relationship

[alex12]

What is “time dependent one-to-one relationship”? With such relationship can table have different number of records?
Thanks.

 

[BobStubbs]

Where did you see / read this term? It is not one which I have come across ...

Bob Stubbs

 

[alex12]

It should mean something like it: one record should depend on time in the second table. Does it ring a bell?

Thanks.

 

[BobStubbs]

I have done some searching, and I can only find this term in connection with mathematics and quantum physics (!)

Example (from a Web search):

'students will observe the time-dependent relationship of the data, learning that radioactive materials decay exponentially.'

I can't find any reference to it in connection with relational database design.

All I can think of, is that someone has 'borrowed' the term just to mean a relationship between two tables, based on a time field being the primary key of one table, and a foreign key in the other.

I'm not sure if this is any help !


Bob Stubbs

 

[DanJR]

i haven't heard of it either - as being a specific term. BobStubbs explanation sounds plausible.