ORA-09874: TASDEF_READ: read error, unable to read tasdef@.dbf file.
Cause: Read system call returned an error when attempting to read ?/dbs/tasdef@.dbf.
Action: Check errno returned. Sgadef file may be corrupted or incompatible with oracle version.
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ORA-09874TASDEF_READ: read error, unable to read tasdef@.dbf file.