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HCEI Call Centre AllOther Interview Questions (1)
What are the common ayurveda medicines which can be used without consulting the doctors?
how find a system dump?
Explain about cookie less session state? : .NET Architecture
Do people still use mvc?
Explain the role of Edge AI in real-time decision-making.
Describe how you would build a chatbot.
can you provide me full detail about instrumentation in ONGC??
Why can't we do it thru some other client?
what is maximum concurrency in jdbc adapter?
Is j2ee a language or framework?
What is injectable in angular2?
How do you handle null values?
What are the 3 pillars of oop?
Explain the difference between abstract class and interface in c++?
SET is the ANSI standard for variable assignment, SELECT is not. SET can only assign one variable at a time, SELECT can make multiple assignments at once. If assigning from a query, SET can only assign a scalar value. If the query returns multiple values/rows then SET will raise an error. SELECT will assign one of the values to the variable and hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one) When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from it's previous value) As far as speed differences - there are no direct differences between SET and SELECT. However SELECT's ability to make multiple assignments in one shot does give it a slight speed advantage over SET.
