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Is SQL unknown identical to NULL?

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#sql #null #three-valued-logic
910
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OData request that returns items not matching the filter

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#odata #northwind #three-valued-logic
78
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SQLthree valued logic - do de Morgan's laws apply?

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#sql #logic #three-valued-logic
897
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Numeric comparisons with NA values causing bad subsets in R

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#r #comparison-operators #three-valued-logic
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Example of three valued logic in SQL Server

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#sql #sql-server #t-sql #three-valued-logic
315
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Logical operations in modal three-valued logic (XOR, IMP EQV)

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#logical-operators #three-valued-logic #modal-logic
97
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SQL that check for Duplicates with NULL doesn't not return

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#c# #sql #null #three-valued-logic
1.4k
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How to apply 3-valued-logic to SQL queries?

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#sql #three-valued-logic
1.7k
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Options for eliminating NULLable columns from a DB model (in order to avoid SQL's three-valued logic)?

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#sql #null #relational-database #three-valued-logic
93
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Implementation of SQL's three-valued logic

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#sql #logic #three-valued-logic
385
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NOT IN does not produce same results as NOT EXISTS

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#sql #sql-server #t-sql #three-valued-logic
1.3k
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compare three variables and get the variable with min/max value back (not value)

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#java #compare #three-valued-logic
683
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Can anyone tell me why my case statement return null(good)

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#sql #sql-server #three-valued-logic
17.9k
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Spark Scala : Check if string isn't null or empty

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#scala #apache-spark #three-valued-logic
461
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A three-valued boolean logic with Z3 solver

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#z3 #smt #three-valued-logic
422
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All possible combinations of Three-valued logic values

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#haskell #three-valued-logic
218
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SQL how to store meaningful null values?

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#sql #null #three-valued-logic
391
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How should I test a field against an SQL variable which can be null?

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#sql #sql-server #sql-server-2008 #three-valued-logic
1k
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Why is `NOT(NULL=NULL)` false?

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#sql #sql-server #null #logical-operators #three-valued-logic
21.9k
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SQL 'Or' operator. How does it work in the following scenario?

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#sql #sql-server #null #three-valued-logic

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