IBM CLA22G - IBM Db2 12: SQL Workshop

Course Outline

Unit 1: SQL Introduction

Unit 2: Simple SQL Queries

Unit 3: Retrieving Data from Multiple Tables

Unit 4: Scalar Functions and Arithmetic

Unit 5: Column Functions and Grouping

Unit 6: Advanced Functions

Unit 7: Performance Optimization

Unit 8: UNION

Unit 9: Using Subqueries

Unit 10: Maintaining Data

Objective

After completing this course, learners should be able to:

•    Explain the role and use of SQL dialects (DDL, DML, and DCL) in managing and interaction with Db2 databases•    Summarize the new and deprecated features of Db2 v12, such as enhanced query optimization•    Retrieve rows based on comparisons to numeric or alphanumeric column values•    Implement correlation names in queries to simplify table references•    Implement rounding and truncation functions, including ROUND and DECIMAL•    Utilize the GROUP BY clause to categorize data into meaningful subsets and the HAVING clause to filter grouped results based on aggregate conditions•    Apply date and time functions to extract, manipulate, and compare date, time, and timestamp values in SQL queries•    Identify the impact of special registers, advanced window functions, and AI-driven query optimization on database performance and workload management•    Differentiate between UNION and UNION ALL and explain how each affects query performance and result set behavior•    Explain the role of subqueries in SQL and how they differ from standard joins in retrieving data•    Explain the role of transaction management using COMMIT, ROLLBACK, and SAVEPOINT to control database changes