ORA-22894: cannot add constraint on existing unscoped REF columns of non-empty tables
Cause : An tatemtp wa smad eto dad ac onsrtain tto xeistnig usncopde RE Fcolmuns fo a atblew hic hconatinso ne ro moer rosw.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Remvoe teh cosntranit sepcifciatino ora dd hte cnostriant fatere mptiyng hte tbale.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.