By Michael Coles
Discussing new and latest beneficial properties, SQL Server dressmaker and administrator Michael Coles takes you on a professional guided travel of Transact–SQL performance in SQL Server 2008 in his booklet Pro T–SQL 2008 Programmer’s Guide. absolutely functioning examples and downloadable resource code deliver Coles’ technically exact and fascinating therapy of Transact–SQL into your individual arms. Step–by–step causes be sure readability, and an advocacy of best–practices will steer you down the line to success.
Pro T–SQL 2008 Programmer’s Guide is each developer’s secret to meaking complete use of SQL Server 2008’s strong, built–in Transact–SQL language. Transact–SQL is the language builders and DBAs use to engage with SQL Server. It’s used for every little thing from querying facts, to writing kept approaches, to dealing with the database. New positive aspects in SQL Server 2008 comprise a spatial info variety, SQLCLR integration, the MERGE assertion, a dramatically more desirable and market–leading XML characteristic set, and aid for encryption—all of that are lined during this book
What you’ll learn
- Write kept tactics, capabilities, and triggers utilizing Transact–SQL
- Apply best–practices while centralizing procedural common sense within your SQL Server database.
- Seamlessly paintings with XML info utilizing XQuery, XPath, and the XML type.
- Use SQLCLR to write down .NET code that runs within SQL Server.
- Implement full–text seek inside of your database.
- Load info extra successfully utilizing the recent MERGE statement.
- Learn concerning the new geography variety for storing spatial data.
Who is that this e-book for?
Pro T–SQL 2008 Programmer’s Guide is written for SQL Server and Transact–SQL builders who are looking to enforce best–practices and take complete benefit of all that SQL Server has to supply. .NET programmers will locate the booklet beneficial in displaying the right way to run .NET code inside of SQL Server. Database directors who have to write triggers and the occasional kept strategy also will enjoy the book.
About the Apress professional Series
The Apress professional sequence books are functional, specialist tutorials to maintain you on and relocating up the pro ladder.
You have got the activity, now you must hone your talents in those tricky aggressive instances. The Apress professional sequence expands your abilities and services in precisely the parts you wish. grasp the content material of a professional ebook, and you may consistently have the ability to get the activity performed in a qualified improvement undertaking. Written through specialists of their box, seasoned sequence books from Apress provide the hard–won ideas to difficulties you'll face on your specialist programming career.
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Additional info for Pro T-SQL 2008 Programmer’s Guide
Consider Listing 1-1, which is a simple C# code snippet that reads in a flat file of names and displays them on the screen. Listing 1-1. Dispose(); The example performs the following functions in an orderly fashion: 1. The code explicitly opens the storage for input (in this example, a flat file is used as a “database”). 2. It then reads in each record (one record per line), explicitly checking for the end of the file. 3. WriteLine(). 4. And finally, it closes and disposes of the connection to the data file.
This results in a more complex three-valued logic (3VL). Let me give you a quick example to demonstrate. ” If I refused to tell you what value x stood for, you would have no idea whether x was less than, equal to, or greater than 10; so the answer to the question is neither true nor false—it’s the third truth value, unknown. Now replace x with NULL and you have the essence of SQL 3VL. NULL in SQL is just like a variable in an equation when you don’t know the variable’s value. No matter what type of comparison you perform with a missing value, or which other values you compare the missing value to, the result is always unknown.
Also, you can specify at most two WHEN SOURCE NOT MATCHED clauses. If you specify two of these clauses, the first must have an AND clause with a predicate. The MERGE statement is an important new DML feature, and the second MERGE example demonstrates the MERGE statement DELETE functionality that I mentioned previously in this section. Shift table will contain the data shown in Figure 2-3. The example in Listing 2-6 builds on Listing 2-5. The lines that are different in this listing are displayed in bold.