SQL语句错误： select * from cool_dynamic where id='131' and type=
错误信息： 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 '' at line 1

SQL语句错误： select * from cool_dynamic where id < 131 and type= order by id desc limit 1
错误信息： 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 'order by id desc limit 1' at line 1

SQL语句错误： select * from cool_dynamic where id > 131 and type= order by id asc limit 1
错误信息： 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 'order by id asc limit 1' at line 1