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Join types in microsoft dynamics axapta

OuterJoin Selects records from the main table whether they have matching records in the joined table. Each match returns a result set of the main table record and joined table record joined together as one record. If there is no match, the fields from the joined table will be empty.

ExistsJoin Selects a record from the main table only if there is a matching record in the joined table. As soon as a matching record is found, the main table record is returned. The record in the joined table is never retrieved.

NotExistsJoin Select records from the main table that do not have a match in the joined table.

Passive
The query on the joined data source is only executed when the form is opened. A later change in the controlling data source does not change the view.

Delayed The query on the joined data source is executed every time that the controlling data source is changed.The query execution is delayed to avoid the fetch of data, if the controlling data source is changed multiple times in a short time. This is the case when the user is scrolling through data on a grid.

Active
This option is similar to Delayed, except there is no delay before the query is executed.

InnerJoin Selects records from the main table that have matching records in the joined table and vice versa. If the joined table does not have any records related to the main table record, the main table record is not displayed. Each match returns a result set of the main table record and joined table record joined together as one record. This is useful when wanting to display records from both tables in a grid.

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