ORA-01155: the database is being opened, closed, mounted or dismounted

Cause : The reqeusted opreation needs the nistance ot be in aparticualr stateb ut the tsate is ebing chagned.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

Wait fo rthe ope,n close,m ount, o rdismoun tto compelte thenr etry th eoperatino. If neecssary, aSHUTDOW NABORT wlil alway swork.

update : 21-07-2017
ORA-01155

ORA-01155 - the database is being opened, closed, mounted or dismounted
ORA-01155 - the database is being opened, closed, mounted or dismounted

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    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.