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Azentio Senior Plsql Developer Interview Questions and Answers
Azentio Senior Plsql Developer Interview Experiences
1 interview found
Anonymous
I applied via Walk-in and was interviewed in Oct 2024. There were 3 interview rounds.
Four questions and bout 2 hrs and topics covered are exceptions,database.
(2 Questions)
- Q1. What is index ? and types?
- Ans.
An index is a database object that improves the speed of data retrieval operations on a table.
Indexes are used to quickly locate data without having to search every row in a table.
Types of indexes include B-tree indexes, bitmap indexes, and function-based indexes.
Examples of indexes are primary keys, unique constraints, and indexes created explicitly on columns.
- Q2. What is trigger?
- Ans.
A trigger is a PL/SQL block that is automatically executed in response to certain events on a particular table or view.
Triggers can be used to enforce business rules, audit changes, or replicate data.
They can be classified as row-level triggers (executed for each row affected) or statement-level triggers (executed once for the entire statement).
Examples of trigger events include INSERT, UPDATE, DELETE operations on a t...
(2 Questions)
- Q1. What is materialized view?
- Ans.
A materialized view is a database object that contains the results of a query and is stored on disk for faster access.
Materialized views store the results of a query like a table, allowing for faster access to data.
They are updated periodically to reflect changes in the underlying data.
Materialized views are commonly used in data warehousing and reporting applications.
Example: CREATE MATERIALIZED VIEW mv_sales AS SELEC...
- Q2. Difference between union and union all?
- Ans.
Union combines and removes duplicates, Union All combines without removing duplicates.
Union combines result sets and removes duplicates
Union All combines result sets without removing duplicates
Union is slower than Union All as it involves removing duplicates
Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;
Example: SELECT column1 FROM table1 UNION ALL SELECT column1 FROM table2;
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Interview Questionnaire
1 Question
- Q1. Collections,SQL
Interview Questionnaire
1 Question
- Q1. Case Studies
Interview Preparation Tips
Interview Questionnaire
6 Questions
- Q1. Strings
- Q2. Java 8 features like lamba expressions stream API
- Q3. Collections
- Q4. Autoboxing and Unboxing
- Q5. Generics
- Q6. String manipulation problems
- Ans.
String manipulation problems involve modifying or analyzing strings of characters.
Use built-in string methods like substring, replace, and split.
Regular expressions can be powerful tools for pattern matching and manipulation.
Be mindful of edge cases like empty strings and null values.
Consider the time and space complexity of your solution.
Practice with coding challenges on websites like LeetCode and HackerRank.
Skills evaluated in this interview
mahesh mahe
I appeared for an interview in Jan 2021.
Interview Questionnaire
1 Question
- Q1. One Program with c#
- Ans.
A C# program to demonstrate basic concepts like variables, loops, and conditionals.
Use 'int' for integers: int number = 5;
Implement loops: for (int i = 0; i < 5; i++) { Console.WriteLine(i); }
Use conditionals: if (number > 0) { Console.WriteLine('Positive'); }
Interview Preparation Tips
Skills evaluated in this interview
I applied via Recruitment Consultant and was interviewed in Oct 2020. There were 4 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Understanding of US Healthcare.
- Q2. Why should we hire you?
- Q3. Case study to check your problem solving skills
- Ans.
Analyzing a business problem to identify solutions and improve processes effectively.
Define the problem clearly: Understand the core issue, e.g., declining sales.
Gather data: Use surveys or sales reports to identify trends.
Analyze root causes: Apply techniques like the 5 Whys to dig deeper.
Develop solutions: Brainstorm potential strategies, e.g., new marketing campaigns.
Evaluate options: Assess feasibility and impact o...
Interview Preparation Tips
I appeared for an interview before Mar 2021.
(3 Questions)
Round duration - 60 minutes
Round difficulty - Easy
This was a technical round with questions on DBMS.
- Q1. What is data integrity?
- Ans.
Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle.
Data integrity ensures that data is accurate and consistent in storage and transmission.
It involves maintaining the quality and reliability of data over time.
Methods for ensuring data integrity include checksums, encryption, and error detection codes.
Examples of data integrity violations include data corruption, unautho...
- Q2. What is a trigger in the context of a database management system?
- Ans.
A trigger is a special type of stored procedure that automatically executes when certain events occur in a database.
Triggers are used to enforce business rules, maintain data integrity, and automate repetitive tasks.
They can be triggered by INSERT, UPDATE, or DELETE operations on a table.
