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Oracle SQL performance

It is extremely hard to write efficient SQL without having a thorough understanding of the Oracle optimizer. We therefore first discuss its characteristics, and determine where, and how, we can influence its behaviour. A number of techniques are discussed: creation and use of indexes, use of hints, the importance of statistics gathering. The tools available to evaluate the optimization process and the queries we write, are discussed as well: Explain, SQL Trace, autotracce.

Finally, the impact of the use of PL/SQL as an alternative to writing SQL statements is introduced, and its advantages discussed.

Participants have the opportunity to practise all the discussed topics during practical labs.


No public sessions are currently scheduled. We will be pleased to set up an on-site course or to schedule an extra public session (in case of a sufficient number of candidates). Interested? Please contact ABIS.

Intended for

Analyst programmers, technical designers, DBAs, functional analysts.


A basic knowledge of SQL and of the Oracle database structure is required (see Oracle fundamentals course).

Main topics

Training method

Classroom instruction with exercises.


2 days.

Course leader

Kris Van Thillo.

Global score

3.9/5 (based on 50 evaluations)


Goed niveau. Zeer interessant en direct toe te passen (, )
A+++ (, )
zeer interessant, misschien niet alles van toepassing in onze situatie (, )
very good course (, )
ok, maar in ons geval meer als achtergrondinfo (, )
goed, duidelijke cursus, voldoende ruimte om vragen te stellen (, )
Goed en grondig uitgelegd. Zeer interessant (, )
excellent (, )
Er zou een elektronische versie beschikbaar moeten zijn, met referentiemateriaal. (, )
one extra day -> exercises (, )

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