The User List

You can grant privileges to an individual user or to a list of users. You can also specify the PUBLIC keyword to grant privileges to all users.
User List

1 PUBLIC
2.1+ ,
2.1 user
2.1 'user'
Element Description Restrictions Syntax
user Login name of a user to whom you are granting privilege or granting a role Must be a valid authorization identifier Owner name
The following example grants the Insert table-level privilege on table1 to the user mary in a database that is not ANSI-compliant:
GRANT INSERT ON table1 TO mary;

In an ANSI-compliant database, if you do not include quotation marks as delimiters around user, the name of the user is stored in uppercase letters.