Examples 863–876 · Part IX: Data Engineering
| # | Example | Level |
|---|---|---|
| 863 | Transactions from application code | Intermediate |
| 864 | Parameters, never string building | Intermediate |
| 865 | Server-side cursors for large results | Intermediate |
| 866 | COPY from application code | Intermediate |
| 867 | Batch inserts and round trips | Intermediate |
| 868 | A job queue table | Intermediate |
| 869 | Single-instance jobs with advisory locks | Intermediate |
| 870 | Idempotent tasks with a ledger | Intermediate |
| 871 | Retries, backoff and dead letters | Intermediate |
| 872 | Task dependencies as data | Intermediate |
| 873 | Configuration and secrets | Intermediate |
| 874 | Structured logging of pipeline runs | Intermediate |
| 875 | Partial failure and cleanup | Advanced |
| 876 | Where orchestration logic belongs | Advanced |
The solutions and explanations are in the book.