Field Properties :
The nature of the field is another feature of the display tables ms access in 'Design View'. Its function is to
add characteristics to the table, to control the saiz of the field and to change the data type which is
Tex,Number,Currecy, Date/Time and many others.
Sifat Medan (field
properties)
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Keterangan
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Format
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Customize the way
that the field appears by default when it is displayed or printed.
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Caption
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Set the text
displayed by default in labels for forms, reports, and queries.
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field size
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Set the maximum size
for data stored as a Text, Number, or AutoNumber data type.
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Decimal places
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Specify the number
of decimal places to use when displaying numbers.
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Input mask
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Display editing
characters to guide data entry.
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Default value
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Automatically assign
the specified value to a field when a new record is added.
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validation rule
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Supply an expression
that must be true to add or change the value in this field.
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validation text
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Enter text that
appears when a value entered in this field violates the expression in the
Validation Rule box.
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text align
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Specify the default
alignment of text within a control.
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smart tags
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Attach a smart tag
to the field.
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Required
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Require that this
field must contain a value in every record.
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Indexed
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Speed up read access
to data in this field by creating and using an index.
NOTE The Memo and Hyperlink fields support
indexes on only the first 255 characters of the field.
IMPORTANT
An index on a field causes
append, delete, and update operations to take longer, because the index must
be updated to reflect any changes.
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