| FdoDataType_Boolean | Represents a Boolean value of true or false |
| FdoDataType_Byte | Represents unsigned 8-bit integers with values between 0 and 255 |
| FdoDataType_DateTime | Represents a date and time value |
| FdoDataType_Decimal | Represents values ranging from 1.0 x 10^-28 to approximately 7.9 x 10^28, with 28-29 significant digits |
| FdoDataType_Double | Represents a floating point value ranging from approximately 5.0 x 10^-324 to 1.7 x 10^308 with a precision of 15-16 digits |
| FdoDataType_Int16 | Represents signed 16-bit integers with values between -32768 and 32767 |
| FdoDataType_Int32 | Represents signed 32-bit integers with values between -2147483648 and 2147483647 |
| FdoDataType_Int64 | Represents signed 64-bit integers with values between -9223372036854775808 and 9223372036854775807 |
| FdoDataType_Single | Represents floating point values ranging from approximately 1.5 x 10^-45 to 3.4 x 10^38, with a precision of 7 digits |
| FdoDataType_String | Represents a Unicode character string |
| FdoDataType_BLOB | Represents a binary large object stored as a collection of bytes |
| FdoDataType_CLOB | Represents a character large object stored as a collection of characters |
