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SQL Basics for SAP HANA

PARTICIPANT HANDBOOKINSTRUCTOR-LED TRAINING

Course Version: 12

Course Duration: 2 Day(s)

Material Number: 50135953

0For Any SAP / IBM / Oracle - Materials Purchase Visit : www.erpexams.com OR Contact Via Email Directly At : [email protected]

For Any SAP / IBM / Oracle - Materials Purchase Visit : www.erpexams.com OR Contact Via Email Directly At : [email protected]


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Typographic Conventions

American English is the standard used in this handbook.

The following typographic conventions are also used.

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Contents

vii Course Overview

1 Unit 1: Motivation and Basic Concepts

2

15

Lesson: Understanding Motivation and Basic Concepts

Lesson: Understanding the Sample Data

21 Unit 2: Data From a Table Or View

22

47

Lesson: Using Data from a Table or View

Exercise 1: Using the SELECT Statement to Read from a Single

Table

53 Unit 3: Aggregation of Data

54

65

Lesson: Aggregating Data

Exercise 2: Use Aggregate Expressions

69 Unit 4: Data From Multiple Tables Part 1

70

91

Lesson: Reading Data from Multiple Tables- Part 1

Exercise 3: Use JOIN to Combine Data from Several Tables

95 Unit 5: Data From Multiple Tables Part II

96

107

Lesson: Reading Data from Multiple Tables- Part 2

Exercise 4: Use Nested Queries

111 Unit 6: NULL Values

112

117

Lesson: Understanding NULL Values

Exercise 5: Understand NULL Values

121 Unit 7: Data Stored in Tables

122

129

Lesson: Changing Data Stored in Tables

Exercise 6: Insert, Update, and Delete Rows in a Database Table

133 Unit 8: Data Storage

134

143

Lesson: Defining How Data is Stored

Exercise 7: Create, Change, and Delete a Database Table

149 Unit 9: Views For Data Access

150

157

Lesson: Using Views for Data Access

Exercise 8: Work with Database Views

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161 Unit 10: Functions and Procedures

162

167

173

178

185

191

192

201

202

Lesson: Creating User-Defined Functions

Exercise 9: Create and Call Scalar User-Defined Functions

Exercise 10: Create and Call Table User-Defined Functions

Lesson: Creating Database Procedures

Exercise 11: Create and Use a Database Procedure

Unit 11: Data Access

Lesson: Defining Data Access

Unit 12: Database Transactions

Lesson: Explaining Database Transactions

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Course Overview

TARGET AUDIENCE

This course is intended for the following audiences:

• Application Consultant

• Development Consultant

• Technology Consultant

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Lesson 1

Understanding Motivation and Basic Concepts 2

Lesson 2

Understanding the Sample Data 15

UNIT OBJECTIVES

• Understand the motivation for and foundation of the relational model

• Understand SQL and its relation to the relation model

• Understand database tables as the most important database objects

• Understand the sample database used throughout the course

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Unit 1

Lesson 1

Understanding Motivation and Basic Concepts

LESSON OVERVIEW

This lessons explains why learning SAP HANA SQL may be important and the relational

database model it originates from.

LESSON OBJECTIVES

After completing this lesson, you will be able to:

• Understand the motivation for and foundation of the relational model

• Understand SQL and its relation to the relation model

• Understand database tables as the most important database objects

Terms Database Management System, Database and Database System

The terms Database, Database System and Database Management System are frequently

used incorrectly and interchangeably:

■“What Database do you use?” ©

■“Which Database Management System do you use?” ©

■“We are using HANA as Database.” ©

■“We are using SAP HANA as Database Management System.” ©

■In everyday life, these terms are usually used incorrectly ...

Figure 1: Terms DB, DBS, and DBMS

The terms in fact refer to slightly different concepts:

Database (DB)

A database is a concrete structured collection of “ records” .

Database Management System (DBMS)

A database management system is software that manages databases. Every access to a

database (create, read, insert, update, delete) goes exclusively through the DBMS. The

DBMS exercises complete control over the database(s) it manages.

Database System

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