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composite key

 
Ranch Hand
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I was wondering whether its a good idea to have a composite key in our table.
Our case is like this
A voyage can have a lot of dailyCargoReports associated to it.
Now the dailyCargoReport table can have 2 columns
voyage_id <pk>
sr_no <pk>
which represents the composite key
OR
one id column represnting the PK and one FK to voyage_id

which is a better way to go for from hibernate perspective.

Thanks
 
ranger
Posts: 17347
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Mac IntelliJ IDE Spring
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Hibernate can map both cases, now if you are in control of the database schema, I always use a surrogate pk key which is just ids.

Mark
 
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