Results 71 to 80 of about 36,330 (90)

Ensemble stacked model for enhanced identification of sentiments from IMDB reviews. [PDF]

open access: yesSci Rep
Azim K   +6 more
europepmc   +1 more source

Virtual urgent care in an integrated value based healthcare system. [PDF]

open access: yesNPJ Digit Med
Nguyen K   +11 more
europepmc   +1 more source

Causal effect of life-course adiposity on the risk of respiratory diseases: a Mendelian randomization study. [PDF]

open access: yesNutr Metab (Lond)
Chen XX   +11 more
europepmc   +1 more source

Does darkness increase the risk of certain types of crime? A registered report article. [PDF]

open access: yesPLoS One
Uttley J   +5 more
europepmc   +1 more source

Null values in SQL

open access: closedACM SIGMOD Record, 2008
In various writings over the past 20 years, such as [3], Date has pointed out that SQL produces incorrect answers to some queries where a null value is included in a table. In a recent article in the ACM SIGMOD Record, [8], Rubinson states that "Date misinterprets the meaning of his example query" and "SQL returns the correct answer to the query posed".
John Grant
openalex   +3 more sources

Nulls, three-valued logic, and ambiguity in SQL

open access: closedACM SIGMOD Record, 2007
Date's popular critique of SQL's three-valued logic [4, 3] purports to demonstrate that SQL queries can produce erroneous results when nulls are present in the database. I argue that this critique is flawed in that Date misinterprets the meaning of his example query.
Claude Rubinson
openalex   +3 more sources

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