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Creating backups

From: SQL Server 2008 Essential Training

Video: Creating backups

We have all these great features of SQL Server to keep our data fast and clean. We've got constraints for integrity, transactions, indexes, but at the end of the day all these databases are being stored on files on a hard drive and hard drives break. So even if you've created your database files on a nice RAID 10 unit, you still need to be it backing up and backing up regularly. Or we can do this using SQL Server Management Studio or even just SQL commands. We can get this going.

Creating backups

We have all these great features of SQL Server to keep our data fast and clean. We've got constraints for integrity, transactions, indexes, but at the end of the day all these databases are being stored on files on a hard drive and hard drives break. So even if you've created your database files on a nice RAID 10 unit, you still need to be it backing up and backing up regularly. Or we can do this using SQL Server Management Studio or even just SQL commands. We can get this going.

We backup one database at a time. So open up the databases, select the one you're interested in, not that it really matters, and come down to tasks where you'll find an entry for backup. I select that. The reason why I say it doesn't matter which database you right-click on is because the first question you get in the backup window is which database you're interested in backing up. Most of the time for a straightforward situation, you're going to keep the default values. Really the only choice you're interested in here is this backup type. Is it full or is it deferential? And in fact the first time through the only option you'll be able to do is a full backup.

After you've done one full backup, you can select to do a differential one, which will be smaller in size, because it's essentially the changes between your last full backup and the state of the database right now. The reason that SQL Server is able to do this is because it keeps track of the different backups that you've done. It likes to understand when you did your full backups, when you did your differentials, and one of the impacts of that, I mean that if you're selecting a full backup, you also have this option here to do what's called a Copy Only Backup, which really detaches from the main chain of backups, creating a self-contained one.

You'll notice that you're not able to do a copy only backup when it's differential, because you haven't got anything to make a difference on. So we're going to do a full backup. It's not a copy only, And backing up the database. We can give it a name. I'll accept the default here. There is an expiration option here that the backup set will expire after certain amount of days. If it's zero that just means it won't expire at all. Now this section down here, the destination, this can trick people and trip people up. I've known several people that have been bitten by this.

This is the default location that your backups will go to. It's actually just the path that SQL Server is installed at and we've got a Backup\AdventureWorksLT. bak file. Okay, that's fine. But people see this button. They can click Add and it gives them the ability to add a new path or add a new destination on disk. That looks all right. Here's the issue. If you do this and you can add multiple locations in here to back out to, but it does not copy the backup and duplicate it from place-to-place.

What it will do is almost like a basic RAID pan that will split up the backup across multiple files. Now that means it can be faster, which is a good thing, but it means if you have multiple locations and you have a need to do a restore, you have to get the backup files from every location. So this is not a redundancy option. It's just a speed one. I'm going to click over here on the left to the Options page. Now I've already done a couple of backups, both full and differential, and it's asking me here, do I want to back up to the existing backup set? And yes I do. I'm continuing it but I do have the options where I could say back up to a new media set or overwrite all the old ones.

I do have some options here to verify the backup when finished. Yup, I think I'll do that. Click back to the General page and I'm just going to go for it. Click OK. This is a fairly small database. So it's a pretty quick job, but obviously if you have lots of rows it's going to take a little while to work. That's how you'd get your first backup started. Now your organization may have and hopefully does have a more strategic backup strategy that should include SQL Server. You may have third-party tools that you're dealing with, because backup and restore should really be an enterprise-wide idea.

But if you're going to be involved even in basic administration of SQL Server you certainly want to be comfortable with doing a casual backup.

