SQL Interview Questions for Freshers 1. What is the difference between a primary key and a unique key? Primary Key: The primary key is used to identify every record in a table uniquely. It ensures that NULL values are not present in the table. Unique Key: The unique key also identifies...
SQL Interview Questions 1. What is Pattern Matching in SQL? 2. How to create empty tables with the same structure as another table? 3. What is a Recursive Stored Procedure? 4. What is a Stored Procedure? 5. What is Collation? What are the different types of Collation Sensitivity? 6....
SQL interview questions are asked in almost all interviews because database operations are very common in applications. SQL stands for Structured Query Language, which is a domain-specific programming language used for database communications and relational database management. SQL consists of standard c...
SQL Interview Questions with Answers SQL is the standard language for retrieving, updating, inserting and deleting data from a database. It ranks third in the list of themost used programming, scripting, and markup languagessurvey made by StackOverflow in 2022. Therefore SQL is essential and shou...
This post will undoubtedly give you some insights if you’re looking for questions and answers to use while you prepare for a SQL interview. In a job interview for a data engineer, data analyst,database administrator, etc., the following questions should be expected. ...
The objective of today’s article is to help you prepare for an Interview or test the knowledge you gain in your learning of SQL language. It covers the basic knowledge and advanced knowledge of SQL language and common scenario-based Interview questions that the Interviewer may expect you to ...
Check out MOLAP, ROLAP and HOLAP in SQL Server books online for more infomation. 16. What are the new features introduced in SQL Server 2000 (or the latest release of SQL Server at the time of your interview)? What changed between the previous version of SQL Server and the current version...
Here, we share the basic and advanced SQL queries asked in interview questions. Our tutorials explain the SQL syntax and commands in a super easy way.
Ans: Frequently asked SQL Interview Questions 1.DDL – Data Definition Language.DDL is used to define the structure that holds the data. 2.DML– Data Manipulation Language DML is used for manipulation of the data itself. Typical operations are Insert, Delete,Update ...
Advanced PL/SQL Interview Questions Let's now explore some advanced interview questions in case you are applying for a more senior role that requires more experience. 10. What are the methods of optimizing performance in PL/SQL? Minimizing context switches between SQL and PL/SQL is crucial for...