Deloitte SQL Interview Question | BIG 4 | Forward Filling | Deepankar Pathak

📊 Mastering SQL Interview Question 📊

Here we are going to discuss SQL Interview Questions, These are the same SQL Interview Questions and answers, that are from the KPMG SQL Interview Problem. KPMG interview question that I could not answer in the Interview.

This will be beneficial for you if you are preparing for the role of data engineer.

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SCRIPT USED :-

CREATE TABLE tableName (
Id VARCHAR(512),
Student_id INT,
Dept_id VARCHAR(512)
);

INSERT INTO tableName (Id, Student_id, Dept_id) VALUES ('1', '1', '105');
INSERT INTO tableName (Id, Student_id, Dept_id) VALUES ('1', '2', NULL);
INSERT INTO tableName (Id, Student_id, Dept_id) VALUES ('1', '3', NULL);
INSERT INTO tableName (Id, Student_id, Dept_id) VALUES ('1', '4', NULL);
INSERT INTO tableName (Id, Student_id, Dept_id) VALUES ('1', '11', '110');
INSERT INTO tableName (Id, Student_id, Dept_id) VALUES ('1', '12', NULL);
INSERT INTO tableName (Id, Student_id, Dept_id) VALUES ('1', '13', NULL);
INSERT INTO tableName (Id, Student_id, Dept_id) VALUES ('1', '14', NULL);

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