How to use a query as a report data source in Business Central AL programming.
In Microsoft Dynamics 365 Business Central, you can specify a query as the dataitem source of a report by following these steps:
Create a query object: Queries in Business Central enable you to retrieve records from one or more tables or data sources and combine the data into rows and columns in a single dataset. There are two types of query objects: normal and API. A normal query retrieves records from business data tables in the Business Central database, while an API query is used to generate web service endpoints.
Define the report dataset: To use a query as the data source for a report, you need to create a global variable that points to the query object. You can then use this variable in the report dataset definition to specify the fields and data items you want to include in the report.
Implement the query in the report dataset: When defining the report dataset, you can specify the columns from the query object that you want to include in the report. You can also perform calculations on the data retrieved by the query, such as computing sums and averages.
Handle the query data: Since the query resulting dataset cannot be used directly by other objects such as pages and reports, you must create a Query Data Type instance and apply methods for handling the data from the query object. This involves calling the Query.Open Method to read the dataset, setting filters, and using the data in your report.
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0:00 (Introduction);
2:37 (Create a report that uses a Global query variable as a datasource);
10:10 (Conclusion);