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HNAKAGAW
Partner - Contributor III
Partner - Contributor III

[Oracle Target] When in Unlimited LOB mode, replication from SQL Database's NVARCHAR(MAX) type to Oracle's CLOB type fails with ORA-24806

Hello support team

 

[Environment]

Source : Azure SQL Database

Target : Oracle 19c

 

[Situation]

- When in Unlimited LOB mode, replication from SQL Database's NVARCHAR(MAX) type to Oracle's CLOB type fails with ORA-24806.

- In both Full Load and Change Processing, when ORA-24806 occur , retries continue repeatedly.

- In Limited LOB mode, ORA-24806 does not occur in either FullLoad , Batch optimized apply , Transactional Apply.

- Changing the Oracle data type to NCLOB from CLOB prevents ORA-24806.

- Changing the Output Type of the column to CLOB in Table Settings > Transform does not prevent ORA-24806.

 

[Question]

Is there a workaround to prevent ORA-24806 from occurring while keeping Oracle data type CLOB?

 

Best Regards

Nakagawa

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