Sunday 29 July 2012

Inside the SQL Server Query Optimizer

Inside the SQL Server Query Optimizer
“Inside the SQL Server Query Optimizer”, written by Benjamin Nevarez, will take you from the fundamentals of Statistics, Cost Estimation, Index Selection, and the Execution Engine, and guide you through the inner workings of the Query Optimization process, and throws in a pragmatic look at Parameterization and Hints along the way.
Description
A better understanding of what the Query Optimizer does behind the scenes can help you to improve the performance of your databases and applications, and this book explains the core concepts behind how the SQL Server Query Optimizer works. With this knowledge, you’ll be able to write superior queries, provide the Query Optimizer with all the information it needs to produce efficient execution plans, and troubleshoot the cases when the Query Optimizer is not giving you the best plan possible.
Table of Contents
  • Introduction to Query Optimization
  • Execution Engine
  • Statistics and Cost Estimation
  • Index Selection
  • The Optimization Process
  • Additional Topics
  • Hints
Book Details
Author(s): Benjamin Nevarez
Publisher: Simple Talk Publishing
Format(s): PDF
File size: 4.24 MB
Number of pages: 265
Link: Download

Thursday 26 July 2012

online c program test

test your c-skills
1.  Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?
A. rem = 3.14 % 2.1;
B. rem = modf(3.14, 2.1);
C. rem = fmod(3.14, 2.1);
D. Remainder cannot be obtain in floating point division.











2.  What are the types of linkages?
A. Internal and ExternalB. External, Internal and None
C. External and NoneD. Internal
are you ready to start test? click here
 start