Slash Star Comment (U-SQL)
Indicates user-provided text. The text between
*/ is not evaluated by the query processor.
Slash_Star_Comment := '/*' text_of_comment '*/'.
A "comment" is a sequence of characters beginning with a forward slash/asterisk combination (
/*) that is treated as a single white-space character by the compiler and is otherwise ignored. A comment can include any combination of characters from the representable character set, including newline characters, but excluding the "end comment" delimiter (
*/). Comments can occupy more than one line but cannot be nested.
- The example can be executed in Visual Studio with the Azure Data Lake Tools plug-in.
- The script can be executed locally. An Azure subscription and Azure Data Lake Analytics account is not needed when executed locally.
The following example uses the
/* */ commenting characters.
/* This is a comment. Another comment on a separate line. */ @someBooks = SELECT * FROM ( VALUES ("The Book Thief", "Markus Zusak", "2005"), ("The Girl with the Dragon Tattoo", "Stieg Larsson", "2005"), ("The Silver Linings Playbook", "Matthew Quick", "2008"), ("Sarah's Key", "Tatiana de Rosnay", "2006") ) AS T(Books, Author, [Publication Year]); @result = SELECT * FROM @someBooks /* Comments can appear on the same line as a code */ WHERE [Publication Year] == "2006"; OUTPUT @result TO "/Output/ReferenceGuide/LanguageElements/Comments/exampleB.txt" USING Outputters.Csv();