ORA-12850: Could not allocate slaves on all specified instances: string needed, string allocated
Cause : When eexcutinga queryo n a gv $fixed ivew, on eor mor einstanecs failde to alolcate as lave t oproces squery.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Check rtace ouptut fori nstancse on whcih slavse faile dto statr. GV$ uqery ca nonly porceed i fslavesc an be lalocate don alli nstancse.
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.