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Overview of Data Manipulation in BPEL

There are many ways to manipulate data in a BPEL process, but it is not always obvious how to perform the data copying tasks easily or efficiently.

Also, you can select an expression language to use on a expression-by-expression basis, depending on your data structure and the selections from it you want to make. For details, see Selecting XPath or XQuery for Expression Building.

Use the following table to consider some examples of manipulating data with a given BPEL technique.

Using copy operations in an assign	Tips for Copy Operations Copy Operation Query and Expression Examples Copy Operation Literal Contents Examples Copy Operation Dynamic Endpoint Reference Example Element to Element Copy Operation with Keep Source Element Name Attribute Copy Operation with Ignore Missing From Data Attribute
	Input Variable Output Variable From Part to Variable From Variable to Part
Initialize a variable	Initializing a Variable
XPath examples	Example XPath Expressions
XQuery examples	Example XQuery Expressions
Attachment custom functions	Attachment Custom Function Examples
Time and date formats	Deadline and Duration Expressions