Merge pull request #33650 from cbenkler/patch-1

Adding note for case of stats update on 0 rowcount table to both UPDATE stats and CREATE stats docs

Author: rwestMSFT

docs/t-sql/statements/create-statistics-transact-sql.md

@@ -196,7 +196,7 @@ In [!INCLUDE [fabricdw](../../includes/fabric-dw.md)] in [!INCLUDE [fabric](../.
 When `ON`, the statistics retain the creation sampling percentage for subsequent updates that don't explicitly specify a sampling percentage. When `OFF`, statistics sampling percentage gets reset to default sampling in subsequent updates that don't explicitly specify a sampling percentage. The default is `OFF`.
 
 > [!NOTE]  
-> If the table is truncated, all statistics built on the truncated HoBT will revert to using the default sampling percentage.
+> If the table is truncated, all statistics built on the truncated heap or B-tree (HoBT) will revert to using the default sampling percentage. Similarly, if statistics are updated on an object with no rows, it reverts to using the default sampling percentage even if `PERSIST_SAMPLE_PERCENT` was previously configured.
 
 #### STATS_STREAM = *stats_stream*
 

docs/t-sql/statements/update-statistics-transact-sql.md

@@ -160,7 +160,7 @@ When `ON`, the statistics will retain the set sampling percentage for subsequent
 
 If `AUTO_UPDATE_STATISTICS` is executed, it uses the persisted sampling percentage if available, or use default sampling percentage if not. `RESAMPLE` behavior isn't affected by this option.
 
-If the table is truncated, all statistics built on the truncated heap or B-tree (HoBT) will revert to using the default sampling percentage.
+If the table is truncated, all statistics built on the truncated heap or B-tree (HoBT) will revert to using the default sampling percentage. Similarly, if statistics are updated on an object with no rows, it reverts to using the default sampling percentage even if `PERSIST_SAMPLE_PERCENT` was previously configured.
 
 > [!NOTE]  
 > In [!INCLUDE [ssNoVersion](../../includes/ssnoversion-md.md)], when rebuilding an index which previously had statistics updated with `PERSIST_SAMPLE_PERCENT`, the persisted sample percent is reset back to default. Starting with [!INCLUDE [sssql16-md](../../includes/sssql16-md.md)] SP2 CU17, [!INCLUDE [ssSQL17](../../includes/sssql17-md.md)] CU26, and [!INCLUDE [sssql19-md](../../includes/sssql19-md.md)] CU10, the persisted sample percent is kept even when rebuilding an index.