SQL son las siglas de Structured Query Language (lenguaje de consulta estructurado) y un programador SQL es la persona encargada de crear bases de datos SQL y las aplicaciones que funcionan con ellas. Por lo general, utilizan tablas de diseño y recursos de almacenamiento para mayor estabilidad, fiabilidad y rendimiento. En una entrevista para un puesto de programador SQL, pueden hacerte preguntas sobre tus conocimientos de programación y habilidades de resolución de problemas.
There are 4 people who want to cross a bridge. They each take 1, 2, 5 and 8 minutes. Only 2 people can cross at a time and they take as long as the slowest person. What is the fastest time you can get everyone across? Then I was asked to write the mathematical equation to determine the trade-off point between each of the 2 approaches to solving this.
Find the nth element in a linked list in constant time and space.
Given a string of format '2+3*2-1', calculate and return the result. No parenthesis in the input, just integers and + - * / operators. Operator precedence has to be considered. Linear time complexity and minimal data structure use is preferred.
Given a triangle, determine if its a scalene, equilateral, isosceles or neither... required knowledge of triangle properties, I learnt these properties about two decades ago so ofcourse I was fuzzy on the details, completely unexpected
Save a tree to an array
What are the most challenging tasks you faced in your previous projects and how did you handle them
implement strtok
Imagine you have a string and you want to return False if there are repeat characters in this string, what are the fastest and most space efficient ways to do this. (I clarified and he only wanted to return False if there was a repeat letter or number)
Probability of a knight making a valid move on NxN matrix in m steps.
Find count of unique characters in a given string
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