xs:element Vs xs:attribute

Looks xs:element and xs:attribute are same. When to use xs:element or xs:attribute ?

kri shan wrote:Looks xs:element and xs:attribute are same.

Surely not. Can you explain what made you think that?

<order_details>
<order_id>123A</order_id>
<price>243</price>
</order_details>

order_id and price defined in XSD as xs:element or xs:attribute ?

That's not a schema, it's an XML document. If you have a question about a schema which is supposed to describe that document, you should show us the schema you are asking about.

It's typo, not XSD. It's XML.

<order_details>
<order_id>123A</order_id>
<price>243</price>
</order_details>

XSD:
-----

<xs:complexType name="OrderDetails">
<xs:element name="order_id" type="xs:string">
<xs:element name="price" type="xs:float">
</xs:complexType>

(or)

<xs:complexType name="OrderDetails">
<xs:attribute name="order_id" type="xs:string">
<xs:attribute name="price" type="xs:float">
</xs:complexType>

Which is correct ?

What do you mean by "correct"?

Only one of those schemas describes the document you posted, it's true. But it should be obvious which one it is if you know the difference between an element and an attribute.

Perhaps that was your question in the first place? If so, you're asking in a very roundabout way.

<order_details>
<order_id>123A</order_id>
<price>243</price>
</order_details>

order_id and price is attribute (or) element in XSD ?

What you posted is not an XSD (schema). It's just an ordinary XML document.

Here's a link to an XML tutorial which might explain some useful concepts.

After reading some articles, my understanding:
element is for simple/complex types. atrribute is only for simple types.