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Is there a division operator in PostgreSQL?

R6
R6 asked
on
Medium Priority
1,924 Views
Last Modified: 2006-11-17
Hi experts,

I am a postgresql newbie and i just wondering what is the division operator in postgresql (7.3.2).
I would like to use in a statement that can select person who has completed all the tasks.

thank you

r6
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R6

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Commented:
hi Henka & HaydnH,

thanks for helping me!

what i after is the division operator of relational algebra that is defined on instances of relation schema.
Here is what i want to achieve:
Eg.

R

name | task          
-----+------
eric    | A
-----|-------
eric    | B
-----|-------
eric    | C


S
task
----
A
----
B

R/S

name
-----
eric



thank you

r6



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