sql问题

[征服者X]

在 SQL Server 的sql查询语句中让小数位保留四位 如下，应该怎样修改一下？
sum(round(kct03.kcssje*kct03.kcxszk,2))/sum(round(kct03.kcxsje,2)) as xszk

[whoami333]

select round(sum(round(kct03.kcssje*kct03.kcxszk,2))/sum(round(kct03.kcxsje,2)),4) as xszk ???

[征服者X]

诶呀！散分