Max Rows to Display For queries that display their results on the screen, the maximum number of rows to return. For certain databases, not setting a maximum result limit can negatively impact performance. This is because some databases require all rows to be retrieved for a query before the next query can be executed. Setting a limit on the maximum number of rows that will be retrieved can greatly improve performance for these types of databases. The Max Rows to Display setting only affects results that display on the screen. Operations like Export and Backup are not affected by this setting. To set a global maximum results limit for all operations, specify a value in the "Max Rows to Retrieve Per Query" field on the "Query Results" tab of the preferences window.