What is the error message that you would get if you try to assign “Null” to an integer variable ? Answer : error message: cannot convert null to int… View Answer
How to connect to the Database from QTP ? Answer : Create an ADODB connection object which is required step for connecting to database as below…. View Answer
What is DITA ? Answer : Darwin Information Typing Architecture (DITA) is the most ideal approach… View Answer
What are the differences between Impala and Apache Drill ? Answer : Analytic DBMS for Hadoop Schema-free SQL Query Engine for Hadoop… View Answer
What is the difference between Impala and Apache Hive ? Answer : Impala does runtime code generations for “big loops ” using llvm… View Answer
What is the difference between Apache Hadoop and Cloudera in big data ? Answer : Apache Hadoop is the Hadoop distribution from Apache group… View Answer
What is the architectural design and features of Cloudera Impala ? Answer : The impala server consist of distributed and massively parallel processing info engine… View Answer
What is Cloudera’s technology stack ? Answer : Here are some products that make up Cloudera’s tech stack:… View Answer
What is cloudera impala ? Answer : Impala was the first to bring SQL querying to the public in April 2013… View Answer
Lazy writer in Memory ? Answer : Lazy write is an effect caused by the use of a write-back cache… View Answer
What is the difference between the SubQuery and Corelated SubQuery ? Answer : The inner query is executed only once… View Answer
What is the Difference between join and union ? Answer : The union operator combines the results of two or more queries into a single result set… View Answer
What is the difference between a HAVING CLAUSE and a WHERE CLAUSE ? Answer : The HAVING clause sets conditions on the GROUP BY… View Answer
Difference between Clustered and Non-clustered index ? Answer : Cluster index: Clustered index will be created… View Answer
What is an Index ? Answer : Index is a database object which improves the efficiency of the query… View Answer
What is GUI Testing ? Answer : It is the process of ensure to proper functionality of the graphical user interface… View Answer