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Programador Sql Interview Questions

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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

Question 1

Pregunta n.º 1: ¿Qué tipos de claves existen en SQL y cuándo las usarías?

How to answer
Respuesta recomendada: Esta pregunta te permite mostrar tus conocimientos de SQL. Explica los tipos más comunes de claves en SQL e indica cómo pueden identificar filas y columnas en las tablas. Las claves funcionan como identificadores únicos, lo que permite que los usuarios recuperen los datos con facilidad.
Question 2

Pregunta n.º 2: ¿Qué tipos de normalización existen en SQL y cuándo los usas?

How to answer
Respuesta recomendada: La normalización en SQL suele utilizarse para organizar datos y reducir redundancias. Puedes demostrar tu experiencia explicando los métodos de normalización que más usas. Por ejemplo, muchos programadores dividen una tabla grande en varias más pequeñas para facilitar la lectura.
Question 3

Pregunta n.º 3: ¿Con qué lenguajes de programación estás familiarizado?

How to answer
Respuesta recomendada: Muchos desarrolladores usan además JavaScript, HTML, Python, PL/SQL y otros lenguajes. Enumera los lenguajes que conoces y explica cómo los has usado en tu empleo anterior. Además, menciona los títulos de programación que posees.

710,950 programador sql interview questions shared by candidates

Design an alert system. You have 500,000 hotels you represent, and about 250,000 are visited each day. You want to track hotel page visits such that, if more than 10 visitors per a) 5 minutes, b) 1 hour, and c) 24 hours occur, then a (different for each time period) "alert" appears when someone visits one of those "hot" hotel pages. Don't worry about the UI part, just design the underlying alert system. Then optimize your solution for space.
avatar

Senior Software Engineer

Interviewed at Tripadvisor

3.5★
Apr 6, 2012

Design an alert system. You have 500,000 hotels you represent, and about 250,000 are visited each day. You want to track hotel page visits such that, if more than 10 visitors per a) 5 minutes, b) 1 hour, and c) 24 hours occur, then a (different for each time period) "alert" appears when someone visits one of those "hot" hotel pages. Don't worry about the UI part, just design the underlying alert system. Then optimize your solution for space.

Given an input stream of an indeterminate length, how do you return a random member of that stream (with equal probability for each), given that you're not allowed to store more than a constant number of inputs, and you can only go through the inputs once.
avatar

Software Engineer

Interviewed at Tripadvisor

3.5★
Feb 25, 2015

Given an input stream of an indeterminate length, how do you return a random member of that stream (with equal probability for each), given that you're not allowed to store more than a constant number of inputs, and you can only go through the inputs once.

1.How much testers working? If you tell 4 testers , he will ask why 4 too many.. If you tell two why only two he will ask? 2.Why your company dont have agile? 3.If you tell that you have stand up meeting in non agile, he will ask, in agile only stand up meeting happen, he will reply.. The thing is stand up meeting is normal in all company, it is not a goverment policy that Agile process only has stand up meeting.. 4. What is your project dead line? 5.Do you have any fight with your team lead? So you planned to quit?
avatar

Software Test Engineer

Interviewed at Innoppl

3.9★
Feb 23, 2018

1.How much testers working? If you tell 4 testers , he will ask why 4 too many.. If you tell two why only two he will ask? 2.Why your company dont have agile? 3.If you tell that you have stand up meeting in non agile, he will ask, in agile only stand up meeting happen, he will reply.. The thing is stand up meeting is normal in all company, it is not a goverment policy that Agile process only has stand up meeting.. 4. What is your project dead line? 5.Do you have any fight with your team lead? So you planned to quit?

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