PowerExchange for Microsoft Azure Blob Storage User Guide

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Flat File Schema Properties

You can configure format properties for a flat file that is delimited.

The following table describes the file format and column format properties that you configure for a flat file:

Property	Description
Maximum row to preview	Number of rows to show in data preview. Default is 0.
Delimiters	Character used to separate columns of data. Default is comma. If you enter a delimiter that is the same as the escape character or the text qualifier, you might receive unexpected results. You cannot specify a multibyte character as a delimiter.
Text Qualifier	Quote character that defines the boundaries of text strings. Default is double quotes. If you select a quote character, the Developer tool ignores delimiters within pairs of quotes.
Qualifier Mode	Qualifier behavior for the target object. You can select one of the following options: Minimal . Applies the qualifier to data that contains either a delimiter value or a special character. Otherwise, the Data Integration Service does not apply the qualifier. All . Applies qualifier to all data. Default is minimal.
Row Delimiter	Character used to separate the rows of data. The default value is \012 LF (\n) .
Target Header	Indicates whether you want to write data with or without a header.
Escape Character	Character immediately preceding a column delimiter character embedded in an unquoted string, or immediately preceding the quote character in a quoted string. When you specify an escape character, the Data Integration Service reads the delimiter character as a regular character. Default is backslash (\).
Retain Escape Character in Data	Not applicable.

If you update the flat file format properties during the data object import and want to see the updated format properties in Data Preview, you must parse the flat file again by selecting the

Schema

property.

Parameterize Column Format Properties

You can parameterize the column format properties for flat files in a parameter file. The following table describes property strings that you can use in a parameter file:

Property	Value
maxRowsToPreview	A positive integer value. Default is 0.
delimiter	Specify the octal code for the character. Preface the octal code with a backslash (\). Specify the following values for the given delimiters: \011 TAB for Tab ; for semicolon , for comma \040 SP for space Default is comma. You cannot specify a multibyte character as a delimiter
textQualifier	Specify the following string values: SINGLE_QUOTES for ' DOUBLE_QUOTES for " NO_QUOTES Default is double quotes.
rowDelimiter	Default value, \012 LF (\n) .
escapeCharacter	A string value. Default is \ .

A Sample JSON Parameter File

{ "maxRowsToPreview": 10, "delimiter": ";", "textQualifier": "SINGLE_QUOTES", "escapeCharacter" : "-" }

Rules and guidelines for writing to a flat file target

Consider the following rules when you run a mapping to write data to a flat file in the native environment or on the Spark engine:

For a mapping that runs on the Spark engine, the first row of the header in the flat file contains an additional

symbol. For example, the header

ID_Char

appears as

#ID_Char

For a mapping that runs in the native environment, the header in the flat file does not contain an additional

symbol. For example, the header

ID_Char

appears as

ID_Char

For a mapping that runs on the Spark engine, the double quotes text qualifier is honored. For example, the column name

abcd

with the double quotes text qualifier appears as

"abcd"

For a mapping that runs in the native environment, the double quotes text qualifier is not honored. For example, the column name

abcd

with the double quotes text qualifier appears as

abcd

Schema Properties

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Table of Contents

PowerExchange for Microsoft Azure Blob Storage User Guide

PowerExchange for Microsoft Azure Blob Storage User Guide

Flat File Schema Properties

Flat File Schema Properties

Parameterize Column Format Properties

A Sample JSON Parameter File

Rules and guidelines for writing to a flat file target