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Database Theory

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TopicsLast post
The intellectual curiosity of `NatJoin`, `InnerUnion`By AntC1 ReplyLast post: 1 day ago · tobega
1 day ago
tobega
ANNOUNCE: a relational algebra with only one primitive operator (tentative) (please check/critique)By AntC · 
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40 RepliesLast post: 1 day ago · dandl
1 day ago
dandl
Why 'Join'?By AntC6 RepliesLast post: 4 days ago · Vadim
4 days ago
Vadim
Relations as sets of columnsBy Vadim2 RepliesLast post: 1 month ago · Vadim
1 month ago
Vadim
What do set-based operations buy us?By tobega · 
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52 RepliesLast post: 3 months ago · Dave Voorhis
3 months ago
Dave Voorhis
A plague on 'Relationally Complete'By AntC1 ReplyLast post: 3 months ago · dandl
3 months ago
dandl
Key questionsBy AntC · 
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17 RepliesLast post: 6 months ago · Brian S
6 months ago
Brian S
Where can I find paper "Further Normalization of the Data Base Relational Model"?By VictorL3 RepliesLast post: 7 months ago · AntC
7 months ago
AntC
WeirdBy AntC4 RepliesLast post: 8 months ago · dandl
8 months ago
dandl
C# 9.0 has data classesBy dandl0 RepliesLast post: 12 months ago · dandl
12 months ago
dandl
Looking for a reference/piece of terminology: 'generative' dependencies(?)By AntC6 RepliesLast post: 1 year ago · AntC
1 year ago
AntC
Big birthday coming up ...By AntC0 RepliesLast post: 1 year ago · AntC
1 year ago
AntC
Codd 1970 'domain' does not mean Date 2016 'type' [was: burble about Date's IM]By AntC · 
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219 RepliesLast post: 1 year ago · Dave Voorhis
1 year ago
Dave Voorhis
What are the nodes in a Visual RA?By dandl · 
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30 RepliesLast post: 1 year ago · johnwcowan
1 year ago
johnwcowan
SUMMARIZE PER, OUTER JOIN and image relationsBy dandl · 
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47 RepliesLast post: 1 year ago · Dave Voorhis
1 year ago
Dave Voorhis
Relational Theory and the Russell ParadoxBy Erwin · 
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48 RepliesLast post: 1 year ago · johnwcowan
1 year ago
johnwcowan
Relational Lattice: 2019 Report CardBy AntC · 
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17 RepliesLast post: 1 year ago · AntC
1 year ago
AntC
Extracting a domain from a relationBy Vadim3 RepliesLast post: 1 year ago · Vadim
1 year ago
Vadim
How to resolve the type system-relational algebra mismatchBy dandl · 
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27 RepliesLast post: 2 years ago · Dave Voorhis
2 years ago
Dave Voorhis
TTM's IM: a 'solution' to a question nobody asked; then how else to express squares are rectangles?By AntC · 
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19 RepliesLast post: 2 years ago · johnwcowan
2 years ago
johnwcowan
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