ERROR IN DATABSE WHILE FETCHING TABLE NAME "SINVA"

Question

Table does not exist._
_*[orcale][ODBC][ORA]ORA-0115:IO error reading block from file 7(block#28809)*_
ORA-01110: data file7:_
General SQL error._
*'C:\ORACLEXE\APP\ORACLE\PRODUCT\10.2.0\SERVER\DATABASE\ARAFIVE'*
ORA-27: unable to queue I/O_
ORA-27070: async read/write faied_
OSD-04006: ReadFile() failure, unable to read from file_
O/S-ERROR:(OS 23) Data error(cyclic redundancy check)
The above error I'm facing while fetching the data from oracle DB. I've installed oracle express edition and when i try to fetch any kind of reports from my DB this error is arising. i tried to take backup the m dump (.dmp ) but i unable to access that too and also through TOAD i can modify the data in the DB but even the schema in the table is not available also i'm getting these above error in toad also.
can any one please help me to overcome this ?

Answer 1

Post last few lines of your alert.log and check whether OS user have full access privileges to those volumes/disks (C:\ORACLEXE\APP\ORACLE\PRODUCT\10.2.0\SERVER\DATABASE\ARAFIVE) or not.