Generating XML Tags Using SQL Query

We have a standard oracle package to generate the XML Tags.
We just need to pass the SQL statement as parameter to the package.

Below is an example, which prints Todays date as XML Tag

SELECT   DBMS_XMLGEN.getxml ('select sysdate today_date from dual') xml
  FROM   DUAL;

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There is another way to get the same output using some other functions.

Let me start off with a simple query to print TODAY_DATE tag only

SELECT   XMLELEMENT ("TODAY_DATE", SYSDATE) FROM DUAL;

Below is the output for the above statement

2011-11-21

Now, Let me change the date format as DD-MON-YY

SELECT   XMLELEMENT ("TODAY_DATE", TO_CHAR (SYSDATE, 'DD-MON-YY'))
FROM DUAL;

Below is the output for the above statement

21-NOV-11

Now, i will modify the query to get same output as we got using standard package

SELECT   ''
         || XMLELEMENT (
               "ROWSET",
               XMLELEMENT (
                  "ROW",
                  XMLELEMENT ("TODAY_DATE", TO_CHAR (SYSDATE, 'DD-MON-YY'))
               )
            )
  FROM   DUAL;

Below is the output for the above statement, which is same as what we got using standard package




21-NOV-11

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Ur's
AmarAlam