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FdoISQLDataReader
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GetBoolean
GetByte
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GetLOB
GetLOBStreamReader
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virtual FDO_API bool FdoISQLDataReader::IsNull
(
FdoString
*
columnName
)
[pure virtual]
Returns true if the value of the specified column is null.
Parameters:
columnName
Input the column name.
Returns:
Returns true if the value is null.