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→Various Kinds of Subreports
==Various Kinds of Subreports==
There are three main kinds relationships in IMSMA on which subreports can be generated from IMSMA data. These are:
*Location relationship
*Link relationship
*Direct relationship
===Location relationship subreports===
Because each of the main items in {{IMSMANG}},
*Accident
*Activity
*Assistance
*Education
*Land
*QM
*Victim
must be reconciled to a Location during the data entry phase, each of these objects has a relationship with Location and can thus be a subreport on a Location main report. Since all accidents, land, activities, educations, QMs, assistances, and victims are associated with a single location each record knows what location it is related to based on the '''''location guid''''' field. When creating a report where the main report is a Location and the subreport is one of the associated objects the Location's guid is passed to the subreport in a parameter and the subreport can use a special ImsmaQuery language syntax to limit the subreport data to those associated with the main report's location:
location.guid = "$P{parametername}"
This section discusses relationships between Items in IMSMA and also provides instructions on how to create a specific report/sub-reports. The reports discussed so far in this training module have been based on a single data source. In this part of the training module, you will learn to create more complex reports that reference multiple data sources. Some items are dependent on the existence of another item. This type of relationship is referred to as a direct relationship. For example, an accident, land, activity, education, QM, or victim has a direct relationship to the location to which it is associated. The accident, land, activity, education, QM, or victim cannot exist unless it is associated with a location. This direct relationship is enforced in IMSMA via the reconciliation process.</p>
