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docs: add partition truncation tip to ALTER TABLE reference #10377

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3 changes: 3 additions & 0 deletions docs/t-sql/statements/alter-table-transact-sql.md
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Expand Up @@ -974,6 +974,9 @@ A partitioned table with a clustered columnstore index behaves like a partitione

For `SWITCH` restriction when using replication, see [Replicate Partitioned Tables and Indexes](../../relational-databases/replication/publish/replicate-partitioned-tables-and-indexes.md).

> [!TIP]
> To truncate all rows from specific partitions without dropping or switching partitions, use [TRUNCATE TABLE](truncate-table-transact-sql.md) with the `WITH (PARTITIONS (...))` clause instead of `ALTER TABLE`.

Nonclustered columnstore indexes were built in a read-only format before [!INCLUDE [sssql16-md](../../includes/sssql16-md.md)] and for SQL Database before version V12. You must rebuild nonclustered columnstore indexes to the current format (which is updatable) before any `PARTITION` operations can be run.

**Limitations**
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