Can we join tables even if they don't have common columns ? | Advanced Sql Concepts | Ashutosh Kumar

Sql one of the most important language asked in most of the analytics interviews,in this series i have discussed some advanced level sql concepts that are frequently asked in data analyst,business analyst interviews. In this video i have covered cross join and self join concepts in sql.
👉 Code
drop table if exists department;
CREATE TABLE department(Name VARCHAR(200));
INSERT INTO department(Name)
VALUES('Engineering'),
('Marketing'),
('Legal'),
('Finance'),
('HR');
drop table if exists shift;
CREATE TABLE shift(Id VARCHAR(200));
INSERT INTO shift(Name)
VALUES('Day'),
('AfterNoon'),
('Night');
drop table if exists country;
CREATE TABLE country(Name VARCHAR(200));
INSERT INTO country(Name)
VALUES('India'),
('US');
mention the shift timings
Day 7:00 a.m. to 3:00 p.m.
Afternoon 3:00 p.m. to 11:00 p.m.
Night 11:00 p.m to 7:00 a.m
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[@AshutoshKumaryt]

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[@kushagradutta2745]

Hey Ashutosh.
This video was insightful. Thank you for your valuable content, it really helps a lot as I'm learning sql.

[@Souviri]

Thank you so much, spent quite sometime to figure out how to add a case statement in cross join, and then came across your video. Its very helpful..

[@AshutoshKumaryt]

Glad it helped!

[@AyushSrivastava-qp1mw]

made my day

[@AshutoshKumaryt]

Thanks a lot

[@surajshitole1785]

What about if datatype is different for all these three joining columns
. Without using casting / converting

[@AshutoshKumaryt]

Try it Suraj let me also know what you got

[@prudhvirajkilli3833]

could you please suggest when there are no direct relations, still if i want to identify those, can i get such relations. Please suggest me if you have any idea

[@AshutoshKumaryt]

Please elaborate

[@prudhvirajkilli3833]

@@AshutoshKumaryt I explored lot , no luck