Read this free guide below with common Database Engineer interview questions
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A database is an organized collection of data stored and accessed electronically.
The different types of database management systems are relational, object-oriented, hierarchical, network, and NoSQL.
SQL (Structured Query Language) is a programming language used to manage and manipulate databases.
A primary key is a field in a table that uniquely identifies each record.
A foreign key is a field in one table that references the primary key of another table.
Normalization is the process of organizing data in a database to eliminate redundancy.
Denormalization is the process of adding redundant data to a database to improve performance.
Indexing is the process of creating a data structure to speed up the retrieval of records from a database.
A view is a virtual table based on the result of an SQL statement.
A stored procedure is a precompiled set of SQL statements that can be called by other programs or scripts.
Data warehousing is the process of collecting, storing, and analyzing data from different sources to support business decisions.
ETL (Extract, Transform, Load) is the process of extracting data from different sources, transforming it to fit the data warehouse schema, and loading it into the data warehouse.
NoSQL (Not Only SQL) is a type of database management system that does not use the traditional relational model.
Sharding is the process of splitting a large database into smaller, more manageable pieces called shards.
A transaction is a group of SQL statements that are executed as a single unit of work.
Data modeling is the process of creating a conceptual representation of data to support the development of a database.
Parallel processing is the simultaneous execution of multiple operations or tasks.
Replication is the process of copying data from one database to another database.
Backup and recovery is the process of creating copies of data to protect against data loss or corruption, and restoring the data if necessary.
Database security is the protection of data from unauthorized access, use, disclosure, disruption, modification, or destruction.
Preparing for a database engineer interview can be challenging, as the role requires a combination of technical knowledge, problem-solving skills, and the ability to communicate complex information to non-technical team members. Here are some tips to help you prepare for your database engineer interview:
Preparing for your database engineer interview requires a mix of technical knowledge, problem-solving abilities, and good interpersonal skills. By following these tips, you can increase your chances of success and feel fully prepared for your interview. Good luck!
Speaking ill of past employers can be seen as unprofessional and could raise questions about your attitude. Focus on what you've learned from past experiences, even difficult ones, rather than the negatives.
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