Sql Developer Interview Questions

Sql Developer Interview Questions

SQL stands for Structured Query Language, and SQL developers create SQL databases and the applications that work with them. They often use design tables and storing procedures for stability, reliability, and performance. In an SQL developer interview, employers often ask questions about your programming knowledge and problem-solving skills.

Top SQL Developer Interview Questions & How to Answer

Question 1

Question #1: What are the types of keys in SQL, and when would you use them?

How to answer
How to answer: This question lets you demonstrate your knowledge of SQL. Discuss the most common types of SQL keys, and talk about how they can identify rows and columns in tables. Keys work as unique identifiers, allowing users to retrieve data easily.
Question 2

Question #2: What are the types of normalization available in SQL, and how do you use them?

How to answer
How to answer: People use SQL normalization to organize data and reduce redundancies. You can demonstrate your experience by discussing the normalization methods you use most. For example, many developers divide a large table into several smaller ones for easier readability.
Question 3

Question #3: What programming languages are you familiar with?

How to answer
How to answer: Many SQL developers also use JavaScript, HTML, Python, PL/SQL, and other languages. Mention the languages you know and how you used them at your previous job. Also, tell the interviewer about any programming certifications you received.

2,209 sql developer interview questions shared by candidates

SQL: Triggers Function syntax Procedure execution Joins how do you optimize slow running query delete and drop Common Table expressions Normalization They will give scenarios and ask you to write the queries. Power Bi: difference of Filter/ slicer page level filters Import mode and direct query Relationships some example scenerio questions: if i take the live data can we refresh the report everyday? if i have 5 lakhs record and 10k records which one you will use import mode or direct mode? Time intelligence functions
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SQL Developer/Data Analyst

Interviewed at Capgemini

4.1
Oct 13, 2025

SQL: Triggers Function syntax Procedure execution Joins how do you optimize slow running query delete and drop Common Table expressions Normalization They will give scenarios and ask you to write the queries. Power Bi: difference of Filter/ slicer page level filters Import mode and direct query Relationships some example scenerio questions: if i take the live data can we refresh the report everyday? if i have 5 lakhs record and 10k records which one you will use import mode or direct mode? Time intelligence functions

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