Understanding Scans And Seeks
Whether a query uses Scan or Seek can have a big impact on the cost of excuting that query. This article examines when each is used and which is optimal.
2009-09-10
6,054 reads
Additional Articles
Using Star Join and Few-Outer-Row Optimizations to Improve Data Warehousing Queries
In this white paper we discuss two of the new features in SQL Server 2008, Star Join and Few-Outer-Row optimizations. We test the performance of SQL Server 2008 on a set of complex data warehouse queries designed to highlight the effect of these two features and observed a significant performance gain over SQL Server 2005 (without these two features).
2009-09-10
4,815 reads
EVA Partition Alignment
Partition alignment is a well documented best practice, but does it have any benefit on an HP EVA?
2009-09-09
2,968 reads
Transact-SQL Formatting Standards
How should SQL code be formatted? What sort of indentation should you use? Should keywords be in upper case? How should lists be lined up? SQL is one of those languages that will execute however you treat whitespace and capitalization. However, the way SQL is laid out will effect its readability and the time taken to review and understand it. Standardisation of code layout is an important issue, but what standard should you adopt? Rob avoids a direct answer, but tells you the sort of answers you'll need to decide upon when creating a strategy for formatting SQL code.
2009-09-09
4,890 reads
Options for hiding SQL Server code
I am aware of the WITH ENCRYPTION clause that is used to encrypt the code for objects like views, stored procedures and functions. It sort of fulfills my purpose and is easy to implement, but it does not cover all SQL Server objects. In this tip we look at another option to restrict users from viewing the definition/code of any SQL Server object.
2009-09-08
5,538 reads
Transact-SQL Formatting Standards (Coding Styles)
How should SQL code be formatted? What sort of indentation should you use? Should keywords be in upper case? How should lists be lined up? SQL is one of those languages that will execute anyway however you treat whitespace and capitalization. However, the way SQL is laid out will effect its readability and the time taken to review and understand it. Standardisation of code layout is an important issue, but what standard should you adopt? Rob avoids a direct answer, but tells you the sort of answers you'll need to decide upon when creating a strategy for formatting SQL code.
2009-09-08
4,913 reads
Migrating down in SQL Server
In this edition of the SQL Server Mailbag, database expert Denny Cherry tackles reader questions dealing with concerns over downgrading from SQL Server Enterprise to Standard edition, installing SSIS on a second server and more.
2009-09-07
3,011 reads
SQL Server Security Audit (Part 3) - Operating System Level Audit
The final part of the Security Audit series examines how to secure the Windows Server operating system.
2009-09-07
2,582 reads
Getting started with SQL Server Management Objects (SMO)
In this tip, I am going to discuss how you can get started with SMO and how you can programmatically manage a SQL Server instance with your choice of programming language.
2009-09-04
3,737 reads
Implementing a SQL Server Fast Track Data Warehouse
This paper defines a reference configuration model (known as SQL Server Fast Track Data Warehouse) and a CPU core-balanced approach to implementing a symmetric multiprocessor (SMP)-based SQL Server data warehouse with proven performance and scalability expectations for sequential I/O data workloads.
2009-09-04
4,268 reads
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Forums
query to track time spent on individual tasks in SSIS
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Question of the Day
Identities and Sequences I
When thinking of the Identity property for auto incrementing columns and sequences for the same action, which are explicitly linked to increment a number in a table when a new row is added?
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