Explain first() operation in Spark?
When will you define a method as static?
Can I stop a chkdsk in progress?
How you connect ECC to EP?
What are foreign keys in database?
What is the purpose of extern storage specifier?
Can you drop all the columns of a table ?
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Why delegates are safe in c#?
Given a table which contains some rows with duplicate keys, how would you remove the duplicates?
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What is the servlet?
How can you handle concurrency in LINQ to SQL?
How to create static methods in Kotlin?
How do I cut one cell in excel?