Hadoop DP Notes
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What do you understand by SchemaRDD?
An RDD that consists of row objects (wrappers around basic string or integer arrays) with schema information about the type of data in each column.
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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...