Abstract Confusions

Complexity is not a cause of confusion. It is a result of it.

Tag Archives: Interview Questions

Some Interesting Requirements / Questions

Over the time I received few interesting requirements and questions. Few of them are straight forward that you do it in minutes, and few other questions are strange enough that some time have to sit and etch out the solution which is not top of the head. It would be only fair to share the information here. I would give you the requirement / question, if you can answer them, please add in comments.

You can use any language you like (except 3rd requirement). I was forced to use PL/SQL because of the project requirements.

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Oracle Application Express (APEX) Interview Questions

Oracle Application Express (APEX) is a rapid application development tool developed by Oracle for developing rich database centric applications. It first started as HTMLDB and later renamed as Application Express, though it is often shorten as APEX. APEX is a free feature that can be enabled from Oracle database v 9.2 onwards. It means, Oracle Application Express can be installed with the free version of Oracle 10g Express Edition. It is easy to create and run web applications which look professional and scalable. Of recent there is increased interest on APEX skills.

I had an opportunity to interview few people for evaluating their APEX skills. Following is the selected set of questions I used in that interview. The difficulty level is basic to intermediate level. The main idea is to identify the promising people who had real experience on APEX. I have added links to the concepts, documentation. Read more of this post

Interesting Interview Question: Check if a String is Rotated

Found an interesting interview question at Stackoverflow.

How will you find a string ‘a’ is a rotated string of some string ‘b’ (say, or some other reference string, but known)?

Example:
a= ‘stackoverflow’, b = ‘overflowstack’, then ‘a’ is rotated string of ‘b’.

a= ‘stackoverflow’, b= ‘flowrevostack’, then ‘a’ is NOT rotated string of ‘b’.

What makes this interview question interesting is seemingly difficult question (check Jon Skeet’s answer, he admitted the actual answer is simple and elegant).

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