Constant
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Description
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adArray
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OR'd together with another type to indicate that the data is a safe-array of that type (DBTYPE_ARRAY).
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adBigInt
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An 8-byte signed integer (DBTYPE_I8).
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adBinary
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A binary value (DBTYPE_BYTES).
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adBoolean
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A Boolean value (DBTYPE_BOOL).
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adByRef
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Or'd together with another type to indicate that the data is a pointer to data of the other type (DBTYPE_BYREF).
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adBSTR
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A null-terminated character string (Unicode) (DBTYPE_BSTR).
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adChar
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A String value (DBTYPE_STR).
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adCurrency
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A currency value (DBTYPE_CY). Currency is a fixed-point number with 4 digits to the right of the decimal point. It is stored in an 8-byte signed integer scaled by 10,000.
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adDate
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A date value (DBTYPE_DATE). A date is stored as a Double, the whole part of which is the number of days since December 30, 1899, and the fractional part of which is the fraction of a day.
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adDBDate
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A date value (yyyymmdd) (DBTYPE_DBDATE).
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adDBTime
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A time value (hhmmss) (DBTYPE_DBTIME).
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adDBTimeStamp
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A date-time stamp (yyyymmddhhmmss plus a fraction in billionths) (DBTYPE_DBTIMESTAMP).
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adDecimal
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An exact numeric value with a fixed precision and scale (DBTYPE_DECIMAL).
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adDouble
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A double-precision floating point value (DBTYPE_R8).
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adEmpty
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No value was specified (DBTYPE_EMPTY).
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adError
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A 32-bit error code (DBTYPE_ERROR).
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adGUID
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A globally unique identifier (GUID) (DBTYPE_GUID).
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adIDispatch
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A pointer to an IDispatch interface on an OLE object (DBTYPE_IDISPATCH).
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adInteger
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A 4-byte signed integer (DBTYPE_I4).
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adIUnknown
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A pointer to an IUnknown interface on an OLE object (DBTYPE_IUNKNOWN).
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adLongVarBinary
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A long binary value.
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adLongVarChar
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A long String value.
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adLongVarWChar
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A long null-terminated string value.
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adNumeric
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An exact numeric value with a fixed precision and scale (DBTYPE_NUMERIC).
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adSingle
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A single-precision floating point value (DBTYPE_R4).
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adSmallInt
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A 2-byte signed integer (DBTYPE_I2).
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adTinyInt
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A 1-byte signed integer (DBTYPE_I1).
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adUnsignedBigInt
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An 8-byte unsigned integer (DBTYPE_UI8).
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adUnsignedInt
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A 4-byte unsigned integer (DBTYPE_UI4).
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adUnsignedSmallInt
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A 2-byte unsigned integer (DBTYPE_UI2).
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adUnsignedTinyInt
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A 1-byte unsigned integer (DBTYPE_UI1).
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adUserDefined
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A user-defined variable (DBTYPE_UDT).
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adVarBinary
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A binary value.
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adVarChar
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A String value.
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adVariant
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An Automation Variant (DBTYPE_VARIANT).
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adVector
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OR'd together with another type to indicate that the data is a DBVECTOR structure, as defined by OLE DB, that contains a count of elements and a pointer to data of the other type (DBTYPE_VECTOR).
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adVarWChar
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A null-terminated Unicode character string.
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adWChar
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A null-terminated Unicode character string (DBTYPE_WSTR).
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