In SQL queries, aliases are playing very important roles i.e you can change or give new column name in results or you can give a new name for calculated column fields like sum of xyz. Like that you can use it tables or for queries. Lets see in...
Big Data EcoSystem
Big Data ecosystem has various components such as - Services, Storage, Data centers, Databases, Infra-structure & Network, Virtual Machines, Integration, Business Intelligence and analytics. These major components are managed by top MNCs. You can...
What is the history of HBase (Hadoop Database) ?
Google published a paper known as BigTable in 2006 and end of the year they Started development of Hbase or Hadoop Database. In 2008 HBase considered as Hadoop sub-project and after that it becomes Apache Top-Level Project in 201...