December 2013
Intermediate to advanced
1872 pages
153h 31m
English
book
Microsoft® SQL Server 2012 Unleashed
by Ray Rankins, Paul T. Bertucci, Chris Gallelli, Alex T. Silverstein
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PATH Mode
PATH mode is the latest and best addition to the FOR XML syntax. It provides a straightforward way of using a limited XPath syntax to specify the shaping of query-produced XML. It is also a very compact syntax in comparison with some of the other modes, especially EXPLICIT.
Let’s look at how PATH mode works by re-creating the XML produced in Listing 49.9, this time using PATH mode. Listing 49.10 illustrates this mode.
LISTING 49.10 Using FOR XML PATH to Simplify an EXPLICIT Query
SELECT Reason.ScrapReasonId, Name 'text()', WorkOrderId 'WorkOrder/@WorkOrderId', ScrappedQty 'WorkOrder/@ScrappedQuantity'FROM Production.ScrapReason ReasonJOIN Production.WorkOrder WorkOrderON Reason.ScrapReasonId ...
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