XMLAGG, XMLELEMENT - XML functions - forum topic by ASCHARAN

Hi Team,

I have a sql statement like below.
RTRIM(XMLAGG(XMLELEMENT (E, COL1|| ';') ORDER BY COL1).EXTRACT ('//TEXT()'), ';') AS COL_NAME
Can someone tell me the usage of XML functions and what above command does line by line.
 
Thanks,
-- AsCharan