Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
A foundation of CODD's relational maybe-operations - MaRDI portal

A foundation of CODD's relational maybe-operations (Q3323314)

From MaRDI portal
scientific article
Language Label Description Also known as
English
A foundation of CODD's relational maybe-operations
scientific article

    Statements

    A foundation of CODD's relational maybe-operations (English)
    0 references
    0 references
    1983
    0 references
    relational database
    0 references
    null values
    0 references
    maybe-tuples
    0 references
    predicate logic
    0 references
    stored tuples
    0 references
    possible models
    0 references
    information content
    0 references
    relational algebra
    0 references
    semantics of relational query languages
    0 references
    update operations
    0 references
    adequacy
    0 references
    restrictedness
    0 references

    Identifiers

    0 references
    0 references
    0 references
    0 references
    0 references
    0 references