Fields

You can specify what fields to read from your S3 file through the fields table.

• Click Get Fields to have the step populate the table with fields derived from the source file based on the current specified settings (such as Delimiter or Enclosure). All fields identified by this step will be added to the table.

• Click Preview to view the data coming from the source file.

The table contains the following columns:

Column	Description
Name	Specify the name of the field.
Type	Select the field’s data type from the dropdown list or enter it manually.
Format	Select the format mask (number type) from the dropdown list or enter it manually. See Common Formats for information on common valid date and numeric formats you can use in this step.
Length	Specify the length of the field, according to the following field types:- Number Total number of significant figures in a number String Total length of the string Date Length of printed output of the string (for example, four is a length for a year)
Precision	Specify the number of floating point digits for number-type fields.
Currency	Specify the symbol used to represent currencies. For example: $ or €
Decimal	Specify the symbol used to represent a decimal point, either a period "." or a comma ",".For example: 5,000.00 or 5.000,00
Group	Specify the method used to separate units of thousands in number of four digits or larger, either a period “.” Or a comma “,”. For example: 5,000.00 or 5.000,00
Trim type	Select the trimming method (none, left, right, both) to apply to a string, which truncates the field before processing. Trimming only works when no field length is specified.

See [Understanding PDI data types and field metadata](../../../../Data%20Integration%20Perspective/Data%20Integration%20perspective%20in%20the%20PDI%20client/Advanced%20topics%20(PDI%20perspective)/Understanding%20PDI%20data%20types%20and%20field%20metadata.md) to maximize the efficiency of your transformation and job results.