I am trying to create a SCD (slowly changing dimension) type 2 table in BigQuery without using any DML's
test schema :
id | date | name | valid_from | valid_to | flag
I need to capture the name changes for a specific id.
Thanks,
scd2 table implementation in google bigquery
1.9k Views Asked by dineshachanta At
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You can create artificially date partitioned tables to achieve this. This way, each date's data is unique and can be accessed by
`select distinct column from `dataset.table$yyyymmdd;`or for all the history, just doselect distinct column from dataset.table;. Also, you can always overwrite/append to a given date's partition without harming others.