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the channel in the data communication model can be? option a.postal mail serv. b telephon lines c.radio signals d. all the above
2 7333Post New National Investment Commission Interview Questions
How does linq to sql work?
What is the full form of cmmi?
Do you need cals for windows server 2016 essentials?
how to start mysql server? : Sql dba
Why aggregation cannot be done in Mapper?
Is alexa a form of artificial intelligence?
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We have both consumption tax and With Holding Tax on each invoice, will there be any conflict involved?
how to counting numbers of 3 same sides triangles that can be inserted into an a perfect right triangle?
What is an arbitrary function in r?
What is difference between for loop and foreach?
Explain supported data types in python?
What is sql server replication? : sql server replication
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.
Can you explain regression testing and confirmation testing?
