OroReportBundle enables you to build custom reports for the application data in a table and a chart form and provides the ability to define report columns, grouping settings, and filter conditions using the UI or the datagrid YAML configuration.

Configure Dedicated Database Connection for Reports 

Building complex reports using the report builder can cause a heavy load on the database and impact other critical functions. To isolate reporting from missing critical functions, set up a dedicated slave database server to sync with the master server and configure the application to use the slave server to execute report SQL queries on it.

To achieve this, configure a separate DBAL connection using config/config.yml and ask the report engine to use it, as illustrated below.

                url: # slave database url or '%database_dsn%' if it is the same as master database

        connection: reports
        # the "datagrid_prefixes" option is optional and can be used to specify the list of name prefixes for datagrids
        # that are reports and should use the DBAL connection configured in the "connection" option
            - 'oro_reportcrm-'