JohnnyAlpha
Programmer
I'm sure that this is an easy one for most of you so... Could you please explain (in simple English) the difference between a Primary Key and an Index and how these are used ?
THANKS !!
John
THANKS !!
John
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Primary Key and Index... What is the difference ?
- Thread starter JohnnyAlpha
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a primary key is a logical thing
an index is a physical thing
a primary key is used so that foreign keys have something to refer to
an index is used to improve query performance
how'm i doing so far?
rudy
an index is a physical thing
a primary key is used so that foreign keys have something to refer to
an index is used to improve query performance
how'm i doing so far?
rudy
- Thread starter
- #3
JohnnyAlpha
Programmer
Rest easy Rudy... You are doing just fine !!! 
Thanks for the advice.
John
Thanks for the advice.
John
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