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ORA-12545 Error and Chains - Troubleshooting

Jay CamposApr 24 2026

Hello everyone,

I am reaching out as I am getting an ORA-12545 error, on occasion, when I run a job that contains a chain.

The chain contains procedures that reference a DB link. To my understanding, it appears that might be the issue - connectivity to the db link that, at points, is lost but would much appreciate any guidance/direction that could be taken.

On a unrelated note, I wanted to ask what's everyone's experience has been like with chains and whether that is a good/most efficient tool to utilize for my use case:

  1. Load data into staging.
  2. Only once successfully confirmed, merge into the main table.

Seems to be working well, but of course having the problem above.

Thanks,

Jay

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Added on Apr 24 2026
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