>>When creating a unique index and FK constraint on two columns, does the order of columns matter?
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>>For example, I want to have unique index on SITE_NO (Int) and CATEGORY (Char(20) and a FK Constraint on these two fields. Would [SITE_NO],[CATEGORY] create different "results" from [CATEGORY],[SITE_NO]?
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>>TIA
>
>Those 2 different indexes. While it doesn't matter for FK, it may matter for queries. Also logically [SITE_NO],[CATEGORY] makes more sense
Thank you. I am most concerned about FK. And I chose the [SITE_NO],[CATEGORY]. But now my ALTER TABLE... CREATE CONSTRAINT ... fails. I will have to either resolve it myself or start a new thread.
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