ORA-31004: Length string of the BLOB in

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ORA-31004: Length string of the BLOB in XDB$H_INDEX is below the minimum
string
Cause: In the XDB$H_INDEX table,the CHILDREN column, a BLOB, must have
a certain minimum length without being chained. The calculated length of the
LOB was less than the stated minimum.
Action: Set the value of theinit.ora parameter db_block_size to at least 2K. For
XDB to run at its fastest, set db_block_size to 8K.