Unit 'DB' Package
[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] [#fcl]

TFieldType

Field data type description.

Declaration

Source position: db.pas line 113

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 data 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.

  ftOraTimeStamp,

  

Oracle time stamp field type.

  ftOraInterval,

  

Oracle interval field type.

  ftLongWord,

  

Longword (cardinal) field type.

  ftShortint,

  

Shortint field type.

  ftByte,

  

Byte field type.

  ftExtended,

  

Extended field type.

  ftSingle

);

Description

TFieldType indicates the type of a TField underlying data, in the DataType property.


Documentation generated on: Oct 27 2024