ADO constants (DataTypeEnum) Source: msdn.microsoft.com/en-us/library/ms675318(v=vs.85).aspx
AdBoolean = 11 AdBSTR = 8 AdChapter = 136 AdChar = 129 AdCurrency = 6 AdDate = 7
AdDBTime = 134
AdDecimal = 14 AdDouble = 5 AdEmpty = 0 AdError = 10 AdFileTime = 64 AdGUID = 72 AdIDispatch = 9 AdInteger = 3 AdIUnknown = 13
AdLongVarChar = 201 AdLongVarWChar = 203
AdPropVariant = 138 AdSingle = 4 AdSmallInt = 2 AdTinyInt = 16 AdUnsignedBigInt = 21 AdUnsignedInt = 19 AdUnsignedSmallInt = 18 AdUnsignedTinyInt = 17 AdUserDefined = 132
AdVarChar = 200 AdVariant = 12