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

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chapter 3 filtering and sorting Data 61 Before You Begin .................................................61 Lesson 1: Filtering Data with Predicates .............................62 Predicates, Three-Valued Logic, and Search Arguments 62 Combining Predicates 66 Filtering Character Data 68 Filtering Date and Time Data 70 Lesson Summary 73 Lesson Review 74 Lesson 2: Sorting Data ............................................74 Understanding When Order Is Guaranteed 75 Using the ORDER BY Clause to Sort Data 76 Lesson Summary 83 Lesson Review 83 Lesson 3: Filtering Data with TOP and OFFSET-FETCH .................84 Filtering Data with TOP 84 Filtering Data with OFFSET-FETCH 88 Lesson Summary 93 Lesson Review 94 Case Scenarios ...................................................95 Case Scenario 1: Filtering and Sorting Performance Recommendations 95 Case Scenario 2: Tutoring a Junior Developer 95 Suggested Practices ..............................................96 Identify Logical Query Processing Phases and Compare Filters 96 Understand Determinism 96 Answers .........................................................97 Lesson 1 97 Lesson 2 98 Lesson 3 98 Case Scenario 1 99 Case Scenario 2 100 Contents ix
x Contents chapter 4 combining sets 101 Before You Begin ................................................101 Lesson 1: Using Joins ............................................102 Cross Joins 102 Inner Joins 105 Outer Joins 108 Multi-Join Queries 112 Lesson Summary 116 Lesson Review 117 Lesson 2: Using Subqueries, Table Expressions, and the APPLY Operator ....................................................117 Subqueries 118 Table Expressions 121 APPLY 128 Lesson Summary 135 Lesson Review 136 Lesson 3: Using Set Operators ....................................136 UNION and UNION ALL 137 INTERSECT 139 EXCEPT 140 Lesson Summary 142 Lesson Review 142 Case Scenarios ..................................................143 Case Scenario 1: Code Review 143 Case Scenario 2: Explaining Set Operators 144 Suggested Practices .............................................144 Combine Sets 144 Answers ........................................................145 Lesson 1 145 Lesson 2 145 Lesson 3 146 Case Scenario 1 147 Case Scenario 2 147
Page 2 and 3: Want to read more? Microsoft Press
Page 4 and 5: Contents introduction xxv chapter 1
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 18 and 19: Suggested Practices ...............
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

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