This is a personal note to prepare for Software Engineer position.

Algorithm

  • Array
  • Stack
  • Queue
  • LinkedList
  • HashMap
  • Graph
  • Tree
  • Tries
  • Dictionaries
  • Heap

Algorithm Analysis:

  • Omicron— upper bound
  • Theta — average bound
  • Omega — lower bound

Algorithm:

  • Sorting
  • Searching
  • String manipulation
  • Recursion and Backtracking
  • Dynamic Programming
  • Greedy Algorithm

Links:

  • Hacker Rank…

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Check if your rows are already commited in your database.

Use the COMMIT statement to end your current transaction and make permanent all changes performed in the transaction. A transaction is a sequence of SQL statements that Oracle Database treats as a single unit. This statement also erases all savepoints…

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