Remote Training: Roxie ECL (Part 1) - Indexes and Queries

Remote Training: Roxie ECL (Part 1) - Indexes Queries

The class will be held remotely via Microsoft Teams. Your instructor will contact you before the class with login information.

NOTE: RELX and LexisNexis employees should register using your work email address and the approved promo code provided by their manager or contact training@hpccsystems.com.

This class is for developers who want to extend their knowledge of ECL to developing Roxie queries for end-user use. In this course you will learn the benefits of payload indexes as well as use of the indexed joins that make query results fast. Anyone planning to write ECL code to provide final product data to end-users should attend this course.

Note: This course is the first in a two-part Roxie series. People who attend the Roxie ECL (Part 1) - Indexes and Queries class, should also attend the Roxie ECL (Part 2) – Complex Query Development. Both classes are presented in the same week.

Course Length: 2 days

Class Prerequisites: Students must have attended the Introduction to ECL (Part 1) - Concepts and Queries and the Introduction to ECL (Part 2) - Introduction to ECL (Part 2) – Data Profiling and Transformation. Students are welcome to bring their own laptops to take away the code and examples from the class.

Topics include:

• Defining and Creating INDEXes
• Using FETCH
• Creating Roxie Queries (STORED)
• Testing queries in hThor
• Deploying to Roxie
• Payload Indexes
• Full and Half-Keyed JOINs
• Optimizing Queries (LIMIT, ATMOST, KEEP)

Class will begin at 9am and conclude at 4:30pm. Breaks will be provided throughout the day for lunch and lab assignments. Your instructor will provide more information before the class begins.