Transpose in Oracle
Transposing data means changing data from a row into a column. Starting from version 11, this is possible in Oracle as well. It is possible to translate some values that…
Transposing data means changing data from a row into a column. Starting from version 11, this is possible in Oracle as well. It is possible to translate some values that…
Reading and writing from and to files is not easy in Java. This can already be seen if one simply googles on “Java Filereader problem”. This generated 477000 hits. Apparently,…
Another example on how mapper and reducers are used in a Hadoop context is given below. This programme is created as three classes. One class is an overall class that…
In Big Data, the concept of mapping and reducing plays a huge role. The idea is that a a massive dataset is split over several servers. On each server, a…