Shall we compare two elements in a collection

Dear all,
shall we compare two scuccessive elements in a collection
i am creating a type.and i am dumping the data into that type using bulk collect.now i need to compare the data in type (previous value and current value).
please suggest
Thank you.
Suresh

899511 wrote:
Dear all,
shall we compare two scuccessive elements in a collection
i am creating a type.and i am dumping the data into that type using bulk collect.now i need to compare the data in type (previous value and current value).
please suggest
Thank you.
SureshDon't do it in a collection. Use SQL.
SQL provides Lead and Lag analytical function that allow you to compare next/previous values.
e.g.
http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions070.htm
Loading the data into a collection in memory to do something that can be easily achieved in SQL is just wrong and uses expensive PGA memory unnecessarily.

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http://msdn.microsoft.com/en-us/library/bb397894.aspx
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INSQLSERVER.COM
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g
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November 2007
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Hi, Java/XML/JDOM experts,
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Hi,
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schema?I will only support schema based xml files. To include a schema is a good practice. So I will valid them agaisnt schema (is this possible with JDOM? I am testing ...)
>
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AG
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Shall we compare two elements in a collection

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