dashDB SQL for Functions, Grouping, Union, Subqueries and Updates - eLearning (K04003G-WBT)

Overview

This course teaches developers, database administrators, and system programmers various features of SQL, including column functions, grouping, unions, subqueries, and maintaining data.

Note: Guided eLearning is a self-paced offering which includes web-based content for self-study and videos (including audio) that demonstrate activities.

If you are enrolling in a Self Paced Virtual Classroom or Web Based Training course, before you enroll, please review the Self-Paced Virtual Classes and Web-Based Training Classes on our Terms and Conditions page, as well as the system requirements, to ensure that your system meets the minimum requirements for this course. http://www.ibm.com/training/terms

Audience

Developers, Database Administrators, System Programmers

Prerequisites

dashDB SQL for Basic Queries or equivalent experience or knowledge

Objective

Please refer to course overview

Geef details weer

Course Outline

1. dashDB environment
2. Column functions and grouping
   • SQL functions
   • Beware of NULLs
   • GROUP BY and HAVING
   • Important rule for column functions
   • Restrictions
   • Conceptual execution of a SELECT
   • SQL challenges
   • SQL challenges - solutions
3. UNION
   • Single report
   • UNION rules
   • UNION vs UNION ALL
   • SQL challenges
   • SQL challenges - solutions
4. Using subqueries
   • Subqueries
   • Subquery predicates
   • Restrictions and reminders
   • SQL challenges
   • SQL challenges - solutions
5. Maintaining data
   • Working data
   • Views
   • Working with the data
   • Prototyping change SQL with a unit of work
   • Reminders
   • SQL challenges
   • SQL challenges - solutions