how to modify default SQL query

[rahulteja]

When I click that EXPORT button, default SQL query is executed and I want to change that query. 

 

Or is there anyway to create another button to perform my custom SQL query.

 

please help me out with this.

 

Thanks in advance.

 

Here is Image :

 

Edited October 9, 2017 by rahulteja (see edit history)