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This video is part of

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SQL Server 2008 Essential Training

74 video lessons · 38530 viewers

Simon Allardice
Author

 
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  1. 2m 21s
    1. Welcome
      1m 19s
    2. Using the exercise files
      1m 2s
  2. 17m 58s
    1. SQL Server core concepts
      9m 4s
    2. SQL Server editions
      3m 8s
    3. Applications included with SQL Server
      5m 46s
  3. 26m 1s
    1. Preparing for installation
      3m 44s
    2. Creating service accounts
      2m 33s
    3. Installing SQL Server
      11m 42s
    4. Post-installation checks
      3m 9s
    5. Installing sample databases
      4m 53s
  4. 13m 35s
    1. Introduction to SQL Server Management Studio
      8m 7s
    2. Introduction to SQL Server Books Online
      3m 6s
    3. SQL Server system databases
      2m 22s
  5. 1h 26m
    1. Planning your database
      9m 39s
    2. Creating a SQL Server database
      4m 7s
    3. Creating tables
      7m 51s
    4. Data types in SQL Server
      12m 25s
    5. Defining keys
      8m 9s
    6. Creating default values
      4m 39s
    7. Creating check constraints
      2m 25s
    8. Creating unique constraints
      4m 34s
    9. Introduction to relationships and foreign keys
      9m 51s
    10. Creating relationships in SQL Server Management Studio
      8m 14s
    11. Database normalization
      11m 47s
    12. Creating computed columns
      3m 10s
  6. 23m 11s
    1. Using the SQL Server Import and Export Wizard
      3m 58s
    2. Importing Excel files into SQL Server
      6m 11s
    3. Importing CSV files into SQL Server
      5m 27s
    4. Importing Access databases into SQL Server
      7m 35s
  7. 55m 29s
    1. Introduction to Transact-SQL
      3m 43s
    2. Using SELECT statements
      7m 16s
    3. Changing the default database
      2m 21s
    4. Creating conditions in SQL
      8m 10s
    5. Sorting your output
      3m 23s
    6. Using aggregate functions
      7m 12s
    7. Finding unique values
      2m 14s
    8. Using subqueries
      9m 33s
    9. Joining multiple tables together
      8m 0s
    10. Viewing execution plans
      3m 37s
  8. 19m 36s
    1. Writing INSERT statements
      5m 47s
    2. Writing UPDATE statements
      4m 38s
    3. Writing DELETE statements
      2m 54s
    4. Using the OUTPUT clause to return inserted keys and GUIDs
      6m 17s
  9. 32m 52s
    1. Introduction to SQL functions
      6m 26s
    2. Using SQL configuration functions
      2m 14s
    3. Using string functions
      7m 26s
    4. Using date functions
      6m 27s
    5. Creating user-defined functions
      10m 19s
  10. 28m 46s
    1. Introduction to stored procedures
      4m 23s
    2. Creating stored procedures
      11m 23s
    3. Introducing transactions
      4m 23s
    4. Creating transactions
      8m 37s
  11. 16m 39s
    1. Understanding and creating indexes
      6m 32s
    2. Monitoring and rebuilding indexes
      6m 0s
    3. Monitoring database size and integrity
      4m 7s
  12. 11m 41s
    1. Creating backups
      4m 21s
    2. Creating differential backups and using backup compression
      3m 40s
    3. Restoring databases
      3m 40s
  13. 17m 40s
    1. Introduction to SQL Server security and permissions
      5m 54s
    2. Adding a Windows user to the database
      5m 7s
    3. Creating SQL Server logins and switching authentication modes
      6m 39s
  14. 36m 41s
    1. Introduction to SQL Server Reporting Services
      2m 52s
    2. Connecting to the Report Manager
      4m 29s
    3. Using Report Builder
      12m 4s
    4. Formatting values in reports
      4m 17s
    5. Adding indicators to reports
      5m 11s
    6. Adding charts to reports
      3m 54s
    7. Working with report security
      3m 54s
  15. 24m 41s
    1. Introduction to SQL Server Integration Services (SSIS)
      1m 57s
    2. Using Business Intelligence Development Studio (BIDS)
      6m 59s
    3. Creating and executing a simple SSIS package
      7m 35s
    4. Importing packages into SQL Server Management Studio
      3m 21s
    5. Scheduling jobs with SQL Server Agent
      4m 49s
  16. 31s
    1. Goodbye
      31s

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