Example image of eyePlorer eyePlorer map for 'Projection (relational algebra)': Attribute Relational algebra Unary operation Set (mathematics) Tuple Projection (set theory) Set theory Existential quantification First-order logic Extension (predicate logic) ISBL Alphabet Monoid String (computer science) String operations Header Restriction Subset Superkey Language Integrated Query Select (SQL) Coarse structure Pi (letter) Projection Rete algorithm OLAP cube
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