pushing files via Netcat
Netcat is a utility in unix to investigate network connections. It has now been ported to windows and it allows us to query network connections on a windows platform with…
Netcat is a utility in unix to investigate network connections. It has now been ported to windows and it allows us to query network connections on a windows platform with…
Flume allows to directly tranfer messages into a file. It even allows such files to be stored on Hadoop. This opens a way to capture messages in a file that…
I encountered the term “serialise”. But what does it mean? I understood the term “serialise” when I read a comment that explained that data structures can be created inside, say,…
Another example shows a similar idea. In this example a stream is created. This stream consists of 3 objects that contain a name and a number. Once the stream is…
I got a better understanding when I used AVRO to write data via PHP and to read them via Java. It demonstrated to me how data can be written in…
This post provides info on how data may be added on a Big Data platform with help of Hive and Impala. We start with a dataset that is stored on…
Transpose a record in Oracle isn’t easy. I had a small table with several records and one value in a record. I wanted to transpose that table into one record…
The SQL Loader is a facility that allows you to load data files blazingly fast. It is able to do as data files are directly written to disk without any…
Oracle allows you to calculate a distance between two points. Such calculation is not trivial as one must take into account that distances are calculated over the globe and the…
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…