Update sp auth in direct/polybase

Author: Clare Zheng (Shanghai Wicresoft Co Ltd)

articles/data-factory/connector-azure-sql-data-warehouse.md

@@ -8,7 +8,7 @@ ms.service: data-factory
 ms.subservice: data-movement
 ms.custom: synapse
 ms.topic: conceptual
-ms.date: 06/17/2024
+ms.date: 07/23/2024
 ---
 
 # Copy and transform data in Azure Synapse Analytics by using Azure Data Factory or Synapse pipelines
@@ -670,10 +670,10 @@ Azure Synapse Analytics COPY statement directly supports Azure Blob, Azure Data
 
     | Supported source data store type                             | Supported format           | Supported source authentication type                         |
     | :----------------------------------------------------------- | -------------------------- | :----------------------------------------------------------- |
-    | [Azure Blob](connector-azure-blob-storage.md)                | [Delimited text](format-delimited-text.md)             | Account key authentication, shared access signature authentication, service principal authentication, system-assigned managed identity authentication |
+    | [Azure Blob](connector-azure-blob-storage.md)                | [Delimited text](format-delimited-text.md)             | Account key authentication, shared access signature authentication, service principal authentication (using servicePrincipalKey), system-assigned managed identity authentication |
     |                                                         | [Parquet](format-parquet.md)                    | Account key authentication, shared access signature authentication |
     |                                                         | [ORC](format-orc.md)                        | Account key authentication, shared access signature authentication |
-    | [Azure Data Lake Storage Gen2](connector-azure-data-lake-storage.md) | [Delimited text](format-delimited-text.md)<br/>[Parquet](format-parquet.md)<br/>[ORC](format-orc.md) | Account key authentication, service principal authentication, shared access signature authentication, system-assigned managed identity authentication |
+    | [Azure Data Lake Storage Gen2](connector-azure-data-lake-storage.md) | [Delimited text](format-delimited-text.md)<br/>[Parquet](format-parquet.md)<br/>[ORC](format-orc.md) | Account key authentication, service principal authentication (using servicePrincipalKey), shared access signature authentication, system-assigned managed identity authentication |
 
     >[!IMPORTANT]
     >- When you use managed identity authentication for your storage linked service, learn the needed configurations for [Azure Blob](connector-azure-blob-storage.md#managed-identity) and [Azure Data Lake Storage Gen2](connector-azure-data-lake-storage.md#managed-identity) respectively.
@@ -831,7 +831,7 @@ If the requirements aren't met, the service checks the settings and automaticall
     | Supported source data store type                             | Supported source authentication type                        |
     | :----------------------------------------------------------- | :---------------------------------------------------------- |
     | [Azure Blob](connector-azure-blob-storage.md)                | Account key authentication, system-assigned managed identity authentication |
-    | [Azure Data Lake Storage Gen1](connector-azure-data-lake-store.md) | Service principal authentication                            |
+    | [Azure Data Lake Storage Gen1](connector-azure-data-lake-store.md) | Service principal authentication (using servicePrincipalKey)                          |
     | [Azure Data Lake Storage Gen2](connector-azure-data-lake-storage.md) | Account key authentication, system-assigned managed identity authentication |
 
     >[!IMPORTANT]