Dear Sirs,

Problem : Database is not opened.

After entering the 'startup' command the following errors are showing.

ORA-01157: cannot identify data file 6 - file not found
ORA-01110: data file6: '/home/decsrv1/usr4/people/oracle/u01/app/oracle/product/8.0.4/dbs/datafile_mtech99'

The data file 'datafile_mtech99' is missing. Please, suggest me how to open the databse.

Thanks,

Atanu Basu.