How can I call a plsql function from an attribute?

I have an attribute defined in an element. I want execute a PLSQL function from the attribute, and display the returne value with an HTML template.
I've defined the attribute's type like PLSQL, and I've put the called of the function in the value of the attribute, but it doesn't work. The only value I obtain is an URL (I think that is the URL of the function or someting like this).
How can I call to my function from the attribute and display the returnes value in the page?
Thanks.

Thanks, but it doesn't work. I have an attribute called ID_BOL and I want to associate a sequence to that attribute. I've created a function, with the sequence. This function return de value of the sequence. I want taht the attribute takes the value of the sequenece dinamically.
I've tried it, creating the type attribute like PLSQL, and calling the function from the attribute, but it doesn't work.
How can I return the sequence value to my attribute?
Thanks.

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Hi,
I suggest you write an alert() in your function to check whether it can be executed first.
If alert() is ok, then it would be an issue of the code with Client Object Model, you can take a look at the link below about How to retrieve List Items Using JavaScript:
http://msdn.microsoft.com/en-us/library/office/hh185007(v=office.14).aspx
If alert() can’t be executed, then please check whether the steps of created ribbon button is correct.
The links below about how to add a custom button to the ribbon:
http://aarebrot.net/blog/2010/09/adding-a-custom-button-to-the-ribbon-using-a-feature-in-sharepoint-2010/
http://www.c-sharpcorner.com/uploadfile/anavijai/how-to-create-custom-button-in-sharepoint-2010-ribbon-user-interface/
https://pholpar.wordpress.com/tag/custom-actions/
What’s more, there seems no query succeeded handle function in your code, please take a look at the link provided above for a reference.
Thanks
Patrick Liang
TechNet Community Support

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How can I call a plsql function from an attribute?

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