Apisero fresher Interview Questions and Answers

Answering questions on primary and foreign keys, truncate command, and reversing a string.

• Primary key is a unique identifier for a record in a table, while foreign key is a reference to a primary key in another table.

• Truncate command deletes all data from a table, but keeps the structure intact.

• To reverse a string, you can use a loop to iterate through the characters and append them in reverse order to a new string.

Garbage collection is an automatic memory management process. OOPS principles are encapsulation, inheritance, and polymorphism.

• Garbage collection is the process of automatically freeing up memory that is no longer being used by a program.

• It helps prevent memory leaks and makes programming easier by removing the need for manual memory management.

• OOPS principles are encapsulation, inheritance, and polymorphism.

• Encapsulat...read more