instant jchem security

i am using instant jchem database in multi user enviornmet .....now i want to provide security to it so that client users can access only limited data  and i also want to make an admin2 so that admin2 can access d complete information in multi user enviornment

Information on setting up security in IJC can be found here:
http://www.chemaxon.com/instantjchem/ijc_latest/docs/user/help/htmlfiles/security/about_security.html />See also the links at the bottom of that page.

Its not really clear what you mean by:

client users can access only limited data

If you are meaning only see certain rows then this mignt be of interest:
http://www.chemaxon.com/instantjchem/ijc_latest/docs/user/help/htmlfiles/security/row_level_security.html

Tim

my question is .. suppose i have 4 columns and i am using multi user enviornment . now i want to show  records  to all users except one column ....and want to give full access  to one more admin with new username and password

Hiding items from certain groups of users is possible. A giude to doing this can be found here:
http://www.chemaxon.com/instantjchem/ijc_latest/docs/admin/tips/role_filtering/index.html

Tim