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Applications developer Interview Questions

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what is the difference between union and union all

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UNION is used to link like data sets and display unique values. UNION ALL is used to link like data sets and display all values. It is part of the T-SQL language and if you get them wrong, you can end up with incorrect results to your queries.

Yes, you are generating two different data sets. One is unique, the other will have duplicates because of the all. Depending on the report needed. The big one (all) could have all combintions of your data. How you use these sql statement is dependant of what outcome you want..

What would the count for the list of it. public class Test { string Data; int Id; public Test(int id, string data) { Data = data; Id = id; } } static void Main(string[] args) { List list = new List(); list.Add(new Test(10, "test")); var d = new Test(10, "test"); if (!list.Contains(d)) list.Add(d); Console.WriteLine("Count of the list is : " + list.Count); Console.ReadLine(); } } What to do to make count 1?

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What is inheritance?

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How would you design a calculator for a blind person

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Ternary operator replacement, personal questions or how an application can anticipate user behavior?

1 Answer

What is the difference between an inline element and block-inline element?

1 Answer

What relevant skills and experience do you have and what benefits does it have in regards to our specific projects

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What data structure would I use to house a key/value pair.

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What kind of experience do you have with designing tests and communicating the results to members of a team?

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Describe to me your ideal work-life balance.

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