database - Handling unique INSERTs(strings) in SQL that are used in the system like types -


i have table activities technicians machines. columns are:

 1. id  2. name_act

what if user writes , saves activity change of oil rt54, , next month forgot activity in system , start doing again, time writes change of oil rt54 2 spaces after change.

how should handle this?

this "event form" uses these activities

enter image description here

the user clicks checkedlistbox , chooses activity did in date picked.

this form allows user add new activities

enter image description here

the user writes name of activity , saves.

the id of activity field in table increments user add new activities.

what can do?


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