Re: How to find persons who like red fruits or crunchy veggies?
Date: 15 Nov 2006 11:48:13 -0800
In your language, can you query:
How many fruit colors are there? Which fruit color(s) is/are the most liked? How many veggies are there that nobody likes?
> The following dbd query finds persons who like either red fruits or
> crunchy veggies:
> (and (select person instance *)
> (select * like (or (and (select fruit instance *)
> (select * color red))
> (and (select veggie instance *)
> (select * texture crunchy))
> What RMDB schema and SQL query will find the equivalent? Should I start
> with T_Person, T_Fruit, T_Veggie, T_PLikeF, T_PLikeV ?
Received on Wed Nov 15 2006 - 20:48:13 CET