Enterprise Manager to accomplish this task. This How- To...