Emil Kotrč

Speaker Details

Bio
Emil Kotrč, an experienced principal software architect with a demonstrated history of working in the computer software industry. He is skilled in IBM Db2, Agile Methodologies, Databases, and IBM mainframe.
Emil is an active member of IDUG, serving on the IDUG Content Committee and speaking at international conferences (including the upcoming NA 2021 conference).
Past presentation

15 junij 2022
11:30 - 12:30
European SQLAdria Seminar – Vodice 2022 Db2 12 Function Levels 501-510 - What You Need to Know

An access path selected by Db2 drastically affects how well or how badly your SQL statement and overall application perform. Developers should be familiar with what the access path is and how to read it, while database administrators need to be able to maintain workload stability avoiding performance degradations and resource consumption spikes. This session will talk about how to interpret an access path with EXPLAINs, discuss how to influence the optimizer, and cover the ways to maintain and manage access paths for both static and dynamic SQL statements


14 junij 2022
15:00 - 16:00
European SQLAdria Seminar – Vodice 2022 A Handful of Application Development Goodies in Db2 12
In this presentation we will focus on the main benefits of Db2 12 from the application developer perspective. In the first part, we will review some of the new SQL features in Db2 12 and we will also discuss their main advantages and possible use cases. The second part of the presentation will be dedicated to other topics related to the application development, especially the continuous delivery model and the performance improvements. We will also show recent application development enhancements delivered in Db2 12 function levels.
Objectives:
1. A brief overview of Db2 12, introduction of continuous delivery from the application developer perspective.
2. Overview of new features related to application development - enhanced MERGE, enhanced Triggers, SQL pagination, improvements in the Temporal tables support, …
3. Recent enhancements in Db2 12 function levels
4. Discussion of other features beneficial for the application development - dynamic plan stability, performance improvements, continuous delivery, …

13 junij 2022
12:15 - 13:00
European SQLAdria Seminar – Vodice 2022 The Joy of Joins
Most of the application developers are used to use joins - cross joins, inner and outer joins. All resonate well. However, what if we start speaking about lateral join, anti join, self join, does it still look familiar to you? What if we take a look at the predicate evaluation phases in relation to joins - before, during, and after; especially in case of multi-table joins. Did you know, that you can even use joins to unmask the masked data? Do you understand the difference between the join types available in Db2? These are some of the questions we will be addressing.
In this presentation we will go through the basics to more advanced topics on joins. We will also show some useful tricks with joins.
1. Objectives
1. A brief introduction to joins - inner vs outer
2. More advanced join techniques - anti join, self join, lateral join
3. Join methods - nested loop join, merge scan, hash join, hybrid join
4. Predicate evaluation phases - before, during, after join

27 maj 2021
10:30 - 11:30
European SQLAdria Seminar – Virtual Event 2021 Experiences with Db2 12 Continuous Delivery - an Update
Db2 12 introduced the mechanism of continuous delivery. In this presentation we will explain the concepts of continuous delivery and will show what does it bring to the application developers and database administrators. We will also discuss experience with the continuous delivery model, point out a few items that need extra attention, and will show what is included in the existing function levels.
This updated presentations will show what is new in this area and will briefly speak about the challenges for a typical vendor.
Objectives
1. Principles of continuous delivery
2. Explanation of code, catalog, and function levels
3. Benefits of continuous delivery for application developers and database administrators
4. Experience with continuous delivery

28 maj 2019
15:30 - 16:15
European SQLAdria Seminar – Šibenik 2019 Machine Learning in Examples
Machine Learning (ML) is a rapidly growing field of the computer science that has far reaching applications even outside the academics and specialized industries. Thanks to the Big Data (r)evolution, Machine Learning is becoming popular even in smaller businesses. Moreover, there are many tools and projects that allow running ML algorithms even by enthusiasts without a mathematical or statistical background.
In this presentation we will show some of the most common ML algorithms together with their prevalent use cases and we will demonstrate them on very simple examples. We will also discuss a possible integration with DB2.
Objectives:
1. A very brief introduction into ML and basic ideas.
2. A very brief introduction into the available machine learning tools.
3. Discuss the typical use cases on simple examples.

