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WHY COMPARISIONS '... = NULL' and '... <> NULL' DOES NOT WORK ??? ! ! ! [CORE3800] #4143

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firebird-automations opened this issue Mar 26, 2012 · 3 comments
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WHY COMPARISIONS '... = NULL' and '... <> NULL' DOES NOT WORK ??? ! ! ! [CORE3800] #4143

firebird-automations opened this issue Mar 26, 2012 · 3 comments
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affect-version: 2.5.1 component: engine priority: major resolution: wontfix type: improvement

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Submitted by: Gregor Markowski (gtm2)

there shoud be functionality that allow of using
'= NULL' as equivalent to ' IS NULL'
and
' <> NULL' as equivalent to ' IS NOT NULL'
in all SQL statements (queries and comparisions in stored procedures).
regards
GM
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Commented by: @hvlad

RTFM, IS [NOT] DISTINCT FROM

Firebird Null Guide :
http://www.firebirdsql.org/file/documentation/reference_manuals/user_manuals/html/nullguide.html

Firebird 2.5 Language Reference Update:
http://www.firebirdsql.org/file/documentation/reference_manuals/reference_material/html/langrefupd25.html

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Modified by: @asfernandes

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Won't Fix [ 2 ]

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Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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affect-version: 2.5.1 component: engine priority: major resolution: wontfix type: improvement
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