RAD Studio (Common)
ContentsIndex
PreviousUpNext
Relation

Use this dialog box to define a relationship between tables in a dataset.

Item 
Description 
Name  
Specify the name of the relation.  
Parent table  
Specify the parent table in the relation.  
Child table  
Specify the child table in the relation.  
Key Columns  
Select one or more columns to act as the primary key in the parent table.  
Foreign Key Columns  
Select one or more columns to act as the foreign key in the child table. Typically, these must correspond to the columns you chose as your primary key, if not in name, then by data type and value.  
Update rule  
Select the Update rule to use when updating records. Applies to master-detail relationships and how detail records are updated when a master record is updated.  
Delete rule  
Select the Delete rule to use when deleting records. Applies to master-detail relationships and how detail records are deleted when a master record is deleted.  
Accept/Reject rule  
Select the Accept/Reject rule to use when an insert occurs in a master-detail relationship.  
Copyright(C) 2008 CodeGear(TM). All Rights Reserved.
What do you think about this topic? Send feedback!