Merge branch '20220222-add-documentation-for-database-backups' of https://github.com/SudhirRaparla/sql-docs-pr-sraparla-edits into 20220222-add-documentation-for-database-backups

Author: SudhirRaparla

docs/relational-databases/system-dynamic-management-views/sys-dm-database-backups-azure-sql-database.md

@@ -34,16 +34,25 @@ monikerRange: "= azuresqldb-current"
 |Column Name|Data Type|Description|  
 |-----------------|---------------|-----------------|  
 |backup_file_id|**uniqueidentifier**|ID of the generated backup file. Not null|
-|database_guid|**sql_variant**|Logical Database ID of the [!INCLUDE[ssSDSfull](../../includes/sssdsfull-md.md)] on which the operation is performed. Not Null.|
-|physical_database_name|**sql_variant**|Name of the Physical [!INCLUDE[ssSDSfull](../../includes/sssdsfull-md.md)] on which the operation is performed.|
-|server_name|**sql_variant**|Name of the Physical server on which the [!INCLUDE[ssSDSfull](../../includes/sssdsfull-md.md)] which is being backed up is present. Not Null.|
-|backup_start_date|**datetime**|Timestamp when the Backup operation started|
-|backup_finish_date|**datetime**|Timestamp when the Backup operation finished|
-|backup_type|**nvarchar(60)**|Type of Backup<br /><br /> D = Full Database Backup<br />I = Incremental Backup<br />L = Log Backup|
-|in_retention|**tinyint**|Backup Retention Status. Tells whether backup is within retention period<br /><br />1 = In Retention <br />0 = Out of Retention|
+|database_guid|**uniqueidentifier**|Logical Database ID of the [!INCLUDE[ssSDSfull](../../includes/sssdsfull-md.md)] on which the operation is performed. Not Null.|
+|physical_database_name|**nvarchar(128)**|Name of the Physical [!INCLUDE[ssSDSfull](../../includes/sssdsfull-md.md)] on which the operation is performed.Not Null|
+|server_name|**nvarchar(128)**|Name of the Physical server on which the [!INCLUDE[ssSDSfull](../../includes/sssdsfull-md.md)] which is being backed up is present. Not Null.|
+|backup_start_date|**datetime2(7)**|Timestamp when the Backup operation started. Not Null.|
+|backup_finish_date|**datetime2(7)**|Timestamp when the Backup operation finished. Not Null.|
+|backup_type|**char(1)**|Type of Backup<br /><br /> D = Full Database Backup<br />I = Incremental or Differential Backup<br />L = Log Backup. Not Null.|
+|in_retention|**bit**|Backup Retention Status. Tells whether backup is within retention period<br /><br />1 = In Retention <br />0 = Out of Retention. Null.|
 
 ## Permissions  
  Requires VIEW DATABASE STATE permission on the database.
 
 ## Remarks
-Backups retained and shown in Backup history view depend on configured backup retention. Some backups older than the retention period, in_retention=0, are also shown in dm_database_backups view. They're needed to do point in restore within the configured retention. 
+Backups retained and shown in Backup history view depend on configured backup retention. Some backups older than the retention period, in_retention=0, are also shown in dm_database_backups view. They're needed to do point in restore within the configured retention. 
+
+## Example
+ Show list of all active backups for the current database ordered by backup finish date.
+  
+```  
+SELECT * 
+FROM sys.dm_database_backups     
+ORDER BY backup_finish_date DESC;  
+```