This course teaches you how to make use of advanced SQL techniques to access DB2 databases in different environments. This course is appropriate for customers working in all DB2 environments, specifically for z/OS, Linux, UNIX, and Windows.

starstarstarstarstar

* Actual course outline may vary depending on offering center. Contact your sales representative for more information.

Learning Objectives

Discuss basic relational database concepts Use some of the OLAP features of DB2, such as GROUPing and RANKing functions Create tables, views and indexes Use referential integrity, check constraints and triggers Use outer joins, and join tables to themselves Use CASE expressions, and the CAST function Identify the impact of Summary Tables, Materialized Query Tables, and temporary tables Use complex subqueries Use a greater number of scalar SQL functions Use advanced SQL constructs, such as recursive SQL and table expressions Define User-Defined Distinct Types and User-Defined Functions Avoid several of the most common causes for poorly-performing SQL

1

  • Introduction

  • Identify the purpose of the clauses in the SELECT statement
    Describe the key differences among the IBM DB2 platforms
    Describe and use some of the OLAP features of DB2, such as GROUPING functions like CUBE and ROLLUP, and the RANK, DENSE_RANK and ROW_NUMBER functions
2

  • Create Objects

  • Code statements to- Create tables and views, Alter tables, Create indexes, Implement referential integrity (RI), and Define triggers and check constraints
    Identify impacts and advantages of referential integrity, including impacts of delete rules
    Identify considerations when using triggers and check constraints
    Define and make use of INSTEAD OF triggers
3

  • Join

  • Retrieve data from more than one table via inner and outer joins
    Use outer joins (LEFT, RIGHT, FULL)
    Use ANTI JOINS
    Join a table to itself
    Use UNION and UNION ALL
    Use EXCEPT and INTERCEPT
4

  • CASE, CAST, Summary Tables, and Materialized Query Tables

  • Identify when CASE expressions can be used
    Code CASE expressions in SELECT list and in the WHERE clause
    Identify when CAST specifications can be used
    Identify the advantages of using Summary (Materialized Query) Tables and Temporary tables
    Identify the advantages of using Materialized Query Tables (MQTs) Identify when and how to use Temporary tables
5

  • Using Subqueries

  • Code subqueries using the ALL, ANY/SOME, and EXISTS keywords
    Code correlated subqueries
    Choose the proper type of subquery to use in each case
6

  • Scalar Functions

  • Extend your knowledge of scalar functions which- Manipulate arithmetic data, Manipulate date values, and Manipulate character data
    Examples of scalar functions that are addressed in this course- SUBSTR
    POSSTR
    COALESCE/VALUE
    DECIMAL
    ROUND
    DIGITS
    CHAR
    DATE/TIME
7

  • Table Expressions and Recursive SQL

  • Identify reasons for using table expressions and recursive SQL
    Use nested and common table expressions
    Identify the difference between views and table expressions
    Code recursive SQL
    Control the depth of recursion when coding recursive SQL
8

  • UDTs/UDFs and Performance

  • Describe the concepts behind User-Defined Types, User-Defined Functions and Stored Procedures
    Predict when queries will use indexes to get better performance
    Identify concepts of predicate processing
    State introductory concepts about index structure
    State general best practices advice

Audience

This intermediate course is for experienced SQL end users, application programmers, database administrators, and user support staff who need more advanced knowledge of SQL.

Language

English

Prerequisites

You should have experience with: coding and executing basic SQL statements.

$2,325

Length: 3.0 days (24 hours)

Level:

Not Your Location? Change

Course Schedule:

Schedule select
06
Nov
Monday
9:30 AM ET -
5:30 PM ET
Filling Fast
Available
Schedule select
20
Feb
Tuesday
9:30 AM ET -
5:30 PM ET
Filling Fast
Available
Loading...