free barcode generator in asp.net c# Lesson 2: Recovering from Failure in Visual Basic .NET

Creation Denso QR Bar Code in Visual Basic .NET Lesson 2: Recovering from Failure

Lesson 2: Recovering from Failure
Encode QR Code 2d Barcode In Visual Basic .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create QR-Code image in Visual Studio .NET applications.
www.OnBarcode.com
QR Code Reader In Visual Basic .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
from filling is to ensure that you regularly back it up. Backing up the transaction log automatically truncates it, freeing up space. To determine how full the transaction log is, use the DBCC SQLPERF (LOGSPACE) command as shown in Figure 4-4.
Barcode Encoder In VB.NET
Using Barcode generation for VS .NET Control to generate, create bar code image in Visual Studio .NET applications.
www.OnBarcode.com
Bar Code Decoder In VB.NET
Using Barcode scanner for .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Figure 4-4
Print QR Code ISO/IEC18004 In C#.NET
Using Barcode encoder for .NET Control to generate, create QR-Code image in .NET framework applications.
www.OnBarcode.com
Make Quick Response Code In .NET
Using Barcode maker for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
www.OnBarcode.com
Checking the amount of transaction log space.
Making Quick Response Code In VS .NET
Using Barcode generation for Visual Studio .NET Control to generate, create QR Code 2d barcode image in .NET applications.
www.OnBarcode.com
Making UPC-A Supplement 2 In VB.NET
Using Barcode generator for Visual Studio .NET Control to generate, create UPC Code image in .NET applications.
www.OnBarcode.com
Copy Backups
QR-Code Generation In VB.NET
Using Barcode encoder for .NET framework Control to generate, create QR Code ISO/IEC18004 image in .NET applications.
www.OnBarcode.com
Generate UPC - 13 In VB.NET
Using Barcode generation for .NET Control to generate, create GS1 - 13 image in .NET framework applications.
www.OnBarcode.com
Copy backups are a feature new to SQL Server 2005, and they do not affect the overall backup and restore procedures. For example, you might have a backup scheme where you take a full database backup every third day and differential backups every six hours. From the perspective of the next differential backup, taking a copy backup of the full database does not count as a database backup, and SQL Server backs up only extents that have changed since the original full database backup. You often use copy-only backups when preparing an online restore because a copyonly backup does not affect the sequence of regular transaction logs. You should note that you cannot directly perform a copy backup using the SQL Server Management Studio interface. You can accomplish the creation and restoration of copy-only backups only by using Transact-SQL statements. COPY_ONLY backups are recorded in the backupset table in the is_copy_only column.
Paint Data Matrix 2d Barcode In VB.NET
Using Barcode maker for VS .NET Control to generate, create DataMatrix image in Visual Studio .NET applications.
www.OnBarcode.com
Draw I-2/5 In VB.NET
Using Barcode creation for .NET Control to generate, create 2 of 5 Interleaved image in .NET framework applications.
www.OnBarcode.com
Snapshot Backups
UCC - 12 Creator In Java
Using Barcode creation for Java Control to generate, create UCC - 12 image in Java applications.
www.OnBarcode.com
Scanning Barcode In Java
Using Barcode Control SDK for Eclipse BIRT Control to generate, create, read, scan barcode image in Eclipse BIRT applications.
www.OnBarcode.com
Snapshot backups provide an almost instantaneous copy of the data that they back up. Snapshot backups require the installation of extra software and hardware from independent software vendors on the computer running SQL Server 2005. The
Painting QR Code In None
Using Barcode generation for Font Control to generate, create Denso QR Bar Code image in Font applications.
www.OnBarcode.com
Generating Code 128 In VS .NET
Using Barcode encoder for Reporting Service Control to generate, create Code 128B image in Reporting Service applications.
www.OnBarcode.com
4
EAN-13 Supplement 5 Scanner In .NET Framework
Using Barcode decoder for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
QR Code 2d Barcode Generator In Objective-C
Using Barcode creation for iPad Control to generate, create QR Code ISO/IEC18004 image in iPad applications.
www.OnBarcode.com
Disaster Recovery
Encoding Code 128 In Java
Using Barcode generator for Java Control to generate, create Code 128B image in Java applications.
www.OnBarcode.com
Creating Data Matrix 2d Barcode In Java
Using Barcode encoder for Java Control to generate, create ECC200 image in Java applications.
www.OnBarcode.com
benefit of snapshot backups is that they minimize the use of SQL Server resources in accomplishing the backup. Snapshot backups work either by splitting a mirrored disk set or by creating a copy of a disk block at the time of writing.
NOTE
Database snapshots and snapshot backups
Although they are similarly named, do not confuse snapshot backups with database snapshots. The name snapshot backups is evocative of the speed of the backup. A database snapshot is an image of the database taken at a specific point in time.
The benefits of snapshot backups are as follows:
Creates an almost instantaneous backup with minimal impact on the server Restores backup almost instantaneously Backs up to tape on another host without affecting the performance of the production system Generates a copy of the production database almost instantly for the purposes of reporting or testing
You cannot perform an online restore from a snapshot backup. Restoring a snapshot backup takes the database offline. Piecemeal restores can incorporate snapshot backups, but all restore sequences will be offline restores. Snapshot backups are tracked in the msdb database and are identified by the entry backupset.is_snapshot = 1.
PRACTICE
Use the Full Recovery Model and Back Up a Database
In this practice, you configure the AdventureWorks database to use the full recovery model. You then take a full database backup. After you take the full database backup, you perform a differential backup of the database. 1. 2. 3. 4. 5. 6. If necessary, open SSMS and connect to the local instance. Expand the Databases folder. Right-click the AdventureWorks database and choose Properties. This opens the Database Properties dialog box. In the Select A Page pane, select the Options page. Ensure that the recovery model is set to Full and then click OK. Right-click the AdventureWorks database, choose Tasks, and then choose Back Up. This opens the Back Up Database dialog box, as shown in Figure 4-5.
Lesson 2: Recovering from Failure
Figure 4-5
The Back Up Database dialog box.
Ensure that the Backup Type drop-down list shows Full as the selected option, and ensure that the Backup Set section shows the Name selected as AdventureWorks-Full Database Backup. Click OK. The backup process takes several moments to complete. Click OK to close the Successful Database Backup message box. Right-click the AdventureWorks database, choose Tasks, and then choose Back Up. This again opens the Back Up Database dialog box.
8. 9.
10. Set the Backup Type to Differential, and then click OK to start the backup. 11. Click OK in the successful database backup message box. 12. Right-click the AdventureWorks database, choose Tasks, and then choose Back Up. This again opens the Back Up Database dialog box. 13. Change the Backup Type to Transaction Log. 14. In the Select A Page pane, select the Options page. 15. Ensure that the Truncate The Transaction Log option button is selected. 16. Click OK to start the transaction log backup. 17. Click OK in the Successful Database Backup message box.
Copyright © OnBarcode.com . All rights reserved.