How to fix the Oracle error OCI-31004: Length string of the BLOB in XDB$H_INDEX is below the minimum string?

In this post, you’ll learn more about the Oracle ErrorOCI-31004: Length string of the BLOB in XDB$H_INDEX is below the minimum string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

OCI-31004: Length string of the BLOB in XDB$H_INDEX is below the minimum string

Reason for the Error OCI-31004: Length string of the BLOB in XDB$H_INDEX is below the minimum string

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.

How to fix the Error OCI-31004: Length string of the BLOB in XDB$H_INDEX is below the minimum string ?

You can fix this error in Oracle by following the below steps

Set the value of the init.ora parameter db_block_size to at least 2K. For XDB to run at its fastest, set db_block_size to 8K.