Get count days between two dates without weekends with SQL

Hi,

is it possible to get the days between two dates without the weekends or without sunday?

i.E. 31.03.2016 -> 05.04.2016 can calculated with  "select (field_date_end - field_date_start) days from mytable;"

Brgds,

Yusuf

PS: We're using ADS 11.10.x