e2open Interview Questions and Answers

Q1. What is hibernate
Ans. 
Hibernate is an ORM tool for Java that simplifies database access by mapping Java classes to database tables.
• Hibernate provides a framework for mapping object-oriented domain models to relational databases.

• It supports various mapping strategies, including annotations and XML configuration files.

• Hibernate also provides caching, transaction management, and query language support.

• Example: Hibernate can be used to persist ...read more
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Q2. How to call server using servlet
Ans. 
To call server using servlet, we need to create a URL connection and send HTTP request.
• Create a URL object with the server URL

• Open a connection to the server using the URL object

• Set the request method (GET, POST, etc.) and any request headers

• Get the output stream from the connection and write any request data

• Read the response from the server using the input stream from the connection

• Close the connection and process the
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Q3. Explain collection, basic coding questions
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Q4. Explain ds algorithm for tree traversal
Ans. 
DS algorithm for tree traversal is used to visit each node of a tree exactly once.
• Depth First Search (DFS) - Preorder, Inorder, Postorder

• Breadth First Search (BFS)

• DFS is recursive while BFS uses a queue

• Preorder - Root, Left, Right

• Inorder - Left, Root, Right

• Postorder - Left, Right, Root
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Q1. What you bring to the table
Ans. 
I bring a strong technical background, problem-solving skills, and a passion for software development.
• Strong technical background in software engineering

• Proficient in multiple programming languages such as Java, Python, and C++

• Experience with software development methodologies like Agile

• Excellent problem-solving and analytical skills

• Ability to work well in a team and collaborate effectively

• Passion for learning and stay...read more
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Q2. What are your salary expectation
Ans. 
I expect a competitive salary based on my experience, skills, and the market rate for software engineers.
• Research the average salary range for software engineers in your location and industry.

• Consider your years of experience, level of expertise, and any specialized skills you possess.

• Factor in the company's size, reputation, and financial stability.

• Be prepared to negotiate and discuss benefits and perks in addition to...read more
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Q1. Create table using another table
Ans. 
To create a table using another table, use the CREATE TABLE AS SELECT statement.
• Use the CREATE TABLE AS SELECT statement to create a new table based on the structure and data of an existing table.

• Specify the new table name after CREATE TABLE and the existing table name after AS SELECT.

• You can also add conditions or filters to the SELECT statement to customize the data being copied.

• Example: CREATE TABLE new_table AS SEL
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Q2. Check all the joins
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The question is asking to identify different types of joins in SQL.
• Inner Join: Returns rows when there is a match in both tables.

• Left Join: Returns all rows from the left table and the matched rows from the right table.

• Right Join: Returns all rows from the right table and the matched rows from the left table.

• Full Outer Join: Returns rows when there is a match in either table.

• Cross Join: Returns the Cartesian product of
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Q3. Index and it's syntax
Ans. 
An index is a database object that improves the speed of data retrieval operations on a table.
• Indexes can be created on one or more columns of a table.

• Syntax to create an index: CREATE INDEX index_name ON table_name(column_name);

• Indexes can be unique or non-unique.

• Indexes can be used to enforce uniqueness constraints.

• Indexes can improve query performance by reducing the number of rows that need to be scanned.
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Q4. Query to fetch highest salary
Ans. 
Use SQL query with MAX function to fetch highest salary from the database.
• Use SELECT statement with MAX function to retrieve highest salary

• Specify the column name for salary in the SELECT statement

• Include the table name in the query if needed
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Q5. Delete duplicates in the table
Ans. 
Use a DELETE statement with a subquery to remove duplicates in a table.
• Identify the columns that define duplicates

• Use a subquery to select the rows to be deleted

• Use the DELETE statement to remove the duplicates
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Basic java program,selenium, rest assured and cucumber

Q1. Reason for change
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Q1. Expected ctc and doc
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Q1. Tell about yourself and details of project?
Ans. 
I am a software engineer with experience in developing web applications using Java and Spring framework.
• Worked on a project to develop a web application for a retail company to manage their inventory and sales.

• Used Java and Spring framework to build the backend logic and RESTful APIs.

• Implemented front-end using HTML, CSS, and JavaScript with AngularJS framework.

• Collaborated with a team of developers and testers to deli
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Q2. Sql questions,joins,unique?
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