10+ e2open Interview Questions and Answers

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

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

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

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.

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.

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

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;

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.

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

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

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.

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

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.