Version: Available or changed with runtime version 5.0.
Sets the data access intent of the page.
|Value||Available or changed with||Description|
|ReadOnly||runtime version 1.0||Intent to access records, but not to modify them. Read-only pages are run against a replica of the database leading to improved performance, but preventing modifications to the database records.|
|ReadWrite||runtime version 1.0||Intent to access and modify records.|
DataAccessIntent = ReadOnly|ReadWrite;
It only applies to pages of the type API. For such, The Editable property must be set to false.
For reports, API pages, and queries, the Business Central server can use read-only database replicas on Azure SQL Database and SQL Server. If replicas are enabled, use this property to reduce the load on the primary database. Using ReadOnly might also improve performance when viewing objects. ReadOnly works as a hint for the server to route the connection to a secondary (read-only) replica, if one is available. When a workload is executed against the replica, insert/delete/modify operations aren't possible. If any of these operations are executed against the replica, an exception is thrown at runtime.
From the client, the property value can be overwritten by using page 9880 Database Access Intent List page.
Using Read Scale-Out for Better Performance
Optimizing SQL Server Performance
Specifying Data Access Intent for GET requests
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