What is DDL statement in hive ?
Answer : The outline of the database schema typically change by SQL statements they are creating, deleting
What is the default value in hive ?
Answer : It does not contains default values, the normal way to handle null values by using the combine function
What is system registry hive ?
Answer : The logical group of keys, subkeys, and values in the registry that has a set of supporting files containing...
What is serde in hive ?
Answer : Apache Hive uses Serde to read and write data from tables.
What is hive metastore ?
Answer : It stores the metadata for Hive tables,it separates in relational database
What is hive server ?
Answer : HiveServer - It allows a remote client to submit requests to Hive, using a programming languages, and results.
What is Data Hive ?
Answer : Data Hive is a data warehouse software project built on top of Apache Hadoop for providing query, and analysis.
What is hive ?
Answer : Hive is a component of Hortonworks Data Platform(HDP).
What is the difference between primary, partition and clustering key in Cassandra ?
Answer : In Cassandra, a table contain a number of rows.
What is the difference between Cassandra and Hadoop ?
Answer : All nodes are same in Peer-to-Peer Distributed architecture. Master/Slave. Name Node act as Master and data node...
What is the virtual node in Cassandra ?
Answer : Prior to Cassandra 1.2, every node was allocate to a particular token range.
What is the use of Cassandra database ?
Answer : Apache Cassandra is a high-performance provides database to manage large number of data among many commodity...
What is the replica placement strategy in Cassandra ?
Answer : Once you’ve absorbed that the strategy should fit the kind of environment you are placing your cluster in...
What is the relationship between Apache Hadoop, HBase, Hive and Cassandra ?
Answer : It is a Big Data framework which uses Hadoop Distributed File System to Store the data and MapReduce framework to...
What is the most widely used API to write data to Cassandra ?
Answer : Java makes the write procedure locked into the Java program.
What is the internal architecture of the Cassandra database ?
Answer : Cassandra is build to manage big data workloads among multiple nodes with no single point of failure
What is the Cassandra coefficient ?
Answer : The four components of the Cassandra Coefficient are...
What is the best method for storing lists of large objects in Cassandra ?
Answer : All header information variables become static attached to your primary key...
What is secondary index in Cassandra ?
Answer : A primary index is global, although a secondary index is local.
What is cluster, node and key space in cassandra ?
Answer : Cluster is a collection of multiple data centers.