Remove duplicate elements in an array
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.
2,214 sql developer interview questions shared by candidates
Indepth about Oracle SQL and PL concepts
What are joins, left join, right join? What are views? What are data types? What is primary key & foreign key? Difference between DBMS & rdbms Difference between truncate, drop& delete statement What are the SQL statements? What is index? Why limit is used? They will ask the familiarity of programming language along with the SQL like Java or python A basic SQL queries.
The online assessment test was oriented for a MSSQL Server DBA rather than an SLQ Developer.
Tell me something about SQL
"Can you walk me through your academic project and the technologies you used?"
Beside the online test, Just 4 technical questions like do you know what is index is.
Puzzle: Four people cross a bridge in 1, 2, 7 and 10 respectively. They have one torch and at a time only two people can cross the bridge. What is the minimum time at which all will cross the bridge?
Explain what a join is.
Q. Tell me about yourself? Q. How was your first round and how you prepared for that? Q. How to select all data from table? Q. How to select specific data from table? Q. What is difference between Truncate and Delete? Q. Which one is better Truncate or Delete? Q. Important data types of the SQL? Q. What is the maximum varchar size? Q. Which one you prefer to do the job Backend or Frontend? Q. Tell me about your academic project? Q. Is there any questions for me?
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