Doubt on database

Question

http://gateoverflow.in/743/gate2001-2-25

 

Can someone help me to understand this one.?

It tells something about one table that geq which gives the condition and it also says about the foreign key so

there must be two tables as per the question.

 

It will be helpful if someone could help me out : )

Comments

create table geq
(	
    ib	integer	not null,
    ub	integer	not null,
    primary key ib,	
    foreign key (ub) references geq on delete cascade
);

It is mentioned that ub is referencing geq. 

https://gateoverflow.in/1399/gate2005-76 check this out

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consider comments of this question, it will help to you https://gateoverflow.in/227600/made-easy

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Thanks a lot . I got it : )