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Re: Trying to learn the right way
Posted by: Peter Brawley
Date: September 30, 2018 04:09PM

Stop coding till you've done these steps ...

1 read about how relational databases work, eg http://www.artfulsoftware.com/mysqlbook/sampler/mysqled1ch01.html

2 read about how to develop a requirements document, eg http://www.artfulsoftware.com/dbdesignbasics.html

3 follow a method like that described in #2 till you have a database that you have proved meets that requirement

A few comments specifically about your question. Shift patterns aren't written in stone, can be almost guaranteed to change over time, so you probably need ...

- an employees table employees(eid pk, firstname, lastname, ...) populated with all employee names

- a calendar table eg calendar(date) populated, say, for the next couple of years

- a generalised shifts table allowing any imaginable shift pattern over any 24 hr period eg shifts(sid pk, shiftname, timestart time, timestop time, ...)

- a bridge table in which one row assigns one time period on one day to one employee eg empshifts( shid ph, sid references shifts(sid), eid references employees(eid), ... )



Edited 1 time(s). Last edit at 09/30/2018 04:09PM by Peter Brawley.

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September 30, 2018 03:20PM
Re: Trying to learn the right way
September 30, 2018 04:09PM
September 30, 2018 06:46PM


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