Cause: The value of the DB_BLOCK_SIZE initialization parameter used to start this database does not match the value used when that database was created. Potential reasons for this mismatch are:
mounting the wrong database
using the wrong initialization parameter file
the value of the DB_BLOCK_SIZE parameter was changed
Action: For one of the above causes, either:
mount the correct database
use the correct initialization parameter file
correct the value of the DB_BLOCK_SIZE parameter
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