DAS DB callout

ruler

Hello all,

I am using DAS to map my teamsite DCR to DB2 database.
I need to have a callout on one of the fields When i enter something in this field and hit the callout button it should return me all the values like the one entered, from the mapped field in the database.
In essence i am trying to use a callout to query the DB somethinhg like "Select * from TABLE where field-in-db like "%text-enetered-in-DCR-callout-field%";
I have no idea how i can do this.
Any help appreciated.