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I am a Computer Science student and we are currently learning Relational Algebra. I wish to be able to write Relational Algebra Queries and test to see what they return. Thus, I am looking for a Database Management System that can understand Relational Algebra Queries.

My Criteria are:

  • Should be for all intents and purposes a Database Management System. That is:
    • I should be able to create tables.
    • I should be able to insert data into tables.
    • I should be able to query tables, and have it output the result of the query.
    • Although I don't really care about the exact implementation of it.
  • Must accept Relational Algebra Queries. Again, I don't care about the implementation. It could translate it to SQL and then query an SQL Database if it wants, as long as it can understand the queries I give it.

This is for educational purposes.

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  • I am not very familiar with the whole database ecosystem and functionalities. Aren't MySQL queries relational algebra queries or are they set operations? You probably did take a look at that already, right?
    – Franz Skuffka
    Oct 27, 2015 at 4:15
  • Command line application or REPL is OK?
    – meisyal
    Nov 22, 2016 at 2:40
  • But how do you want to express your relational algebra? Strings? Graphs?
    – einpoklum
    Dec 9, 2019 at 11:23

1 Answer 1

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You can try des.sourceforge.net.

There you will find DES, which includes a relational algebra interpreter for your RA queries and allows you to define relations and insert data with SQL DDL statements.

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