Impact of changing data type of a field in Database table

Hi All,
I need to change the data type of a field(which is not a key field and it has no dependency with any other field) from NUMC to CHAR by maintaining the same length. Please let me know if there will be any impact in doing this. Hope the following things need to be taken care:
- Take backup of entire data in the table before doing the change
- After changing the data type, I need to set the option 'Save Data' and then 'Activate and Adjust Database' in 'Database Utility'.
- Use 'Where Used List' to check the related objects.
Please let me know if there is any impact or any thing else need to be taken care apart from the above things.
Thanks in advance.
Regards
Vidhya.

Hi,
even if the length is same there would be no impact.
just v need to adjust the database in the database utility.
check the table maintenence generator also. if not reflected there u need to delete it and create it again.
reward if useful,
teja

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