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2. What are the pros/cons of using a synonym vs. a view?

   stackoverflow.com/questions/869073

   They are different things. A synonym is an alias for the object directly, a view is a construct over one or more tables. Some reasons to use a view: May need to filter, join or otherwise frig with the structure and semantics of the result set. May need to provide legacy support for an underlying structure that has changed but has dependencies ...

3. Why and where to use INDEXes - pros and cons - Stack Overflow

   stackoverflow.com/questions/29842622

   0. There can be a handful of cons for using Indexes where they are not required. Adding indexes in table lead to slower performance on every Insert or Update operation. It leads to more storage and are also a maintenance overhead as Indexes become become fragmented or outdated and need to be organized.

4. Pros and Cons of LINQ (Language-Integrated Query)

   stackoverflow.com/questions/271384

   Pros: Declarative approach makes queries easier to understand and more compact. Extensibility and expression trees allow mostly consistent querying of multiple sources. Even in-process queries can be implemented in ways other than LINQ to Objects - e.g. Parallel LINQ and my own Push LINQ framework. Very flexible.

5. What is the difference between concurrency and parallelism?

   stackoverflow.com/questions/1050222

   asked Jun 26, 2009 at 17:18. StackUnderflow. 25.2k 15 56 77. 408. short answer: Concurrency is two lines of customers ordering from a single cashier (lines take turns ordering); Parallelism is two lines of customers ordering from two cashiers (each line gets its own cashier). – chharvey. Jan 21, 2019 at 3:19. 16.

6. What are the advantages and disadvantages of recursion?

   stackoverflow.com/questions/5250733

   Pros: It is the unique way of implementing a variable number of nested loops (and the only elegant way of implementing a big constant number of nested loops). Cons: Recursive methods will often throw a StackOverflowException when processing big sets. Recursive loops don't have this problem though.

7. Selecting data from two different servers in SQL Server

   stackoverflow.com/questions/1144051

   Querying across 2 different databases is a distributed query. Here is a list of some techniques plus the pros and cons: Linked servers: Provide access to a wider variety of data sources than SQL Server replication provides; Linked servers: Connect with data sources that replication does not support or which require ad hoc access

8. indexing - What is an index in SQL? - Stack Overflow

   stackoverflow.com/questions/2955459

   A clustered index is like the contents of a phone book. You can open the book at 'Hilditch, David' and find all the information for all of the 'Hilditch's right next to each other.

9. What are the downsides to using dependency injection?

   stackoverflow.com/questions/2407540

   This is really more of a downside of loosely coupled code (code that's designed by interface), and applies even if you don't use dependency injection (i.e., even if you simply use factories). But the advent of dependency injection is what really encouraged loosely coupled code to the masses, so I thought I'd mention it.

10. What is primary and secondary clustering in hash?

    stackoverflow.com/questions/27742285

    29. Primary clustering means that if there is a cluster and the initial position of a new record would fall anywhere in the cluster the cluster size increases. Linear probing leads to this type of clustering. Secondary clustering is less severe, two records do only have the same collision chain if their initial position is the same.

11. decimal vs double! - Which one should I use and when?

    stackoverflow.com/questions/1165761

    It's why it was created. If numbers must add up correctly or balance, use decimal. This includes any financial storage or calculations, scores, or other numbers that people might do by hand. If the exact value of numbers is not important, use double for speed. This includes graphics, physics or other physical sciences computations where there ...