There are several ways to move the camera in blender. You can move manual by using move and rotate tools or you can move directly form camera view.
Blender How To Move Camera
1. Select Camera
2. Click move tool to move camera
3. Click rotate tool to rotate camera
Follow this steps to move from camera view
1. Press Ctrl+Alt+Numpad 0 to go to camera view
2. On view tab check Lock Camera to View
3. Now you can use scroll mouse to move camera, like zoom, pan and orbit