Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
query language
|
| gptkbp:contrastsWith |
tuple relational calculus
|
| gptkbp:expressedIn |
queries as logical formulas
|
| gptkbp:field |
database theory
|
| https://www.w3.org/2000/01/rdf-schema#label |
domain relational calculus
|
| gptkbp:influencedBy |
gptkb:first-order_logic
|
| gptkbp:introducedIn |
1970s
|
| gptkbp:relatedTo |
gptkb:relational_calculus
relational algebra |
| gptkbp:usedIn |
relational databases
|
| gptkbp:uses |
domain variables
|
| gptkbp:bfsParent |
gptkb:relational_calculus
|
| gptkbp:bfsLayer |
8
|