27 maj 2019
16:00 - 17:00
European SQLAdria Seminar – Šibenik 2019 Unsung Heroes of the Db2 for z/OS Application Development, Db2 12 Edition
Db2 is constantly evolving over the years, bringing new features with every new release. It might be hard for the developers and administrators to catch up with all the new useful technologies and possibilities. Often, even the features that are not brand new and that have the potential to help reducing the costs by improving the performance or making the application simpler, are not yet fully exploited.
This presentation will list and remind some features that might help application developers to use more power of the Db2 engine. The discussed topics will cover advanced SQL like the MERGE statement, SELECT from data change references, multi-row operations, lock avoidance techniques, built-in functions like GENERATEUNIQUE(), timestamp functions, and some other small tips. We will also cover highlighted features of Db2 12.
Objectives:
1. Review some of the new features brought through the Db2 releases.
2. Advanced SQL statements like MERGE, SELECT FROM table change reference.
3. Multi-row operations, cursors.
4. Lock avoidance techniques.
5. Several smaller tips using built in functions.

26 maj 2019
18:00 - 18:30
European SQLAdria Seminar – Šibenik 2019 Continuous Delivery

12 junij 2018
15:45 - 16:30
European SQLAdria Seminar – Šibenik 2018 DSNUTILU for fun and profit
Db2 for z/OS comes with a set of Stored Procedures that can help application developers to perform various administrative tasks. The main benefits of these procedures are their ease of use via the SQL CALL statement and the simplification of processes. One example of the supplied stored procedures is DSNUTILU, which allows Db2 utility operations from the application programs.
In this presentation we will show how to use DSNUTILU, we will discuss possible real life scenarios, and the benefits and drawbacks of its usage in local and remote application programs.
Objectives:
1. An overview of Db2 supplied stored procedures.
2. Description of DSNUTILU and examples of possible use cases.
3. Discussion of DSNUTILU benefits and drawbacks.

11 junij 2018
15:00 - 16:00
European SQLAdria Seminar – Šibenik 2018 A Handful of Application Development Goodies in Db2 12
Db2 12 for z/OS is a version that both, application developers and database administrators, will love. It does not only come with a set of useful new features, but it also brings a new continuous delivery model, which will be beneficial for both - developers will enjoy new features delivered faster and administrators will like the proven stability.
In this presentation we will focus on the main benefits of Db2 12 from the application developer perspective. In the first part, we will review some of the new SQL features in Db2 12 and we will also discuss their main advantages and possible use cases. The second part of the presentation will be dedicated to other topics related to the application development, especially the continuous delivery model and the performance improvements.
Objectives:
1. A brief overview of Db2 12, introduction of continuous delivery from the application developer perspective.
2. Overview of new features related to application development - enhanced MERGE, enhanced Triggers, SQL pagination, improvements in the Temporal tables support, …
3. Discussion of other features beneficial for the application development - dynamic plan stability, performance improvements, continuous delivery, …

13 junij 2016
16:30 - 17:15
European SQLAdria Seminar – Šibenik 2016 Unsung Heroes of the DB2 for z/OS Application Development
DB2 is constantly evolving over the years, bringing new features with every new release. It might be hard for the developers and administrators to catch up with all the new useful technologies and possibilities. Often, even the features that are not brand new are not yet fully exploited despite they have a potential to help reducing the costs by improving the performance or making the application simpler. 
This presentation will list and remind some features that might help application developers to use more power of the DB2 engine. The discussed topics will cover advanced SQL like the MERGE statement, SELECT from data change references, multi-row operations, lock avoidance techniques, built-in functions like GENERATE_UNIQUE(), timestamp functions, DB2 supplied stored procedures, and some other smaller tips. 
Objectives: 
1. Review some of the new features brought through the DB2 releases. 
2. Advanced SQL statements like MERGE, SELECT FROM table change reference. 
3. Multi-row operations, cursors. 
4. Lock avoidance techniques. 
5. Built-in functions and supplied Stored procedures. 
6. Several smaller tips. 

 

sqladria

SQL Adria is the independent, non-profit organization that gathers relational database users for Croatia and Slovenia. It was founded 1994. and in the same year it has become the regional user group.

Follow us

facebook
linkid
twitter

 

Events in 2022

VODICE -  13th - 16th June 2022