Merge pull request #183717 from jovanpop-msft/patch-229

Update resources-self-help-sql-on-demand.md

Author: PRMerger17

articles/synapse-analytics/sql/resources-self-help-sql-on-demand.md

@@ -726,29 +726,6 @@ See the [Synapse Studio section](#synapse-studio).
 
 ## Security
 
-Make sure that a user has permissions to access databases, and permissions to access [data lake](develop-storage-files-storage-access-control.md?tabs=service-principal) or [Cosmos DB storage](query-cosmos-db-analytical-store.md#prerequisites). 
-
-### Cannot read, list or access files on data lake storage
-
-If you are using Azure AD login without explicit credential, make sure that your Azure AD identity can access the files on storage. Your Azure AD identity need to have Blob Data Reader or list/read ACL permissions to access the files - see [Query fails because file cannot be opened](#query-fails-because-file-cannot-be-opened).
-
-If you are accessing storage using [credentials](develop-storage-files-storage-access-control.md#credentials), make sure that your [Managed identity](develop-storage-files-storage-access-control.md?tabs=managed-identity) or [SPN](develop-storage-files-storage-access-control.md?tabs=service-principal) has Data Reader/Contributor role, or ALC permissions. If you have used [SAS token](develop-storage-files-storage-access-control.md?tabs=shared-access-signature) make sure that it has `rl` permission and that it didn't expired. 
-If you are using SQL login and the `OPENROWSET` function [without data source](develop-storage-files-overview.md#query-files-using-openrowset), make sure that you have a server-level credential that matches the storage URI and has permission to access the storage.
-
-### Cannot access Cosmos DB account
-
-Make sure that your Cosmos DB container has analytical storage. Make sure that you correctly specified account, database, and container name. You must use read-only cosmos DB credential to access your analytical storage, so make sure that it did not expire.
-
-If you are getting the [Resolving Cosmos DB path has failed](#resolving-cosmosdb-path-has-failed) error, make sure that you configured firewall.
-
-### Cannot access Lakehouse/Spark database
-
-If a user cannot access a lake house or Spark database, it might not have permissions to access and read the database. A user with `CONTROL SERVER` permission should have full access to all databases. As a restricted permission, you might try to use [CONNECT ANY DATABASE and SELECT ALL USER SECURABLES](https://techcommunity.microsoft.com/t5/azure-synapse-analytics-blog/synapse-serverless-shared-database-and-tables-access-for-non/ba-p/2645947).
-
-### SQL user cannot access Dataverse tables
-
-Dataverse tables are accessing storage using the callers Azure AD identity. SQL user with high permissions might try to select data from a table, but the table would not be able to access Dataverse data. This scenario is not supported.
-
 ### Azure AD service principal login failures when SPI is creating a role assignment
 If you want to create role assignment for Service Principal Identifier/Azure AD app using another SPI, or have already created one and it fails to login, you're probably receiving following error:
 ```
@@ -820,29 +797,34 @@ You don't need to use separate databases to isolate data for different tenants.
 
 ## Querying Azure data
 
-Review the following articles to learn more about how to use serverless SQL pool to query data.
+Serverless SQL pools enable you to query data in Azure storage or Azure Cosmos DB using [external tables and the OPENROWSET function](develop-storage-files-overview.md).  
+Make sure that you have proper [permission setup](develop-storage-files-overview.md#permissions) on your storage.
 
 ### Querying CSV data
 
-Learn here how to [query single CSV file](query-single-csv-file.md) or [folders and multiple CSV files](query-folders-multiple-csv-files.md)
-
-- [Query specific files](query-specific-files.md)
+Learn here how to [query single CSV file](query-single-csv-file.md) or [folders and multiple CSV files](query-folders-multiple-csv-files.md). You can [query partitioned files](query-specific-files.md).
 
 ### Querying Parquet data 
 
-Learn here how to [query Parquet files](query-parquet-files.md) with [nested types](query-parquet-nested-types.md).
+Learn here how to [query Parquet files](query-parquet-files.md) with [nested types](query-parquet-nested-types.md). You can [query partitioned files](query-specific-files.md).
+
+### Querying Delta Lake 
+
+Learn here how to [query Delta Lake files](query-delta-lake-format.md) with [nested types](query-parquet-nested-types.md). 
 
-### Querying Cosmos DB data 
+### Querying Cosmos DB data
 
 Learn here how to [query Cosmos DB analytical store](query-cosmos-db-analytical-store.md). You can use [online generator](https://htmlpreview.github.io/?https://github.com/Azure-Samples/Synapse/blob/main/SQL/tools/cosmosdb/generate-openrowset.html) to generate the `WITH` clause based on a sample Cosmos Db document.
+Yu can [create views](create-use-views.md#cosmosdb-view)
 
 ### Querying JSON data 
 
-Learn here how to [query JSON files](query-json-files.md).
+Learn here how to [query JSON files](query-json-files.md). You can [query partitioned files](query-specific-files.md).
 
 ### Create views, tables and other database objects
 
 Learn here how to create and use [views](create-use-views.md), [external tables](create-use-external-tables.md), or setup [row-level security](https://techcommunity.microsoft.com/t5/azure-synapse-analytics-blog/how-to-implement-row-level-security-in-serverless-sql-pools/ba-p/2354759).
+If you have [partitioned files](query-specific-files.md), make sure that you are using [partitioned views](create-use-views.md#partitioned-views).
 
 ### Copy and transform data (CETAS)