Directory, what is a sub-report? Second, by using the subformation combination unrelated report three, the sub-reports of the unlink cannot be linked, display different views of the same data in a single report, one-to-many links --------- ----------------------- First, what is a sub-report? The sub-report is a report in the report. The process of creating sub-reports is similar to the process of creating a regular report. Sub-reports have most of the characteristics of the report, including its own record selection conditions. The only difference between the sub-report and the main report is that the sub-report: is inserted into the main report as an object; it can't stand independently (but you can save the sub-report as the main report). The entire sub-report will be printed in this section in any section of the report. Another sub-report cannot be included. Don't include header or footer. There are four situations to usually use sub-reports: 1, combine unrelated reports into a single report. See Reports that are not related to the use of sub-reports. 2. Coordinating the data that cannot be linked. Please refer to the data used sub-reports that cannot be linked. 3. Display different views of the same data in a single report. See Different views of the same data in a single report. 4. Perform a pair of more thanks from the fields that have no index on the check field. For more information, see a pair of links. Note: Use the sub-reports as needed without using a regular field sub-report to increase the performance of the reports that contain sub-reports. -------------------------------- Second, the report by using the sub-reports is sometimes hopeful The unrelated report is combined into a single report. For example, it may be desirable to create a single report to represent: According to the sales representative grouping. Sales according to the project group. Although two reports handle sales data, there is no real linear relationship between the two reports. You can use sub-reports to combine unrelated reports into a single report like this. Although the report can be based on the same data set, it is not necessary. They can be based on a completely different dataset. Each of these reports is independent; the data in any report does not link data in another report in any way. This is the most easily used subscription option. For all details, see Combining Two or more unrelated reports. ---------------------------------- Third, the data using the unable to link, as long as the following conditions are met, You can link tables in the report: The link field is a database field. The link field contains similar data. The length of the link field is the same.
