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 'and
parm_val < 0' at line 7
Errno:1064
SQL::
SELECT
sum(1) as num
FROM
lanjinsoft_site_prod_param_data_memory
where
param_cate_b_id =
and
parm_val < 0
鑫源 C型参数 
