Conversions Supported from Data Type NULL
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I1
DBDATE
I2
DBTIME
I4
DBTIMESTAMP
I8
BOOL
UI1
BSTR
UI2
BYTES
UI4
Empty
UI8
ERROR
R4
GUID
R8
IDISPATCH
CY
IUNKNOWN
DECIMAL
STR
NUMERIC
VARIANT
X
DATE
WSTR