Column family in Cassandra is similar to RDBMS table. Column family is used to store data. Cassandra Create table Syntax Create table KeyspaceName.TableName ( ColumnName DataType, ColumnName DataType, ColumnName DataType . . . Primary key(ColumnName) ) with PropertyName=PropertyValue; Primary key: There Continue Reading..
A columnstore index is a type of data structure that’s used to store, manage and retrieve data that is stored in a columnar-style database. Columnstore indexes work well with read-only queries and large-scale analysis. One of their primary uses is queries Continue Reading..
A keyspace is an object that holds the column families, user defined types. In Cassandra, Keyspace is similar to RDBMS Database. Keyspace holds column families, indexes, user defined types, data center awareness, strategy used in keyspace, replication factor, etc. Command Continue Reading..
A chart is a visual representative of data in both columns and rows. Charts are usually used to analyse trends and patterns in data sets. Let’s say you have been recording the sales figures in Excel for the past three Continue Reading..
Cassandra is designed to handle big data. Cassandra’s main feature is to store data on multiple nodes with no single point of failure. The reason for this kind of Cassandra’s architecture was that the hardware failure can occur at any Continue Reading..
Cassandra is a distributed database management system designed for handling a high volume of structured data across commodity servers Cassandra handles the huge amount of data with its distributed architecture. Data is placed on different machines with more than one Continue Reading..
Vlookup (V stands for ‘Vertical’) is an in-built function in excel which allows establishing a relationship between different columns of excel. In other words, it allows you to find (look up) a value from one column of data and returns Continue Reading..
DevOps is a culture which promotes collaboration between Development and Operations Team to deploy code to production faster in an automated & repeatable way. The word ‘DevOps’ is a combination of two words ‘development’ and ‘operations.’ DevOps helps to increases Continue Reading..
Standardization of a project is not possible as the different project has different requirements and processes. However, the process of project management can be standardized by using some of the pre-defined project methodologies. There are several project management methodology that Continue Reading..
Apache Hadoop is an open source software framework used to develop data processing applications which are executed in a distributed computing environment. Applications built using HADOOP are run on large data sets distributed across clusters of commodity computers. Commodity computers Continue Reading..