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Michael Rys|Last Updated: 5/15/2018
4 Contributors

Outputting CSV Files

The Csv() outputter disallows the delimiter parameter and defaults the field delimiter to ',' (comma). All other parameters are the same. See Outputter Parameters (U-SQL) for supported parameters and their defaults values.


  • The examples can be executed in Visual Studio with the Azure Data Lake Tools plug-in.
  • The scripts can be executed locally. An Azure subscription and Azure Data Lake Analytics account is not needed when executed locally.

Basic Syntax
The examples below show the basic syntax for each parameter using the Csv() outputter. Compare the output against the dataset as well as against the other created data files.

@sampleData = 
        ( VALUES
        ((char?)'☺',      1,  "Noah☺",  100, (int?)10000, new DateTime(2012,05,31),  "cell:030-0074321,office:030-0076545"),
        ((char?)'数',     3,  "Liam数",  100, (int?)30000, new DateTime(2014,09,14),  "cell:(5) 555-3932"),
        ((char?)'\xFFFD', 4,  "\xFFFD", 100, (int?)35000, new DateTime(1999,02,27),  "cell:(171) 555-7788,office:(171) 555-6750, home:(425) 555-6238"),
        ((char?)'\n',     6,  "Emma",   200, (int?)8000,  new DateTime(2014,03,08),  (string)null),
        ((char?)',',      7,  "Jacob",  200, (int?)8000,  new DateTime(2014,09,02),  ""),
        ((char?)null,     14, "Jennie", 100, (int?)null,  new DateTime(2000,02,12),  "cell:(5) 555-3392,office:(5) 555-7293")
        ) AS T(character, EmpID, EmpName, DeptID, Salary, StartDate, PhoneNumbers);

OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv.csv" USING Outputters.Csv();
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_outputHeader.csv" USING Outputters.Csv(outputHeader: true);
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_charFormat.csv" USING Outputters.Csv(charFormat: "string");
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_dateTimeFormat.csv" USING Outputters.Csv(dateTimeFormat: "D");
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_encoding.csv" USING Outputters.Csv(encoding: Encoding.UTF32);
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_escapeCharacter.csv" USING Outputters.Csv(escapeCharacter: ':');
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_nullEscape.csv" USING Outputters.Csv(nullEscape: "null");
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_quoting.csv" USING Outputters.Csv(quoting: false);
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_rowDelimiter.csv" USING Outputters.Csv(rowDelimiter: "\u0003");
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_charFormat_nullEscape_escapeCharacter.csv" USING Outputters.Csv(charFormat: "string", nullEscape:"NULL", escapeCharacter:'#');
OUTPUT @sampleData TO "/Output/ReferenceGuide/BuiltIn/UDOs/Csv_charFormat_encoding.csv" USING Outputters.Csv(charFormat: "string", encoding:Encoding.Unicode);

See Also

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