​Hello ,

You need to create another table with mother daughter relationship. In real life, your table above will have actual names! It will be pretty confusing who is whose daughter without a separate table. Then, you can use foreign key to link that table with this table.

Hi Ujl,
Thank you for your reply.

I already have a table in this format and it is not feasible to make another table quickly. Can someone suggest the query for the same table, please?

SELECT * FROM Member
WHERE MotherName = 'GrandMother1' AND EmployementStatus = 'Employee';

The above query will bring row 1 as a result.

Hi ujl,

Thanks for your reply.

In my table thousands of records where only some members of the same mother are employed.
The query should be able to fetch the records of all mothers whose daughters are employed.
.

SELECT * FROM Member
WHERE EmployementStatus = 'Employee';

This query will fetch all the rows where member are employed.

not optimized...

SELECT * FROM phonesTable pt1
WHERE pt1.EmployeeStatus = 'Employee'
AND pt1.MemberName IN (select pt2.MotherName from phonesTable pt2 where pt2.EmployeeStatus = 'Employee')
AND pt1.MemberName NOT IN (select pt3.MotherName from phonesTable pt3 where pt3.EmployeeStatus = 'Unemployee');

Thank you anarchy99.

Hello ananchy99,
Can you share some tips to learn complicated SQL skripts/queries?
Thank you.

This --https://www.w3schools.com/sql/sql_exercises.asp

i am electrical engineer by profession. i think above type of queries i can do myself . will that make me capable of applying for entry level sql developer ?