1970 E.F. Codd has started a revolution with his paper 'A relational model of data for large shared data banks, Communications of the ACM, Volume 13, Issue 6 (June 1970)' that finally led to the today's omnipresent database query language SQL.

This little app shows some primitive and derived operations with the following information:
* SQL92 and SQL86/89 sample queries,
* the results of the queries and
* appropriate descriptions.

Furthermore the SQL test script that has been used for the calculation of the samples can be displayed.

The app is interesting for the first contact with the database subject and for all who are using SQL86/89 queries for over two decades now and finally want to change to SQL92 also ;)

What’s New

Version 2.1

• SQL keyword highlighting
• Added support for Dynamic Type
• Added support for landscape mode

Ratings and Reviews

3.2 out of 5
20 Ratings
20 Ratings
Mohgeroth ,

Is what it says, elementary

Elementary SQL, very elementary. If you've written SQL on the job anywhere chances are this will teach you little to nothing. It's very bland though but is focused on simple presentation. If your learning or taking a class, the visuals are nice for things like outer joins. Good start!

Ddd1600 ,

Exactly what I was looking for

Simple, very very simple my only complaint is theres not enough content to really justify the app but I still like it

Keither713 ,

Good beginning primer

Excellent for beginners using basic syntax example & explanations. Look forward to more advanced priming!


Dr. Ralph Heider
26.3 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, German
Age Rating
Rated 4+
© Kay Heider, Dr. Ralph Heider


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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