Posts by VitorKB • 126 points

• 5

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  A: How to identify classes in an object-oriented system?

  Use cases are used to map the business, facilitate the analysis of the business rules that your system will have and start to map them into classes, activities, interfaces according to class…

  oop software-engineering

  answered 11 years, 5 months ago VitorKB 126

• 6

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  A: Make an INNER JOIN using IF

  One of the ways to solve this case is to use a View/Subselect: SELECT C.SchoolID, C.ComboID, P.Active, P.Name, P.ProductID FROM sales.Combo AS C INNER JOIN commons.Stock AS S ON C.SchoolID =…

  sql select if

  answered 11 years, 6 months ago VitorKB 126