Training Kit (Exam 70-461): Querying Microsoft ... - Cdn.oreilly.com

More documents

Recommendations

Info

Suggested Practices .............................................545 Learn More About Extended Events, Execution Plans, and Dynamic Management Objects 545 Answers ........................................................546 Lesson 1 546 Lesson 2 546 Lesson 3 547 Case Scenario 1 548 Case Scenario 2 548 chapter 15 implementing indexes and statistics 549 Before You Begin ................................................550 Lesson 1: Implementing Indexes ..................................550 Heaps and Balanced Trees 550 Implementing Nonclustered Indexes 564 Implementing Indexed Views 568 Lesson Summary 573 Lesson Review 573 Lesson 2: Using Search Arguments ................................573 Supporting Queries with Indexes 574 Search Arguments 578 Lesson Summary 584 Lesson Review 584 Lesson 3: Understanding Statistics .................................585 Auto-Created Statistics 585 Manually Maintaining Statistics 589 Lesson Summary 592 Lesson Review 592 Case Scenarios ..................................................593 Case Scenario 1: Table Scans 593 Case Scenario 2: Slow Updates 594 Suggested Practices .............................................594 Learn More About Indexes and How Statistics Influence Query Execution 594 Contents xxi
xxii Contents Answers ........................................................595 Lesson 1 595 Lesson 2 595 Lesson 3 596 Case Scenario 1 597 Case Scenario 2 597 chapter 16 understanding cursors, sets, and temporary tables 599 Before You Begin ................................................599 Lesson 1: Evaluating the Use of Cursor/Iterative Solutions vs. Set-Based Solutions ...........................................600 The Meaning of “Set-Based” 600 Iterations for Operations That Must Be Done Per Row 601 Cursor vs. Set-Based Solutions for Data Manipulation Tasks 604 Lesson Summary 610 Lesson Review 610 Lesson 2: Using Temporary Tables vs. Table Variables ................611 Scope 612 DDL and Indexes 613 Physical Representation in tempdb 616 Transactions 617 Statistics 618 Lesson Summary 623 Lesson Review 624 Case Scenarios ..................................................624 Case Scenario 1: Performance Improvement Re<strong>com</strong>mendations for Cursors and Temporary Objects 625 Case Scenario 2: Identifying Inaccuracies in Answers 625 Suggested Practices .............................................626 Identify Differences 626
Page 2 and 3: Want to read more? Microsoft Press
Page 4 and 5: Contents introduction xxv chapter 1
Page 6 and 7: chapter 3 filtering and sorting Dat
Page 8 and 9: chapter 5 Grouping and Windowing 14
Page 10 and 11: chapter 7 Querying and Managing XML
Page 12 and 13: chapter 9 Designing and creating vi
Page 14 and 15: Answers ...........................
Page 16 and 17: Answers ...........................
Page 20 and 21: Answers ...........................
Page 22 and 23: chapter 1 Foundations of Querying E
Page 24 and 25: T-SQL is the main language used to
Page 26 and 27: Key Terms Notice the term distinct
Page 28 and 29: Key Terms Here’s the output of th
Page 30 and 31: Key Terms Beyond the fact that this
Page 32 and 33: Another example of an incorrect ter
Page 34 and 35: Lesson Summary ■■ T-SQL is base
Page 36 and 37: Observe the similarity of the query
Page 38 and 39: 2. Filter Rows Based on the WhERE C
Page 40 and 41: Quick Check ■■ What is the diff
Page 42 and 43: Notice that the ORDER BY clause is
Page 44 and 45: 3. The problem now is that the quer
Page 46 and 47: suggested practices To help you suc
Page 48 and 49: Lesson 2 1. correct answer: b a. in
Page 50: Microsoft Press Ebooks—Your books

Training Kit (Exam 70-461): Querying Microsoft ... - Cdn.oreilly.com

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?