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0 points9rx7mo ago0 comments

Interestingly, the inventor of relational algebra for database management put the "FROM" first in his query language: https://dl.acm.org/doi/pdf/10.1145/1734714.1734718

0 comments

What section did you see this? I see GET (i.e. SELECT) first.

9rxOP7mo ago

Section 3.3. "SELECT" only comes first if you omit "FROM". In SQL, if it allowed, that would be something like: `SELECT table.column`.

Tuple Variables and their Range?

I don’t think I see what you see. From 3.3:

    RANGE PART P
    GET W (P.P#,P.PNAME,P.QOH):(P.QOH<25)

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