error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-15,15' at line 1

sql: select bh,bianh,pinp,mingc,xingh,guig,leib,attributename1,attributename2,attributename3 from caizhanggui_chanp where cpsx=1 and leib='001' order by syzs desc,xgsj limit -15,15