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SQL Unit 5 Aggregation, GROUP BY, and HAVING

SQL Unit 5 Aggregation, GROUP BY, and HAVING

SQL Unit 5 Aggregation, GROUP BY, and HAVING. Kirk Scott. 5.1 Grouping By One Field 5.2 Grouping By More than One Field 5.3 GROUP BY with HAVING 5.4 More on Nulls. 5.1 Grouping By One Field. 1. Recall that the term aggregation referred to built-in functions like these:

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781 views • 61 slides
Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition. Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra. Objectives. Describe the relational model Understand Query-By-Example (QBE) Use criteria in QBE Create calculated columns in QBE Use functions in QBE.

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657 views • 52 slides
Concepts of Database Management Sixth Edition

Concepts of Database Management Sixth Edition

Concepts of Database Management Sixth Edition. Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra. Objectives. Describe the relational model Understand Query-By-Example (QBE) Use criteria in QBE Create calculated columns in QBE Use functions in QBE.

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623 views • 51 slides
Concepts of Database Management Sixth Edition

Concepts of Database Management Sixth Edition

Concepts of Database Management Sixth Edition. Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra. Objectives. Describe the relational model Understand Query-By-Example (QBE) Use criteria in QBE Create calculated columns in QBE Use functions in QBE.

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686 views • 51 slides
Concepts of Database Management Sixth Edition

Concepts of Database Management Sixth Edition

Concepts of Database Management Sixth Edition. Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra. Objectives. Describe the relational model Understand Query-By-Example (QBE) Use criteria in QBE Create calculated columns in QBE Use functions in QBE.

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530 views • 51 slides
Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition. Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra. Objectives. Describe the relational model Understand Query-By-Example (QBE) Use criteria in QBE Create calculated columns in QBE Use functions in QBE.

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541 views • 51 slides
Symmetry Detection via String Matching

Symmetry Detection via String Matching

Symmetry Detection via String Matching. Sergey Kiselev Symmetry Seminar Haifa University, Spring 2005. Motivation. Knowledge of the symmetry of object is useful for solving problems in image shape analysis, robotic applications, computer graphics, etc.

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679 views • 48 slides
Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition. Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra. Relational Databases. A relational database is a collection of tables Each entity is stored in its own table

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620 views • 44 slides
Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition. Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra. Objectives. Describe the relational model Understand Query-By-Example (QBE) Use criteria in QBE Create calculated columns in QBE Use functions in QBE.

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532 views • 40 slides
Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition

Concepts of Database Management Seventh Edition. Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra. Objectives. Describe the relational model Understand Query-By-Example (QBE) Use criteria in QBE Create calculated columns in QBE Use functions in QBE.

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539 views • 40 slides
5.1 Additional features of XPath & XSLT

5.1 Additional features of XPath & XSLT

5.1 Additional features of XPath & XSLT. XPath support for arithmetics processing ID/IDREF cross-references manipulation of strings Generating text for content for attribute values Repetition, sorting and conditional processing Generating numbers. XPath: Arithmetical Operations.

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377 views • 28 slides
5.1 XPath & XSLT: Additional features

5.1 XPath & XSLT: Additional features

5.1 XPath & XSLT: Additional features. XPath support for arithmetical operations processing ID/IDREF cross-references manipulation of strings Generating text for content for attribute values Repetition, sorting and conditional processing Generating numbers Computational power of XSLT.

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371 views • 24 slides
5.1 Additional features of XPath & XSLT

5.1 Additional features of XPath & XSLT

5.1 Additional features of XPath & XSLT. XPath support for arithmetical operations processing ID/IDREF cross-references manipulation of strings Generating text for content for attribute values Repetition, sorting and conditional processing Generating numbers.

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394 views • 22 slides
5.1 Additional features of XPath & XSLT

5.1 Additional features of XPath & XSLT

5.1 Additional features of XPath & XSLT. XPath support for arithmetical operations processing ID/IDREF cross-references manipulation of strings Generating text for content for attribute values Repetition, sorting and conditional processing Generating numbers.

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330 views • 22 slides
Additional features of XPath & XSLT

Additional features of XPath & XSLT

Additional features of XPath & XSLT. XPath support for arithmetical operations processing ID/IDREF cross-references manipulation of strings Generating text for content for attribute values Repetition, sorting and conditional processing Generating numbers. XPath: Arithmetical Operations.

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358 views • 22 slides

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