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SQL Server 2008 Essential Training
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Introduction to Transact-SQL


From:

SQL Server 2008 Essential Training

with Simon Allardice

Video: Introduction to Transact-SQL

Structured Query Language or SQL is the common language that lies at the heart of not only Microsoft SQL Server, but every RDBMS that you're likely to use. Now, you've probably noticed the different pronunciation of this. Some people say "Sequel." Others say "S-Q-L." I tend to say S-Q-L when I talk about the original language itself and "Sequel" when it's combined as an SQL Server, T-SQL or MySQL. SQL the language has been around since the 70s. It's actually one of the few languages that I was writing 25 years ago and I'm still writing now.
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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. Joining multiple tables together
      8m 0s
    9. Using subqueries
      9m 33s
    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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SQL Server 2008 Essential Training
6h 54m Beginner Dec 15, 2010

Viewers: in countries Watching now:

In SQL Server 2008 Essential Training, Simon Allardice explores all the major features of SQL Server 2008 R2, beginning with core concepts: installing, planning, and building a first database. Explore how Transact-SQL is used to retrieve, update, and insert information, and gain insight into how to effectively administer databases. The course also covers features outside SQL Server's database engine, including technologies that have grown up around it: SQL Server Reporting Services and Integration Services. Exercise files are included with the course.

Topics include:
  • Using T-SQL (Transact-SQL)
  • Managing databases with SQL Server Management Studio
  • Understanding database normalization
  • Using SELECT statements
  • Building indexes
  • Monitoring database size and integrity
  • Backing up and restoring databases
  • Creating functions and stored procedures
  • Managing database permissions
  • Creating and formatting reports
  • Adding charts to reports
  • Creating and executing a simple SSIS package
Subjects:
Business Developer Servers Databases
Software:
SQL Server
Author:
Simon Allardice

Introduction to Transact-SQL

Structured Query Language or SQL is the common language that lies at the heart of not only Microsoft SQL Server, but every RDBMS that you're likely to use. Now, you've probably noticed the different pronunciation of this. Some people say "Sequel." Others say "S-Q-L." I tend to say S-Q-L when I talk about the original language itself and "Sequel" when it's combined as an SQL Server, T-SQL or MySQL. SQL the language has been around since the 70s. It's actually one of the few languages that I was writing 25 years ago and I'm still writing now.

A lot of programming languages have come and gone, become fashionable and unfashionable, but SQL has stuck around and I still expect it to stay for a long time to come. Now SQL is a pretty small language and the key to learning it is to understand that it's a little different from other programming languages you might have come across, things like C, Java, or Python. SQL is what's called a declarative language whereas those others are what are referred to as procedural or imperative languages. Okay, this is jargon, yes.

What it means with a declarative language is that you use SQL to describe what you want and you let the database management system handle how that's actually done. You don't have to manually layout the algorithm, the different steps of the procedure, as you would do in other programming languages. So let's say we have got a thousand different products and I want to know which of these products have a price of less than a hundred dollars. Well, in a procedural or imperative language like C or Java, I would describe the steps to do this.

I would write some code that would loop through all the individual products one by one, and every time I went through the loop, I will have to ask the question again, is this less than a hundred? If so, do one thing. If not, do another thing. Even in pseudocode it looks complex. I would be writing a loop, I would be writing conditions, I would be writing return statements. That's a procedural language, but in SQL you describe what you want. In English, you would say I want all products less than $100. That written in SQL is this: SELECT * FROM products WHERE price < hundred.

No conditions, no loops, no return statements. Just the description. The database management system will look at your data, it will figure it out, and it will take this and return what's called the result set, whether this is one product or five hundred products or even none, based on this query. So SQL can be used to retrieve or read your data and ask questions of it. But it can also be used to create data, to update it, and to delete it.

This Create, Read, Update and Delete is often referred to with a wonderful acronym of CRUD. But SQL can be used actually to create the databases themselves as well. Now, this module is about something called T-SQL. That's because most database management systems have their own implementation of the core SQL language. If you work with Oracle, you're using something called PL/SQL. We're working with Microsoft SQL Server and Microsoft's flavor of SQL they call Transact-SQL or T-SQL for short.

It's still SQL at heart, but there are a few simple things added to it that will come in handy later on. SQL is a language you can learn in a few hours and be using it for decades. Get rid of all the fancy GUI interfaces, the query builders and the qizards and you can still do anything you need to do to a database as long as you have a command line prompt and know a little SQL.

Find answers to the most frequently asked questions about SQL Server 2008 Essential Training.


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Q: I'm having problems installing the free Express R2 version of SQL Server on Windows XP. I tried 64-bit and 32-bit versions. In the videos, the author installs from a DVD. Do I need to do the same?
A: While the author installs from a DVD, it's not strictly necessary. There certainly shouldn't be a problem installing the Express edition from a regular download. That's the way it's intended to be installed.

If you're using Windows XP, the only officially supported version is the 32-bit version. However, you do need to make sure that your Windows XP install is completely up-to-date and patched, with XP Service Pack 3 installed. (See http://msdn.microsoft.com/en-us/library/ms143506.aspx#Express32 for formal requirements.)

It's not unusual for the install process to take a while, and with older operating systems like XP, you'll often have to back it out and try again, as usually there's a bunch of prerequisites that need to be installed. (Like the .NET Framework 3.5 SP1, the correct version of Windows Installer, etc.)
Q: The link to the installer for the AdventureWorks sample database, as shown in the Chapter 2 movie "Installing sample databases," no longer works. Where can I find the installer?
A: Microsoft has reorganized its site. The sample files are still there, but they're a bit harder to find. To install them:

1) Visit http://msftdbprodsamples.codeplex.com/.
2) Click the link to "SQL Server 2008 R2 OLTP."
3) Click the AdventureWOkrs2008R2 Data File link and agree to the conditions to download the MDF file.
4) Move the MDF file to your SQL Server Directory, usually located at C:\Program Files\Microsfot SQL Server\MSSQL 10_50.MSSQLSERVER\MSSQL\DATA.
5) Open the SQL Sever Management Studio and connect to your instance using an account with administrative privileges.
6) Attach the sample database by right-clicking the Databases folder in the Object Explorer and choosing Attach from the pop-up menu.
7) Click the Add button in the next menu and navigate to the MDF file in the Locate Database Files window that appears. Select it and click OK.
8) Remove the reference to the log file in the "AdventureWorks2008R2" database details: pane by selecting the Log entry and clicking removing.*
9) Click OK to return to SQL Server Management Studio and complete the attachment process.

*MDF files are the "data" files for SQL Server databases. They often come along with LOG files (ldf files). This one didn't so we need to REMOVE the reference to the non-existent log file. Select the second row in the lower section (it should say File Type: Log and Message: Not Found) and click the REMOVE button.

For an illustrated version of these instructions (with screenshots), click here for a PDF version.
 
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