[Overview][Constants][Types][Classes][Procedures and functions][Index] Reference for unit 'db' (#fcl)

TFieldType

Field data type description

Declaration

Source position: db.pas line 110

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

);

Description

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

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