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TACRAdvancedFieldType type
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TACRAdvancedFieldType is a set of values that database engine uses for the data types of fields in tables.
Unit
ACRTypes
type TACRAdvancedFieldType = (aftUnknown, aftChar, aftString, aftWideChar, aftWideString, aftShortint, aftSmallint, aftInteger, aftLargeint, aftByte, aftWord, aftCardinal, aftAutoInc, aftAutoIncShortint, aftAutoIncSmallint, aftAutoIncInteger, aftAutoIncLargeint, aftAutoIncByte, aftAutoIncWord, aftAutoIncCardinal, aftSingle, aftDouble, aftExtended, aftBoolean, aftCurrency, aftDate, aftTime, aftDateTime, aftTimeStamp, aftBytes, aftVarBytes, aftBlob, aftGraphic, aftMemo, aftFormattedMemo, aftWideMemo);
Description
TACRAdvancedFieldType type is the set of values for the DataType property field definition objects. TACRAdvancedFieldType values are used in field-related functions and methods like TACRAdvFieldDefs.Add. The following table describes each value:
Value
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Description
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Corresponding TFieldType
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aftUnknown
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Unknown or undetermined
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ftUnknown
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aftChar
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Fixed character field
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ftFixedChar
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aftString
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Character or variable length string field
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ftString
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aftWideChar
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Fixed wide character field
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ftWideString
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aftWideString
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Wide character or variable length wide string field
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ftWideString
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aftShortint
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8-bit integer field
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ftSmallint
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aftSmallint
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16-bit integer field
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ftSmallint
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aftInteger
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32-bit integer field
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ftInteger
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aftLargeint
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64-bit integer field
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ftLargeint
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aftByte
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Byte field
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ftWord
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aftWord
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16-bit unsigned integer field
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ftWord
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aftCardinal
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32-bit unsigned integer field
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ftLargeint
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aftAutoInc
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Auto-incrementing 32-bit integer counter field
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ftAutoinc
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aftAutoIncShortint
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Auto-incrementing 8-bit integer counter field
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ftAutoinc
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aftAutoIncSmallint
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Auto-incrementing 16-bit integer counter field
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ftAutoinc
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aftAutoIncInteger
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Auto-incrementing 32-bit integer counter field
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ftAutoinc
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aftAutoIncLargeint
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Auto-incrementing 64-bit integer counter field
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ftAutoinc
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aftAutoIncByte
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Auto-incrementing byte counter field
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ftAutoinc
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aftAutoIncWord
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Auto-incrementing 16-bit unsigned integer counter field
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ftAutoinc
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aftAutoIncCardinal
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Auto-incrementing 32-bit unsigned integer counter field
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ftAutoinc
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aftSingle
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Single floating-point numeric field
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ftFloat
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aftDouble
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Double floating-point numeric field
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ftFloat
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aftExtended
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Extended floating-point numeric field
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ftFloat
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aftBoolean
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Boolean field
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ftBoolean
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aftCurrency
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Money field
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ftCurrency
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aftDate
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Date field
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ftDate
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aftTime
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Time field
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ftTime
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aftDateTime
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Date and time field
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ftDateTime
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aftTimeStamp
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Date and time field accessed through dbExpress
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ftTimeStamp
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aftBytes
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Fixed number of bytes (binary storage)
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ftBytes
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aftVarBytes
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Variable number of bytes (binary storage)
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ftVarBytes
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aftBlob
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Binary Large OBject field
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ftBlob
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aftGraphic
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Bitmap field
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ftGraphic
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aftMemo
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Text memo field
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ftMemo
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aftFormattedMemo
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Formatted text memo field
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ftFmtMemo
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aftWideMemo
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Unicode text memo field
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ftMemo
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