relational database design

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i apologise in advance banality of question, have been designing basic sites business years , comfortable html, , have designed complex site havig susssed .css , coldfusion code written though dw.
i cannot make leap head round relational databases , want integrate dynamic application forms (which can code in cf).
can point me towards resource walk me though how build simple (then complex) relational database wont send me sleep or make eyes glaze over.
its brain block causing me stress, dont it...
save me

ta

didn't ask in "getting started" forum?


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