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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 It leads to more storage and are also a maintenance overhead as Indexes become become fragmented or outdated and need to be organized.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. What is the difference between concurrency and parallelism?

   stackoverflow.com/questions/1050222

   40. Parallelism is simultaneous execution of processes on a multiple cores per CPU or multiple CPUs (on a single motherboard). Concurrency is when Parallelism is achieved on a single core/CPU by using scheduling algorithms that divides the CPU’s time (time-slice). Processes are interleaved.

5. 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.

6. 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.

7. 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.

8. c# - 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 ...

9. What is an ORM, how does it work, and how should I use one?

   stackoverflow.com/questions/1279613

   Pros and Cons. Using ORM saves a lot of time because: DRY: You write your data model in only one place, and it's easier to update, maintain, and reuse the code. A lot of stuff is done automatically, from database handling to I18N. It forces you to write MVC code, which, in the end, makes your code a little cleaner.

10. What are the Pros and Cons of Cascading delete and updates?

    stackoverflow.com/questions/3578975

    1. Pros: Data integrity - Can help avoid situations where a record refers to something that is no longer there. Cons: Performance - Cascading deletes/updates can be sloooooooooooooooooooow.

11. What is primary and secondary clustering in hash?

    stackoverflow.com/questions/27742285

    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.