Data Analytics Analyst Interview Questions and Answers

Use SQL JOIN to combine data from two tables into a single table format.

• Use the JOIN keyword in SQL to combine data from two tables based on a related column.

• Specify the columns you want to retrieve from each table in the SELECT statement.

• Use the ON keyword to specify the column from each table that should be used for the join condition.

• You can use different types of joins such as INNER JOIN, LEFT JOIN, RIGHT JOIN, or FULL JOIN based on your requirements.

SQL query to retrieve number of students grouped by streams

• Use the GROUP BY clause to group students by their streams

• Use the COUNT function to retrieve the number of students in each group

• Example: SELECT stream, COUNT(student_id) FROM students_table GROUP BY stream

Interacting with one on one involves clear communication, active listening, and building rapport.

• Maintain eye contact to show attentiveness

• Ask open-ended questions to encourage conversation

• Practice active listening by paraphrasing and summarizing what the other person says

• Show empathy and understanding towards their perspective

• Build rapport by finding common ground or shared interests

SQL is a programming language used for managing and manipulating relational databases.

• SQL stands for Structured Query Language

• It is used to communicate with databases to perform tasks such as querying data, updating data, and creating tables

• Common SQL commands include SELECT, INSERT, UPDATE, DELETE

• SQL is used in various database management systems such as MySQL, PostgreSQL, Oracle

• Knowledge of SQL is essential for data analysis and data manipulation tasks