Control file

All Controlfile or one of them are corrupted then we have to create new controlfile.
through control file statement.



STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "taj"
NORESETLOGS [archivelog/noarchivelog]
MAXLOGFILES 5
MAXLOGMEMBERS 3
MAXDATAFILES 10
MAXINSTANCES 1
MAXLOGHISTORY 113
LOGFILE
GROUP 1 'D:\ORACLE\PRODUCT\10.1.0\ORADATA\TAJ\REDO01.LOG' SIZE 10M,
GROUP 2 'D:\ORACLE\PRODUCT\10.1.0\ORADATA\TAJ\REDO02.LOG' SIZE 10M,
GROUP 3 'D:\ORACLE\PRODUCT\10.1.0\ORADATA\TAJ\REDO03.LOG' SIZE 10M
DATAFILE
'D:\ORACLE\PRODUCT\10.1.0\ORADATA\TAJ\SYSTEM01.DBF' SIZE xxx,
'D:\ORACLE\PRODUCT\10.1.0\ORADATA\TAJ\USERS01.DBF' SIZE
xxx,
.
.
.
.
CHARACTER SET [chracater_set]
================================================================
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 7271
LOGFILE
GROUP 1 'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\REDO01.LOG' SIZE 10M,
GROUP 2 'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\REDO02.LOG' SIZE 10M,
GROUP 3 'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\REDO03.LOG' SIZE 10M
-- STANDBY LOGFILE
DATAFILE
'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\SYSTEM01.DBF',
'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\UNDOTBS01.DBF',
'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\SYSAUX01.DBF',
'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\USERS01.DBF',
'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\EXAMPLE01.DBF',
'C:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\USERS02.DBF'
CHARACTER SET WE8MSWIN1252
;