Geoffrey Wiland

Senior Instructor, Consultant & Technical Editor Oracle Database, SQL, PL/SQL, XML

CompTIA CTT+ Certified Trainer 



Geoff has over twenty-five years of extensive experience in all aspects of Information Technology. He is a trainer and consultant specializing in corporate training, management consulting, system design, and program implementation. He has extensive experience training in a host of modern development concepts, tools, and languages. In recent years he has specialized in Oracle SQL and PL/SQL training.

Success Stories

  • Training success stories:
    • Geoff has presented talks, webinars and trainings to Oracle User Groups, companies, and individuals on a host of topics including:
      • Introduction to Oracle Database and SQL
      • Advanced SQL Queries for Oracle Databases
      • Oracle PL/SQL Programming Workshop
      • Understanding and Using PL/SQL Arrays and Bulk Processing
      • Using Oracle Analytic Functions
      • The Power of Oracle Regular Expressions
      • Better Oracle Analytics with Advanced SQL Aggregations
      • Record Locking in APEX and other Connections Pooled Environments


    • Geoff’s course evaluations have consistently averaged over 4.85 out of a maximum of 5.00 in all categories. Some recent testimonials and course evaluations included the following quotes:
      • The course was well tailored to the needs of our group and the instructor was very flexible about spending more time on topics of particular relevance to our team.
      • The instructor was dynamic and tailored the course to the level required of the students.
      • The training program was perfect. The class and instructor were the best I have taken in my tenure here.
      • The gentleman can teach like no one else I’ve met. Please don’t accept a substitute!
      • This has to be one of the best training classes I’ve ever taken. Can’t wait for the next class!
      • “I think the instructor, Geoffrey Wiland, was really good at explaining the code and the concepts. I would recommend him for future sql training.”
  • Consulting success stories:

Geoff has developed special expertise in the design and implementation of database applications. Recent successful assignments include:

    • List billing, accounts receivable and commission systems for the medical insurance industry
    • System integration and upgrades for the energy industry
    • Litigation case tracking for the legal profession
    • Automation of electronic reporting of 1099 data to the IRS
    • Candidate review system for the executive search industry
    • Expense reporting system for the financial industry
    • Inventory control and analysis for the public sector
    • Contract and commission systems for the automobile insurance industry
    • Financial analysis of new business ventures for the automobile parking industry



  • All versions of Oracle from 8i through 20c
  • Oracle development tools: SQL*Plus, SQL Developer, TOAD, SQL Navigator
  • Extensive experience teaching instructor-led classes in both on-site and eLearning environments
  • CompTIA CTT+ Certified Trainer
  • Oracle Database Certified Administrator


Industry Experience

  • SkillBuilders (1996 – present): Senior Instructor teaching Introductory and Advanced Oracle Subjects
  • Wiland Computer Enterprises (1989-present): Principal Computer training and consulting company specializing in corporate training, management consulting, system design, and program implementation.


  • S. in Computer Science, Princeton University
  • S. in Management, C.W. Post College
  • S. in Electrical Engineering, Polytechnic Institute of New York


Teaching Philosophies:

  • Bring meaning to learned skills through real-life examples and experiences.
  • Tailor classes to specific client and student needs.
  • Bring fun to the classroom to encourage active participation and enhance learning.

Other Members