Ngày tải lên: 21/01/2014, 12:20
... from 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 ... command. SqlCommand cmd = new SqlCommand(sqlText, conn, tran); // Create the DataAdapter and CommandBuilder. SqlDataAdapter da = new SqlDataAdapter(cmd); SqlCommandBuilder cb = new SqlCommandBuilder(da); ... dataGrid.DataSource = null; [ Team LiB ] Recipe 6.14 Specifying Locking Hints in a SQL Server Database Problem You need to pessimistically lock rows in an underlying SQL Server database. ...
Ngày tải lên: 17/10/2013, 20:15
Tài liệu Specifying Locking Hints in a SQL Server Database doc
... conn.BeginTransaction(IsolationLevel.ReadCommitted); // Create the command. SqlCommand cmd = new SqlCommand(sqlText, conn, tran); // Create the DataAdapter and CommandBuilder. SqlDataAdapter da = new SqlDataAdapter(cmd); ... on a resource. Locks ensure transactional integrity and database consistency by preventing other users from changing data being read by a user and preventing users from reading data being changed ... information about database locks: ã The system stored procedure sp_lock returns a result set containing all active locks. ã The syslockinfo table in the master database contains information about...
Ngày tải lên: 14/12/2013, 18:16
Design and Implement a SQL Server Database
... thường đó là Default Instance. Một Instance c a SQL Server 2000 có 4 system databases và mt hay nhiu user database. Cỏc system databases bao gm: ã Master : Ch a tất cả những thông tin cấp hệ thống ... Kế Một Database Tạo Một User Database Chúng ta có thể tạo một database dễ dàng dùng SQL Server Enterprise bằng cách right-click lên trên " ;database& quot; và chọn "New Database& quot; ... and jobs). Cấu Trúc Vật Lý C a Một SQL Server Database Mỗi một database trong SQL Server đều ch a ít nhất một data file chính (primary), có thể có thêm một hay nhiều data file phụ (Secondary)...
Ngày tải lên: 25/08/2012, 09:00
Design and Implement a SQL Server Database
... user database được tạo ra thì SQL Server sẽ copy toàn bộ các system objects (tables, stored procedures ) từ Model database sang database mi va to. ã Msdb : Database này được SQL Server Agent ... (SQL) Server nào đó là ta nói đến một Instance c a SQL Server 2000, thông thường đó là Default Instance. Một Instance c a SQL Server 2000 có 4 system databases và một hay nhiều user database. ... Sp_help ['object'] Cung cấp thông tin về một database object (table, view ) hay một data type. Sp_helpdb [&apos ;database& apos;] Cung cấp thông tin về một database cụ thể nào đó. Sau đó...
Ngày tải lên: 06/10/2013, 17:20
Using a SqlConnection Object to Connect to a SQL Server Database phần 1
... static void Main() { // formulate a string containing the details of the // database connection string connectionString = " ;server= localhost ;database= Northwind;uid=sa;pwd=sa"; ... illustrates how to use a SqlConnection object to connect to a SQL Server database */ using System; using System.Data; using System.Data.SqlClient; class MySqlConnection { public static ... database to be established when there's a suitable connection already available. When you close a connection, that connection isn't actually closed; instead, your connection is marked...
Ngày tải lên: 07/11/2013, 10:15
Tài liệu Using a SqlConnection Object to Connect to a SQL Server Database phần 2 doc
... Open Calling mySqlConnection.Close() mySqlConnection State has changed from Open to Closed The InfoMessage Event The InfoMessage event fires when the database returns a warning or information ... object. You can produce information and error messages using the SQL Server PRINT or RAISERROR statements, which are described in Chapter 4 , "Introduction to Transact- SQL Programming." ... StateChangeEventArgs class. The following example defines a method named StateChangeHandler to handle the StateChange event. You'll notice that the second parameter to this method is a StateChangeEventArgs...
