Desenvolvido por:   Duke University

  • Daniel Egger

    Ministrado por:    Daniel Egger, Executive in Residence and Director, Center for Quantitative Modeling

    Pratt School of Engineering, Duke University

  • Jana Schaich Borg

    Ministrado por:    Jana Schaich Borg, Assistant Research Professor

    Social Science Research Institute
Informações básicas
Compromisso5 semanas, 3-5 horas por semana
Idioma
English, Legendas: Russian
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4.7 stars
Average User Rating 4.7Veja o que os aprendizes disseram
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Duke University
Duke University has about 13,000 undergraduate and graduate students and a world-class faculty helping to expand the frontiers of knowledge. The university has a strong commitment to applying knowledge in service to society, both near its North Carolina campus and around the world.
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Classificações e avaliações
Avaliado em 4.7 de 5 decorrente de 1,026 avaliações

There are some typos in Week 5 Teradata exercise needed to be corrected

MySQL lessons, quizzes and assignments are very well organised and taught. But was not very happy with the Teradata part. Overall it was a very good course! Jana is a fantastic teacher.

What this course can improve is it should adopt the habit of thinking more instead of writing. Because in the week 5, the quiz is much more difficult than all the exercises we have done in previous weeks. And we don't have the guide step by step like previous weeks. I do know we have a week 5 quiz guide. However, when you write queries, sometimes, you do think your logic is right and query is right, why can't I get the same answer with the choices?

And when I finish the quiz and look back to the answer, I even can't find the logic difference between answers and mine but the reality is I can't get the correct result. There is only one diff I have found in one specific question, that is, I didn't use the same format to define one constraint. But I do think my way is also fine and I also get an answer I think is totally correct from the logic.

So I do suggest the answers should not be single sometimes, you should consider some specific formats or situation when students write their own queries. Don't give simple answer, give the reason why you are correct.

The relational schema for the dognition database should have been provided.



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