SDSS CASjobs -- looking for objects within a given radius of a coordinate pair

There's an inbuilt function for that:

select p.ra,p.dec,p.b,p.l,p.objID,p.run,p.rerun,p.camcol,p.field,p.obj,p.type,p.flags,p.fiberMag_r,p.petroMag_u,p.petroMag_g,p.petroMag_r,p.petroMag_i,p.petroMag_z,
       p.petroRad_r,p.petroR50_r,p.petroR90_r,p.isoA_g,p.isoB_g,p.isoA_r,p.isoB_r,p.isoPhi_r,p.specObjID into mydb.MiceB from PhotoObjAll as p,

dbo.fGetNearbyObjEq(191.5, 30.7, 1.0)

n 
WHERE p.objID = n.objID 

      and
      ( flags & (dbo.fPhotoFlags('NOPETRO') +
       dbo.fPhotoFlags('MANYPETRO')
       +dbo.fPhotoFlags('TOO_FEW_GOOD_DETECTIONS')) ) = 0