Why do we need database?

886

While selling fertilisers can we charge VAT on excise duty.

1963

Explain first() operation in Apache Spark?

289

Explain small file problem in hadoop

406

Explain the three services model (three-tier application). Presentation (ui), business (logic and underlying code) and data (from storage or other sources).

881

What is the advantage of runtime polymorphism?

911

A get next item action should almost invariably be followed by which stage?

363

What are the most useful excel functions?

621

What does the future hold for data scientists?

324

What is the most common trace flags used with sql server?

999

What is Background-symmetry algorithm?

1834

Can a try block have nested try blocks?

991

define drill through?

5

How many spaces is a tab?

791

What is a db2 table?

981