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Programador Sql Interview Questions
Programador Sql Interview Questions
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.
Preguntas de entrevista más frecuentes para programador/a SQL y cómo responderlas
Pregunta n.º 1: ¿Qué tipos de claves existen en SQL y cuándo las usarías?
Pregunta n.º 2: ¿Qué tipos de normalización existen en SQL y cuándo los usas?
Pregunta n.º 3: ¿Con qué lenguajes de programación estás familiarizado?
711,670 programador sql interview questions shared by candidates
If a ping pong ball was stuck in a pipe that is cemented in the ground how would you get it out?
Matrix with numbers start from top left and move to bottom left. You can move left or down. Maximize the total sum on your path op left and move to bottom left.
Input is a string like "AAAAABBCCAA" and it should print "5A2B2C2A". 5 being the continuous number of occurance for character 'A'. Same is with other characters also.
what is 2^4
Online Test
1. Given an array that contains duplicates (except for one value), find the one value that does not have a duplicate in that array. Explain the complexity of your algorithm. So in the array: A = [2, 3, 4, 5, 2, 3, 4] your algorithm should return 5 since that's the value that does not have a duplicate. 2. Explain the process that happens when you type your username and hit submit on a website (HTTP, server/client communication, etc...)
Last interviews question for which I got 10 mins was a tricky one. He wanted me to implement Google's "Did you mean" logic.
Given an array of pairs of numbers, simplify the numbers. The pairs represent ranges, and the result is a simplified version of these pairs. So [1,5],[3,7] should result in [1,7].
Interview question like that Q: 01 Given: 11. public static void parse(String str) { 12. try { 13. float f = Float.parseFloat(str); 14. } catch (NumberFormatException nfe) { 15. f = 0; 16. } finally { 17. System.out.println(f); 18. } 19. } 20. public static void main(String[] args) { 21. parse("invalid"); 22. } What is the result? A. 0.0 B. Compilation fails. C. A ParseException is thrown by the parse method at runtime. D. A NumberFormatException is thrown by the parse method at runtime. Answer: B
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