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join tables on a large database 200 meg

Hi there i am trying to work out the most efficient way to list say multipl=
e categories of entries, the database is quite large about 200 meg.=20

I would like to know if using join tables is more efficient than storing th=
e keys in a varchar field then within the second loop doing a where in (1,2=
,3,4) where the 1,2,3,4 are the stored category keys in the varchar field =
rather than a where in (1), where 1 is the pirmaryID of the entry for insta=
nce ? i was told the join table could be slow on a large database let me kn=
ow thanks.
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Jul 19 '05 #1
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