TechBlog

Table, Form, Report, Dataport, XMLport, Codeunit, Menusuite, Page
Table, Form, Report, Dataport, Codeunit, Page
Table, Form, Report, Dataport, XMLport, Codeunit, Menusuite
Table, Form, Report, Dataport, Codeunit

Navision Attain 3.70
Navision 4.0
Dynamics NAV 5.0
Dynamics NAV 2009

yes
no

Data and Keys
Names, Fields, Keys and Forms
Properties, Fields, Keys and Data
Properties, Fields, Triggers and Keys

128 bytes
252 bytes
256 bytes
512 bytes

1
10
20
25

You must first delete the data from the field in all records & companies, before changing the field name.
You must first remove all references to the field in other objects (tables, forms etc.), before changing the field name.
You can never change a field name
You can always change a field name

Always – if you make the field larger
You can always change the field size
You can never change the field size

You can always change a fields type
You can never change a fields type
You must first empty the data in all records, before changing a fields type
You must first empty the data in the field for all records, before changing a fields type

Yes
No

No – they were first known from 4.0 SP1
No – they were first introduced in 5.0
Yes

Allow keys to have a group of fields containing more than one field
Define the group of forms, that uses the key
Define users, that are allowed to use the key
To activate and deactivate seldom used keys