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

# TFieldDef.Size

Size of the buffer needed to store the data of the field

## Declaration

Source position: db.pas line 199

`published property TFieldDef.Size: Integer read FSize write SetSize;`

## Description

Size indicates the size of the buffer needed to hold data for the field. For types with a fixed size (such as integer, word or data/time) the size can be zero: the buffer mechaism reserves automatically enough heap memory. For types which can have various sizes (blobs, string types, BCD types), the Size property tells the buffer mechanism how many bytes are needed to hold the data for the field.

## See also

TFieldDef.Precision |  | Precision used in BCD (Binary Coded Decimal) fields
TFieldDef.DataType |  | Data type for the field

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