The attempted robbery occurred a little before 11 a.m. in the 800 block of Trestle Glen Road.
MORE: Oakland bakery owner dies from injuries after being dragged by suspect's car during robbery: Family
Two suspects approached both the child and another person and demanded the person's belongings. One suspect had a gun, Oakland police said.
The wounded child was taken to a hospital and was in stable condition Tuesday, according to police.
MORE: Car break-ins force Raising Cane's to close Oakland dining room
Oakland police say despite perceptions that robberies are rampant, the increase over the past year is actually three percent.
On Monday, police arrested five suspects they believe are responsible for over a dozen robberies in the past 30 days.
Anyone with information about the case is asked to please call the Police Department's criminal investigations division at (510) 238-3426 or (510) 238-3326.