> I'd like to insert in a text field of a table of Ms Access some
> values from a list with the possibility of also choosing more
> than one.
...
> I must set up some other parameter. It is sufficient if
> were selected more voices, these are stored in the associated field
> one behind the other you separate from a comma or a point and comma.
No: this is a bad idea. You really need to expand the design of the
database, so as to have another table for voices, so that each combination
of voice and (something) is stored in a new record in that table.
Somethings(*SomethingID, FieldTwo, FieldThree, etc)
VoicesUsed(*SomethingID+, *VoiceCode+, FieldC, FieldD)
Voices(*VoiceCode, F2, F3, F4, etc)
The * means the primary key and the + means a foreign key. In the
VoicesUsed table, the PK is made up of the combination of the SomethingID
and the VoiceCode, each of which reference the main tables. Fields C and D
may give extra information about how the particular Something uses that
particular Voice.
Don't try packing more than one fact into one database field: you will run
into awful problems trying to run queries after.
Hope that helps
Tim F