Ngày tải lên: 14/12/2013, 13:15
Tài liệu Using a Single Stored Procedure to Update Multiple Changes to a SQL Server Database pdf
Ngày tải lên: 21/01/2014, 11:20
Tài liệu Retrieving Constraints from a SQL Server Database docx
Ngày tải lên: 26/01/2014, 10:20
SQL Server 2000 Administration in 15 Minutes a Week: Administration Fundamentals
... the instance name ( servername\instancename ). Only SQL Server 2000 can act as a named instance, but you can have many named instances operating at the same time. You can also Run SQL Server ... capabilities. Windows 2000 Advanced Server and Datacenter Server add a “load-balancing” capability to clustering. We will be going into how to design and setup clusters in a later article. Instances ... Mode authentication you are asked to provide a password for the system administrator (sa) account. This account is available so you can authenticate as a “sysadmin” via SQL Server Authentication....
Ngày tải lên: 17/10/2013, 09:15
Tài liệu To create a Microsoft SQL Server database for OPN Systemô XT Server pptx
... Download a shareware database management tool You need a database management tool to create Microsoft SQL Server database and to export/import the Contact List. You can download the Aqua Data Studio ... either the embedded database (McKoi), or an external database. If you chose the embedded database, you can change to a different one by creating a new database and configuring it to be used with ... information when connecting to the database sql scripts Each of the database types has a sql file that you need to: 1. Modify to point to the right database. 2. Run to create the database...
Ngày tải lên: 20/12/2013, 23:15
Tài liệu Determining the Length of Columns in a SQL Server Table doc
Ngày tải lên: 24/12/2013, 05:15
Tài liệu Create a Detach/Attach SQL Server Database Dialog Box ppt
Ngày tải lên: 24/12/2013, 06:17
Getting a SQL Server Query Plan
... settings for using SQL- 92 default settings Statistics Alters current session settings for displaying statistics Transactions Alters current session settings for handling SQL Server Transactions ... categories Category Description Date and Time Alters current session settings for handling of date and time data Locking Alters current session settings for handling SQL Server locking Miscellaneous ... SHOWPLAN_TEXT (from the Query Execution category) is ON, SQL Server returns a result set containing detailed information about how the SQL statements are going to be executed rather than actually...
Ngày tải lên: 28/10/2013, 18:15
Using a DataReader Object in Visual Studio .NET
... object. For my installation of SQL Server, the password to access the Northwind database is sa, and my ConnectionString property is set to: data source=localhost;initial catalog=Northwind;persist ... visually create a DataReader object in Visual Studio .NET (VS .NET); you can only create them using program statements. In this section, you'll see how to create a SqlDataReader object and use ... from a SqlCommand object, which you saw how to create using VS .NET in the previous chapter . That SqlCommand object contained a SELECT statement that retrieved the CustomerID, CompanyName, and...
Ngày tải lên: 07/11/2013, 10:15
Debugging a SQL Server Stored Procedure
... Use Visual Studio .NET to debug SQL Server stored procedures (in both standalone mode and from managed code). Discussion Debugging a stored procedure in standalone mode You can debug a stored ... View menu. 2. Create a connection to the database or select an existing connection. 3. Select and expand the node for the database that contains the stored procedure. 4. Expand the Stored Procedures ... procedure in standalone mode from Visual Studio .NET Server Explorer by following these steps: 1. Open the Server Explorer window in Visual Studio .NET by selecting it from the View menu. 2. Create...
Ngày tải lên: 07/11/2013, 13:15
Tài liệu Creating a Logical Standby Database by Using Enterprise Manager ppt
... the database. – STANDBY: prevents users from making changes to any data maintained by Data Guard SQL Apply. NONE: normal security ã Query GUARD_STATUS column in V $DATABASE. ã Database guard level ... Logical Standby Database ã Configure the database guard to control user access to tables. ã ALTER DATABASE GUARD command keywords: ALL: prevents users from making changes to any data in the database. – STANDBY: ... Logical Standby Database with Enterprise Manager Click “Add Standby Database. ” 7 Copyright â 2006, Oracle. All rights reserved. Creating a Logical Standby Database by Using Enterprise Manager ...
Ngày tải lên: 09/12/2013, 16:15