functional dependeny algorithm (repost)

hi,

i wrote a method to check functional dependency between two columns of a given table...for example i found these dependences :

C->A (A depends on C)

B->A

A->B

B->C

C->B

now from above relations i need to deduce the final relations :

C→A

BC→A

which reflect the exact dependencies of the table.

can you help me find an algorithm to deduce second rel from relations above?

thanks.

[487 byte] By [Servant@AKa] at [2007-10-2 7:27:25]