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10+ e2open Interview Questions and Answers

Updated 18 Sep 2024

Q1. 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 response data

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Q2. 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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Q3. 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 data in a web application by mapping Java classes to datab...read more

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Q4. What is dialog programming

Ans.

Dialog programming is a method used in SAP to create interactive user interfaces for applications.

  • Dialog programming involves creating screens with input fields, buttons, and other UI elements.

  • It allows for user interaction and data input in SAP applications.

  • Dialog programming uses modules like screen painter and menu painter to design the user interface.

  • Example: Creating a sales order entry screen in SAP using dialog programming.

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Q5. Allow only alphabates

Ans.

The question is asking to allow only alphabets in the input.

  • Use regular expressions to check if the input contains only alphabets.

  • You can use functions like isalpha() in programming languages like Python to validate the input.

  • Handle edge cases like spaces, special characters, and numbers in the input.

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Q6. About yourself. Why e2open? Why Channel data management?

Ans.

I have a strong background in data analysis and a passion for technology. I chose e2open for its innovative solutions and Channel data management for its impact on business performance.

  • I have a degree in data analytics and have worked on various data projects in the past.

  • I am drawn to e2open for its reputation as a leader in supply chain management solutions.

  • Channel data management is crucial for optimizing sales and marketing strategies, which aligns with my career goals.

  • I b...read more

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Q7. 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 SELECT * FROM existing_table WHERE condition;

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Q8. 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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Q9. 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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Q10. 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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Q11. Check all the joins

Ans.

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 the two tables.

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Q12. Share few words about supply chain management

Ans.

Supply chain management involves the coordination and optimization of all activities involved in the production and delivery of goods and services.

  • It includes planning, sourcing, manufacturing, logistics, and customer service.

  • Effective supply chain management can lead to cost savings, improved efficiency, and increased customer satisfaction.

  • Examples of supply chain management tools include inventory management software, transportation management systems, and demand forecastin...read more

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Q13. Delete duplicate records from table

Ans.

To delete duplicate records from a table, we can use the DELETE statement with a subquery.

  • Identify the columns that define a duplicate record.

  • Write a subquery to select the duplicate records.

  • Use the DELETE statement with the subquery to delete the duplicate records.

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Q14. OOPs concepts in java

Ans.

OOPs concepts in Java include encapsulation, inheritance, polymorphism, and abstraction.

  • Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

  • Inheritance: Allows a class to inherit properties and behavior from another class.

  • Polymorphism: Ability to present the same interface for different data types.

  • Abstraction: Hiding the implementation details and showing only the necessary features of an object.

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