[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] |
Field data type description
Source position: db.pas line 106
type TFieldType = ( |
||
ftUnknown, |
|
Unknown data type |
ftString, |
|
String data value (ansistring) |
ftSmallint, |
|
Small integer value(1 byte, signed) |
ftInteger, |
|
Regular integer value (4 bytes, signed) |
ftWord, |
|
Word-sized value(2 bytes, unsigned) |
ftBoolean, |
|
Boolean value |
ftFloat, |
|
Floating point value (double) |
ftCurrency, |
|
Currency value (4 decimal points) |
ftBCD, |
|
Binary Coded Decimal value (DECIMAL and NUMERIC SQL types) |
ftDate, |
|
Date value |
ftTime, |
|
Time value |
ftDateTime, |
|
Date/Time (timestamp) value |
ftBytes, |
|
Array of bytes value, fixed size (unytped) |
ftVarBytes, |
|
Array of bytes value, variable size (untyped) |
ftAutoInc, |
|
Auto-increment integer value (4 bytes) |
ftBlob, |
|
Binary data value (no type, no size) |
ftMemo, |
|
Binary text data (no size) |
ftGraphic, |
|
Graphical data value (no size) |
ftFmtMemo, |
|
Formatted memo ata value (no size) |
ftParadoxOle, |
|
Paradox OLE field data (no size) |
ftDBaseOle, |
|
Paradox OLE field data |
ftTypedBinary, |
|
Binary typed data (no size) |
ftCursor, |
|
Cursor data value (no size) |
ftFixedChar, |
|
Fixed character array (string) |
ftWideString, |
|
Widestring (2 bytes per character) |
ftLargeint, |
|
Large integer value (8-byte) |
ftADT, |
|
ADT value |
ftArray, |
|
Array data |
ftReference, |
|
Reference data |
ftDataSet, |
|
Dataset data (blob) |
ftOraBlob, |
|
Oracle BLOB data |
ftOraClob, |
|
Oracle CLOB data |
ftVariant, |
|
Variant data value |
ftInterface, |
|
interface data value |
ftIDispatch, |
|
Dispatch data value |
ftGuid, |
|
GUID data value |
ftTimeStamp, |
|
Timestamp data value |
ftFMTBcd, |
|
Formatted BCD (Binary Coded Decimal) value. |
ftFixedWideChar, |
|
Fixed wide character date (2 bytes per character) |
ftWideMemo |
|
Widestring memo data |
); |
TFieldType indicates the type of a TField underlying data, in the DataType property.