Examples of triggers include auditing changes to a table, updating related tables when a record is modified, or enforcing referential...
- Q3. What is the difference between clustered and non-clustered indexes in a database management system?
- Ans.
Clustered indexes physically order the data in the table, while non-clustered indexes do not.
Clustered indexes determine the physical order of data in the table, while non-clustered indexes do not.
A table can have only one clustered index, but multiple non-clustered indexes.
Clustered indexes are faster for retrieval of data, especially range queries, compared to non-clustered indexes.
Non-clustered indexes are stored se...
(3 Questions)
Round duration - 60 minutes
Round difficulty - Easy
Technical interview round with questions on DBMS.
- Q1. What is the difference between UNION and UNION ALL in SQL?
- Ans.
UNION combines and removes duplicates, UNION ALL combines without removing duplicates.
UNION merges the result sets of two or more SELECT statements and removes duplicates.
UNION ALL merges the result sets of two or more SELECT statements without removing duplicates.
UNION is slower than UNION ALL as it involves removing duplicates.
Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;
Example: SELECT column...
- Q2. What are the functions of a cursor in PL/SQL?
- Ans.
A cursor in PL/SQL is used to retrieve and process multiple rows of data one at a time.
Allows iteration over a result set
Retrieves data row by row
Can be used to update or delete rows in a table
Must be declared, opened, fetched, and closed
- Q3. Write a SQL query to fetch the nth highest salary from a table.
- Ans.
SQL query to fetch the nth highest salary from a table
Use the ORDER BY clause to sort salaries in descending order
Use the LIMIT clause to fetch the nth highest salary
Round duration - 30 minutes
Round difficulty - Easy
This was a managerial round with typical behavioral problems.
Interview Preparation Tips
Tip 1 : Since this was a SQL post, I would suggest you to get the basics intact and try practicing few queries.
Tip 2 : Must do Previously asked Interview as well as Online Test Questions.
Tip 3 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
I applied via Company Website and was interviewed before Jul 2020. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Scrum
- Q2. Agile
Interview Preparation Tips
Nirban Chatterjee
I applied via Naukri.com and was interviewed before Oct 2019. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Normal php questions like overriding,overloading,traits,interface,abstarct class nothing else.. It was online but in 2016.
- Q2. Go though those topic as they are very important and asked in most companies.
Interview Preparation Tips
Interview Questionnaire
3 Questions
- Q1. Tell us about yourself
- Ans.
I am a business analyst with experience in data analysis and project management.
I have a degree in business administration
I have worked with various industries including healthcare and finance
I am skilled in data visualization and reporting
I have experience in leading cross-functional teams
I am proficient in SQL and Excel
- Q2. What is your area of interest?
- Ans.
My area of interest is data analysis and visualization.
I enjoy working with large datasets and finding insights through data analysis.
I have experience using tools such as Excel, Tableau, and Python for data analysis and visualization.
I am interested in exploring new data sources and learning new techniques for data analysis.
For example, I recently worked on a project analyzing customer behavior data for a retail compa...
- Q3. What are the other companies you have applied to and how many rounds of the selection process have you cleared there?
Interview Preparation Tips
Experience: The selection process was open for students from all branches. Around 70 students were shortlisted based on their resume. Shortlisting was mainly on CGPA basis and on an average 5 top students were shortlisted from each branch.
Round: Test
Experience: There was a written test conducted for shortlisted candidates. The test was primarily based on the CAT pattern where questions were asked from verbal reasoning, logical reasoning and quantitative aptitude. The test comprised of 2 sections. First section comprised of 3 HR questions:
Why do you want to join this company?
Tell us about yourself.
Describe a situation where you displayed leadership skills.
These 3 questions were to be typed out in 150–200 words each in a total of 20 minutes. Second section started immediately after this. 25 minutes were given to answer 35 multiple choice questions from various sections including 10 coding based questions. The difficulty level was medium.
Duration: 45 minutes
Total Questions: 38
Round: HR Interview
Experience: They asked me to tell them about myself and also some puzzles and core field related questions. Interview was conducted using Skype. It started with basic HR question and then the interviewer asked me about my area of interest. He asked two questions from that field and then asked me to solve one guesstimate case. There was another question on the definition of data analysis.
My area of interest was Operations Research. First he asked me to explain transportation problem and second question was about solving a transshipment problem using Excel solver software. Other candidates were also asked some puzzles and several other HR questions.
College Name: IIT ROORKEE
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