pwc question and answer in sql | top interview questions and answer in sql |

In this video we will be solving very interesting problem which was asked in the "PwC interview" in SQL.
"pwc question and answer" in sql
"sql question and answer"
Create table Statement :
====================
CREATE TABLE pwc_attandance_log (
emp_id INT,
log_date DATE,
flag CHAR
);
insert into pwc_attandance_log(emp_id,log_date,flag) values
(101,'02-01-2024','N'),
(101,'03-01-2024','Y'),
(101,'04-01-2024','N'),
(101,'07-01-2024','Y'),
(102,'01-01-2024','N'),
(102,'02-01-2024','Y'),
(102,'03-01-2024','Y'),
(102,'04-01-2024','N'),
(102,'05-01-2024','Y'),
(102,'06-01-2024','Y'),
(102,'07-01-2024','Y'),
(103,'01-01-2024','N'),
(103,'04-01-2024','N'),
(103,'05-01-2024','Y'),
(103,'06-01-2024','Y'),
(103,'07-01-2024','N');
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