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For use in RTF templates, BI Publisher has extended a set of SQL and XSL functions .
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Syntax
SQL
For extended SQL functions, the syntax is:
<?xdofx:expression?>
XSL
For extended XSL functions, the syntax is
<?xdoxslt:expression?>
You have more detail in the documentation but not all. Here below is a Java Doc only for extended XSL functions with all the detail for the 10.1.3.4 version. xsltfunctions10134.zip
Example
In my dataset I have COL4 and COL5. I would like to calculate the difference between these 2 columns an put this in a new column. The function to do this is:
<?xdofx:COL4-COL5?>