请帮忙看下这段代码里 错哪了

请帮忙看下这段代码里 哪里错了？
SELECT banci AS p1, count(id) AS p2, sum(cint(p4)) AS p3
FROM t_a_onlineDetail
GROUP BY banci;


[解决办法]
cint(p4)改为CAST(p4 as int)