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Function empty() and null value
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Forum:
Visual FoxPro
Category:
Other
Title:
Function empty() and null value
Environment versions
Visual FoxPro:
VFP 9 SP1
Miscellaneous
Thread ID:
01516146
Message ID:
01516146
Views:
113
Hi,

When using SQL Server and allowing NULL in empty dates I came across a small issue where EMPTY( date_field) returns .F. when the entry in date_field is NULL. And this of course breaks a lot of code where the program relied on the date field being empty. I am thinking of creating a simple function like this:
Function MyEmpty
lparameter tDate
if empty( tDate) or isnull( tDate)
   return .T.
else
  return .F.
endif 
And replace everywhere in the program where I use
if EMPTY( date_field ) 
with
if MyEmpty( date_field )
Can anybody see a potential problem with the above approach? TIA.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
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