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  2. Tuple relational calculus - Wikipedia

    en.wikipedia.org/wiki/Tuple_relational_calculus

    To determine whether a query expression is safe we will derive two types of information from a query. The first is whether a variable-column pair t.a is bound to the column of a relation or a constant, and the second is whether two variable-column pairs are directly or indirectly equated (denoted t.v == s.w).

  3. Power Query - Wikipedia

    en.wikipedia.org/wiki/Power_Query

    Power Query is built on what was then [when?] a new query language called M.It is a mashup language (hence the letter M) designed to create queries that mix together data. It is similar to the F Sharp programming language, and according to Microsoft it is a "mostly pure, higher-order, dynamically typed, partially lazy, functional language."

  4. Subset sum problem - Wikipedia

    en.wikipedia.org/wiki/Subset_sum_problem

    Let A be the sum of the negative values and B the sum of the positive values; the number of different possible sums is at most B-A, so the total runtime is in (()). For example, if all input values are positive and bounded by some constant C , then B is at most N C , so the time required is O ( N 2 C ) {\displaystyle O(N^{2}C)} .

  5. Graph database - Wikipedia

    en.wikipedia.org/wiki/Graph_database

    Property Graph; consisting of a set of objects or vertices, and a set of arrows or edges connecting the objects. Vertices and edges can have multiple properties, which are represented as key–value pairs. Includes PGQL, an SQL-like graph query language and an in-memory analytic engine (PGX) nearly 60 prebuilt parallel graph algorithms ...

  6. A woman bypassed multiple security checkpoints to get on a ...

    www.aol.com/woman-bypassed-multiple-security...

    Investigators are trying to determine how a woman got past multiple security checkpoints this week at New York’s JFK International Airport and boarded a plane to Paris, apparently hiding in the ...

  7. SPARQL - Wikipedia

    en.wikipedia.org/wiki/SPARQL

    The SPARQL query processor will search for sets of triples that match these four triple patterns, binding the variables in the query to the corresponding parts of each triple. Important to note here is the "property orientation" (class matches can be conducted solely through class-attributes or properties – see Duck typing ).

  8. Oklahoma teacher, wife of police chief Emma Hancock sentenced ...

    www.aol.com/oklahoma-teacher-wife-police-chief...

    An Oklahoma mayor's daughter who is also the wife of the town's police chief was found guilty on Wednesday of soliciting sex from a 15-year-old student she taught.

  9. Julian Lennon underwent surgery to treat skin cancer ... - AOL

    www.aol.com/julian-lennon-underwent-surgery...

    Julian Lennon is navigating a health scare this holiday season. Ahead of his trip to New York for a media tour, Lennon, 61, said he had a consultation with his dermatologist Dr. Tess, who ...