Another thing that should be stressed is the fact that PK works better, for various reasons if it's either identity or other simple one column-integer field, rather than 'natural PK'--which...

Index improves query if the query

uses it; however, index, by the fact

that insert/update/delete needs to also

create/update/delete the index will slow

down the process; therefore, there's

no big suprise to why an indexless...

I think PK are absolutely required, as

most people agree. Here is what I usually

do: If an unique, typed-integer column can

be 'naturally' found, then I will use it as

the...