Programming Memo

This collection is a summary of memos, short reminders about various topics. The intent is neither a tutorial nor providing working examples, but to provide short notices about various programming concepts. Therefore the primary target of this collection are those already having deep knowledge on various parts of programming. For the new topics it is recommended first to find tutorials, and then working examples, and then these could be used as reference.

What are the synchronization possibilities in Java? How are GROUP BY and HAVING in SQL statements used? Which HTTP methods do exist? This collection gives short reminders on these questions.

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