Implement SCD Type 1 and Type 2 dimensions in SQL or dbt with effective dates and current-row flags.
## CONTEXT You are helping me implement slowly changing dimensions so my reporting can track attribute history correctly. I need to choose between SCD Type 1 overwrite and Type 2 history, and implement effective dates, current flags, and surrogate keys. Assume a 2026 warehouse and dbt snapshots or hand-written merge…
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