How to execute an sql function containing a SELECT query as paramete

Question

Hi
I want to execute this sql query using JDBC methods , but could not be able to find any appropriate method to execute this query.
select dbms_xmlgen.getxml(select * from departments) from dual
please some one help with appropriate java code to execute it.
Thank you

Answer 1

>
I want to execute this sql query using JDBC methods , but could not be able to find any appropriate method to execute this query.
select dbms_xmlgen.getxml(select * from departments) from dual
please some one help with appropriate java code to execute it.
>
Java code? You can't execute that query at all since it is invalid. The parameter needs to be a query string NOT a query.
select dbms_xmlgen.getxml('select * from departments') from dual See the DBMS_XMLGEN package in the docs
http://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_xmlgen.htm#i1013206
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Converts the results from the SQL query string to XML format, and returns the XML as a temporary CLOB, which must be subsequently freed using the DBMS_LOB.FREETEMPORARY call:
DBMS_XMLGEN.GETXML (
sqlQuery IN VARCHAR2,
dtdOrSchema IN number := NONE)
RETURN CLOB;
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Then you execute that query like any other query that returns a result set. The result set will consist of one row and one column of CLOB datatype.
See the JDBC Developer's Guide - it has examples of how to execute queries that return result sets.
And this section shows how tow read/write CLOBs
http://docs.oracle.com/cd/B28359_01/java.111/b31224/oralob.htm#sthref755