Advanced SQL Interview Questions and Answers SQL Advanced Interview Questions for Experienced Professionals ( 3 – 5 years) Basic 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 uniquely identify ever...
so employers test candidates on various concepts ranging from basic to advanced-level queries. This blog covers common SQL interview questions and their answers to help you succeed in your next interview.
For SQL interview questions that ask you to talk about the advantages or disadvantages of a certain component or tool, ensure that you list as many as you can. Also, you can make your answer to such an SQL interview question meaty by adding personal anecdotes about some of the advantages o...
Basic SQL JOINS Interview Questions and Answers for Freshers 1. What is SQL JOINS? The SQL JOIN component joins rows from one or more tables in a relational database. Create sets that can be stored in tabular form or used routinely. JOIN is to combine columns from one table or multiple ...
A subquery in SQL is like a query within a query. It helps you ask specific questions within a larger question. This nested query is used to filter or calculate data in a structured way. What is an SQL server? An SQL server is a software application that manages and stores databases. ...
Query 4: Write a query in SQL to find the minimum and maximum number from the integer column: ADVERTISEMENT ADVERTISEMENT Sol: Syntax to find the maximum and minimum number from the column: SELECTMAX(Column_Name),MIN(Column_Name)FROMTable_Name; ...
There are mainly two types of indexes in SQL Servers Clustered Index and Non-Clustered Index. Conclusion Above is the list of common interview questions which you can expect as an SQL server developer. The answers are for your reference you can read them in detail using other sources or artic...
The following are the most popular and useful SQL interview questions and answers for fresher and experienced candidates. These questions are created specifically to familiarise you with the types of questions you might encounter during your SQL interview. According to our experiences, good interviewers...
100. How do you update F as M and M as F from the below table TestTable? Basic & Advanced SQL Server Interview Questions And Answers Let’s start with common SQL Interview Questions first. 1. What is a Database? A database is a collection of information in an organized form for fast...
While SQL executes one query at a time, PL/SQL can run an entire block or multiple operations in a single execution. PL/SQL does not interact directly with the database server, while SQL does. Generally, SQL is used for DDL and DML statements, whereas PL/SQL is used to write program ...