Example 1 on Correlated Nested Queries in SQL || Lesson 90 || DBMS || Learning Monkey || скачать в хорошем качестве

Example 1 on Correlated Nested Queries in SQL || Lesson 90 || DBMS || Learning Monkey ||

Example 1 on Correlated Nested Queries in SQL In this class, we will try to understand Example 1 on Correlated Nested Queries in SQL. We have already discussed the concepts of Correlated Nested Queries in our previous classes. Example 1 on Correlated Nested Queries in SQL The query is as shown below. Write a query to find the employees who work on at least 2 projects. To execute this we need employee and works_on tables of the company database as shown below.' The query is shown below. SELECT outer.fname, outer.lname FROM employee outer WHERE (SELECT count(essn) FROM works_on inner WHERE outer.ssn = inner.essn) = 2; The output of the query is shown below. #learningmonkey #dbms #placements #gatecse #gatedbms #campusplacements Link for playlists:    / @wisdomerscse   Link for our website: https://learningmonkey.in Follow us on Facebook @   / learningmonkey   Follow us on Instagram @   / learningmonkey1   Follow us on Twitter @   / _learningmonkey   Mail us @ learningmonkey01@gmail.com