What is a synonym?
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What Skills Does a Data Engineer Need?
What’s the difference between a view and a materialized view?
Calculate the address of a random element present in a 2D array, given base address as BA.
What is the difference between deep copy and shallow copy?
Describe the fundamental idea underlying the Apache Hadoop Framework.
What is a surrogate key?
What is the difference between SQL, Oracle, MySQL, and SQL Server?
If a table contains duplicate rows, will a query display duplicate values by default? How can you eliminate duplicate rows from a query result?
How would you describe yourself?
What is a unique constraint? How is it different from a primary key?
List the standard port numbers on which Hadoop’s task tracker, NameNode, and job tracker operate.
Mention some of Hadoop’s key attributes.
What is a primary key?
What is the difference between SQL and PL/SQL?
Which two messages does NameNode get from DataNode?
As a data engineer, how would you go about creating a new analytical product?
What does a skewed table mean in Hive?
How are the elements of a 2D array are stored in the memory?
Explain What are FIFO and LIFO?