Explain the difference between $var and $$var?

336

hello I am a tranee on Mainframe i want to know ans of tricky que like how would u see urself 5 yrs down the line

1920

Why do we need to rebuild indexes?

1

What is aggregatebykey spark?

101

How does xaml relate to biztalk/.net? : xaml

382

Explain the process to implement test pyramid in terms of http apis.

96

How do I run a trace in sql server?

301

What is the use of __ init __ py in python?

267

what are differential gain and common-mode gain of a differential amplifier?

365

Explain the contents that are a part of dclgen.

432

Difference between string, stringbuffer and stringbuilder?

364

How is reporting controlled in hadoop?

348

Why do you need orm tools like hibernate?

81

what is the basic construction diffrance between servo motor ans sqiralcage induction motor

1758

How do I use scenario manager in excel?

171