Difference between revisions of "QREL"
From SDU
(QREL) |
m |
||
| Line 1: | Line 1: | ||
| − | + | __NOTOC__ | |
| + | [[Category:r6]] | ||
| + | [[Category:r11]] | ||
| + | {{Global Header}} | ||
| + | {{Global Announcement}} | ||
| + | == Overview == | ||
| + | A QREL attribute is a "Query RELation". A QREL attribute is also a list of objects defined by a where clause. | ||
| − | QREL Syntax | + | '''QREL Syntax''' |
children QREL chg DYNAMIC { | children QREL chg DYNAMIC { | ||
WHERE "parent = ? " ; | WHERE "parent = ? " ; | ||
Revision as of 13:09, 29 November 2008
To make corrections or additions to this article, select the edit tab above.
To discuss or ask questions about this article, select the discussion tab above.
To discuss or ask questions about this article, select the discussion tab above.
Overview
A QREL attribute is a "Query RELation". A QREL attribute is also a list of objects defined by a where clause.
QREL Syntax children QREL chg DYNAMIC { WHERE "parent = ? " ; PARAM_NAMES { id } ; DOMSET chg_list ; } ;
Used to access a list of objects related to the current object using where clause Many to One Relationship Example: The relationship of many Child Requests to Parent Request
Indicates a virtual column representing a set of objects selected by the where clause on the Advanced tab. It exists only in the Object Engine and is not physically stored in the database.
