Spacempact Consulting Interview Questions and Answers

I have 5 years of experience in SQL. My last project involved optimizing database queries for a large e-commerce platform.

• 5 years of experience in SQL

• Optimized database queries for a large e-commerce platform

• Worked on improving performance and efficiency of database operations

I can join the company within two weeks, allowing time for a smooth transition and to wrap up my current commitments.

• Notice Period: I have a two-week notice period at my current job, which is standard in my industry.

• Transition Planning: This timeframe allows me to ensure a smooth handover of my responsibilities.

• Preparation: I can use this time to prepare for my new role, including reviewing company materials and brushi...read more

SQL is a programming language used for managing data in relational databases. Window functions are used for calculations within a specific window of rows. Joins are used to combine data from multiple tables based on a related column.

• SQL stands for Structured Query Language and is used for managing data in relational databases

• Window functions in SQL allow for calculations to be performed within a specific window of rows

• ...read more

Query to retrieve employee details with maximum salary in each department

• Use a subquery to get the maximum salary for each department

• Join the subquery with the main employee table to retrieve employee details

• Display employee details along with their respective salaries

DDL is Data Definition Language used to define database structure, while DML is Data Manipulation Language used to manage data within database.

• DDL is used to create, modify, and delete database objects like tables, indexes, etc.

• DML is used to insert, update, delete, and retrieve data from database tables.

• DDL statements include CREATE, ALTER, DROP, TRUNCATE, etc.

• DML statements include INSERT, UPDATE, DELETE, SELECT, etc...read more