Generating null query SQl while loading the view

Hi Gurus,

I analyzing one AOM log to improve performance issue while direct navigating to a detail view (paste the URL in the browser, note that the URL has the view name, applet name and the rowid, then hit enter), in the logs, I am seeing that there are 2 SQL generated for the applet BC. first SQL executed is doing a null query. another similar SQL was generated but this 2nd SQL is with the bind variable of the row id provided in the URL.

I want to understand if the first SQL that was generated is a Siebel Vanilla behaviour? Is it like a warm up call to the view before it actual loads the data?