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PreVator Interview Questions
Questions Answers Views Company eMail

What is difference between TRUNCATE & DELETE?

 16 39628

What is the difference between IN subselects and EXISTS subselect?

 1 9881

What are the return values of functions SQLCODE and SQLERRM ?

 2 9993

what is difference between "Primary key" and "Unique key"?

 4 7755

Differentiate between %type and %rowtype attribute in Oracle PL/AQL programming ?

 7 17345

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Which mvc framework is best?

210

Explain the flatMap operation on Apache Spark RDD?

183

What is gelatinization?

1172

Is sql server difficult to learn?

518

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1643

What type of grinding is used for harder materials?

562

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48

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89

Is no directive with exportas set to ngform?

397