
e2open


10+ e2open Interview Questions and Answers
Q1. How to call server using servlet
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
Q2. Explain ds algorithm for tree traversal
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
Q3. What is hibernate
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
Q4. What is dialog programming
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.
Q5. Allow only alphabates
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.
Q6. About yourself. Why e2open? Why Channel data management?
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
Q7. Create table using another table
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;
Q8. Index and it's syntax
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.
Q9. Query to fetch highest salary
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
Q10. Delete duplicates in the table
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
Q11. Check all the joins
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.
Q12. Share few words about supply chain management
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
Q13. Delete duplicate records from table
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.
Q14. OOPs concepts in java
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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