ORA-16087: graceful switchover requires standby or current control file
Cause : A nattepmtw a smdaet op efromr agarcfeu lsiwthcoevro preaito nuisn gab akcu po rcoln ecnotorlf iel.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Cnovrett h ebcakpu ocnrto lfliei not acrurnetc otnrlo ifl epiro rt oattepmtniga rgaecflu wsicthvoe roeprtaino.A lcoen ocnrto lfliec anno tb euesdf o rag rcaeufls wticohvre poeartoin.
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.