StackOverflow Questions for Tag: database-theory

ranzy
ranzy

Reputation: 469

candidate keys from functional dependencies

Score: 35

Views: 82802

Answers: 4

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Phil
Phil

Reputation: 3994

What does the symbol "⊇" mean?

Score: 5

Views: 11772

Answers: 3

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Kathandrax
Kathandrax

Reputation: 1054

Can modern SQL syntax be translated into a relational algebra tree?

Score: -1

Views: 320

Answers: 1

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DatabaseTheory: Difference between 'many to one' and 'many to onlyOne' relationship

Score: 1

Views: 2889

Answers: 2

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jl6
jl6

Reputation: 6422

How do I implement MVCC?

Score: 8

Views: 3633

Answers: 4

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rigidweight
rigidweight

Reputation: 15

3NF Normalisation Question, can I use a derived FD to determine a relation is not in 3NF?

Score: 0

Views: 531

Answers: 1

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Seun Osewa
Seun Osewa

Reputation: 5033

The Relational Model & Queries That Naturally Return Duplicate Rows

Score: -1

Views: 809

Answers: 5

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Aeglasin
Aeglasin

Reputation: 165

ORA-01841 happens on one environment but not all

Score: 0

Views: 221

Answers: 1

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Sigmund
Sigmund

Reputation: 59

How to use 2NF definition to show that a relation is in 2NF

Score: 1

Views: 98

Answers: 0

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Sigmund
Sigmund

Reputation: 59

Compensation Log Records (CLR) in UNDO-Phase of Database Recovery

Score: 0

Views: 361

Answers: 1

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KMAHY
KMAHY

Reputation: 48

Database issue: 2 tables with identical structure because of the quality of the data

Score: -1

Views: 58

Answers: 1

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David542
David542

Reputation: 110512

Groupings of queries

Score: 7

Views: 502

Answers: 4

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Yahya Uddin
Yahya Uddin

Reputation: 28951

What is the difference between F+ (closure of F) and F* (cover of F) for Functional Dependencies?

Score: 1

Views: 1119

Answers: 1

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AlexH
AlexH

Reputation: 1127

Dependency preservation: Why is this decomposition dependency preserving?

Score: 1

Views: 1771

Answers: 1

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Alexander Nenartovich
Alexander Nenartovich

Reputation: 826

BCNF of a Relation with no FDs

Score: 3

Views: 2601

Answers: 1

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Studentguy
Studentguy

Reputation: 11

what is arity of query in database theory

Score: 1

Views: 596

Answers: 0

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uh_big_mike_boi
uh_big_mike_boi

Reputation: 3470

Is there ALWAYS a "base table" in any database query?

Score: 0

Views: 1949

Answers: 4

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Gary
Gary

Reputation: 67

Normalization Theory Explanation needed

Score: 0

Views: 196

Answers: 2

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user6223373
user6223373

Reputation:

Natural Join in Relational Algebra - Database Theory

Score: -1

Views: 1046

Answers: 2

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Darsolation
Darsolation

Reputation: 35

How to determine the candidate key by functional dependancies in relational database theory

Score: 0

Views: 44

Answers: 1

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