Hadoop DP Notes
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You wish to print a file ‘draft’ with 60 lines to a page. What command would you use?
- The command that I would use is: pr -l60 draft
- The default page length when using pr is 66 lines.
- The -l option specifies a different length.
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What are the main components of Mapreduce Job ?
Main driver class which provides job configuration parameters. Mapper class which must extend org.apache.hadoop.mapredu...
TO_CHAR
This will be used to extract various date formats. The available date formats as follows. Syntax: to_char ( date , fo...