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A lab query still returned a customer the source deleted. Zero-ETL can land DynamoDB and listed SaaS sources in S3 Tables. A self-managed database cannot. Firehose database CDC was removed on 24 September 2025.
A lab table landed twice: Zero-ETL and DMS on the same rows. Self-managed databases replicate only to Redshift. Firehose Direct PUT into Iceberg is capped at 5 MiB/s in three regions, and database CDC was removed on 24 September 2025.
A lab renewal only changed the connection string, and a construct was still unconverted. Babelfish speaks TDS 7.1 through 7.4 on port 1433 and does not apply to Oracle. Identifiers longer than 63 characters are rewritten.
For an on-prem MySQL estate (~1.1 TB, 340 tables), DMS full load + CDC into Aurora MySQL cut planned downtime from 6h → 18 min — LOB misconfiguration added 11 hours of rework before cutover.