Suma Soft Interview Questions and Answers

Join is a SQL operation used to combine rows from two or more tables based on a related column between them.

• Join is used to retrieve data from multiple tables based on a related column.

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;

Stored procedure is a set of SQL statements that are stored in the database and can be called by name to perform a specific task.

• Stored procedures can improve performance by reducing network traffic and improving security.

• They can be used to encapsulate business logic and provide a consistent interface to the database.

• Stored procedures can accept parameters and return results like a function.

• Examples: sp_GetCustomerByI

The like operator is used in SQL to search for a specified pattern in a column.

• The like operator is used with the WHERE clause in a SQL statement

• It allows for pattern matching using wildcard characters such as % (matches any sequence of characters) and _ (matches any single character)

• Example: SELECT * FROM table_name WHERE column_name LIKE 'pattern%'

Encapsulation in .NET is the concept of bundling data and methods that operate on the data into a single unit, known as a class.

• Encapsulation helps in hiding the internal state of an object and restricting access to it.

• It allows for better control over the data by preventing outside code from directly accessing or modifying it.

• Access to the data is provided through methods, which can enforce validation rules or perform...read more