Oracle – Advanced Analytics I. (ORA7)

Databases, Data Analytics

Designed for experienced Oracle SQL users, this course deepens practical skills in data analysis, query tuning, and performance. It focuses on nested queries, hierarchical queries, and analytical functions to handle complex data reliably.

After completing the course, participants will learn advanced techniques for analysis and optimization, including advanced aggregation, scoring and ranking functions, and SQL performance tuning for large datasets and faster reporting.

THIS TRAINING COURSE WILL HELP YOU:

  • Use nested and hierarchical queries with conditional logic
  • Apply advanced aggregation methods including ROLLUP/CUBE
  • Implement analytic functions for in-depth data analysis
  • Use scoring and ranking functions to compare and evaluate data
  • Optimize SQL queries for high-volume data processing

WHO SHOULD ATTEND?

  • Data analysts working with large Oracle datasets
  • Developers who need to optimize SQL queries and reports
  • BI specialists and advanced SQL users improving analytics

COURSE LOCATION AND AVAILABLE DATES



Choose whether to attend in person in our classroom or join online. You can select your preferred format during registration. Learn more about hybrid training.
Brno + online (optional)
Praha + online (optional)
21–22 Sep 2026
544 €
CZECH
Private training

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Course content:

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  • Basic techniques – summary and extension of topics
    1. Nested subqueries in WHERE and HAVING clauses
    2. Nested subqueries in the FROM clause - inline views
    3. ALL, SOME, ANY, IN and EXISTS operators in subqueries
    4. NOT IN and handling NULL values
    5. Multi-column subqueries
    6. Correlated subqueries
    7. Subquery factoring and the WITH clause
    8. Hierarchical queries
  • Advanced aggregation
    1. GROUPING SETS
    2. Aggregation with subtotals using ROLLUP
    3. Cross aggregation using CUBE
    4. GROUPING, GROUP_ID and GROUPING_ID functions
    5. Composite columns
    6. Grouping combined with joins
    7. Approximate aggregate functions – purpose and use
  • Oracle Analytics
    1. Benefits of analytic functions
    2. Processing of analytic functions
    3. Ranking (scoring) functions and comparisons
    4. ROW_NUMBER function
    5. RANK and DENSE_RANK
    6. NTILE and WIDTH_BUCKET – comparison and use cases
    7. Partitioning analytic datasets
    8. Cumulative distribution - CUME_DIST, PERCENT_RANK
    9. RATIO_TO_REPORT function
    10. Inverse percentile - PERCENTILE_CONT and PERCENTILE_DISC
    11. Working with sliding windows (windowing functions)
    12. Analytic mode of aggregate functions SUM, COUNT, AVG etc.
    13. Cumulative sums and moving averages
    14. Physical, logical and functional window offsets
    15. LAG and LEAD analysis
    16. FIRST_VALUE and LAST_VALUE
    17. NTH_VALUE
    18. LISTAGG value concatenation
    19. FIRST and LAST
    20. Combining analytic and aggregate functions
    21. Using analytic functions as aggregate functions
Prerequisites:
Practical experience with Oracle SQL and basic database knowledge.
Recommended previous course:
Oracle Database – Programming in PL/SQL (ORA5)
Schedule:
2 days (9:00-17:00)
Price per person:
544.00 € ( 658.24 € incl. 21% VAT)

Training and learning environment

IT classroom with desks, computer monitors, and a projection screen at the front.
What does the environment for in-person IT courses look like?We hold training courses in our own classrooms equipped with modern computer equipment for each participant and a large projection screen. Each workstation is fitted with a powerful computer for seamless practical exercises, and the environment supports a calm, friendly atmosphere during training.
IT classroom with desks, computer monitors, and a projection screen at the front.
Do I need to bring my own laptop to the classroom IT course?Our training rooms are fully equipped, so you do not need to bring your own laptop. A modern computer with all necessary hardware and software is ready for you at your workstation.
Sample ICT Pro certificate of successful completion of an IT training course.
Will you receive an official certificate after completing an IT course?Yes, upon successful completion of the training course, you will receive an official ICT Pro certificate confirming your participation and acquired technical skills. You can use it to verify your qualifications or add it to your professional profile.
Exterior view of the COMGUARD office building on Sochorova Street in Brno.
Where can you find our training center in Brno?The premises of the ICT Pro training center are located on the 1st floor of the COMGUARD building at Sochorova 38 in Brno. Positioned on the border of Žabovřesky and Komín, the location is easily accessible by both car and public transport.
Exterior view of the Opatov Park office building in Prague, Chodov.
Where can you find our training center in Prague?The premises of the ICT Pro training center are located on the 1st floor of the Opatov Park building at Líbalova 1, Prague 11 – Chodov. The location provides a comfortable environment for your education with convenient access.
Fully equipped kitchenette with a coffee machine, microwave, sink, and shelves with cups and glasses.
What facilities and refreshments are available to you during training breaks?Our training centers feature a fully equipped kitchenette for a comfortable break during your courses. The facilities include a coffee machine, microwave, kettle, and a wide selection of drinks and snacks.
Coffee station featuring an automatic coffee machine, yellow and white cups, glasses, and syrups.
What beverage refreshments are available during your course?A beverage station with a coffee machine, teas, syrups, and water is at your disposal throughout the entire training session. You can enjoy a coffee or another drink of your choice anytime during breaks.
Table with sweet pastries, fruit syrups, a water dispenser, and glasses set up for training participants.
What light refreshments are provided for you during the courses?During course breaks, participants can enjoy light sweet snacks, pastries, and fruit syrups to mix their own drinks. Fresh water dispenser and plates are also available for your convenience.
Wicker baskets filled with packaged savory snacks, sweet biscuits, and snack bars.
Should I bring my own snacks to ICT Pro training?There is no need to. A wide selection of savory snacks, sweet biscuits, and snack bars is available for you during breaks. Boost your energy for all-day focus right inside the training center premises.
Outdoor wooden terrace with green surroundings by the glass building of the training center.
Can you spend training breaks in the fresh air?Yes, an outdoor terrace is available at our training center. During breaks between learning sessions, you can relax in the fresh air in a pleasant green environment.
Spacious outdoor wooden terrace with seating and views of the surrounding area.
Where can you relax during course breaks?Our training center features a spacious outdoor terrace with seating options. During breaks between learning sessions, you can step outside to relax and recharge in the fresh air.