Hadoop DP Notes
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What are the primitive data types in Hadoop ?
Below are the list of primitive writable data types available in Hadoop.
BooleanWritable
ByteWritable
IntWritable
VIntWritable
FloatWritable
LongWritable
VLongWritable
DoubleWritable
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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...