存储过程能这样写吗？
create PROCEDURE App_Customers_Update
@CustomerID int,
@Phone nvarchar(32),
@FamilyTypeID int,
@IDCardNo nvarchar(32),
@CustomerLevel int,
@FamilyTypeName nvarchar(64)


AS
Update Customers
set Phone = @Phone,FamilyTypeID = (select FamilyTypeID from FamilyType where FamilyTypeName = @FamilyTypeName),IDCardNo = @IDCardNo,CustomerLevel = @CustomerLevel
where CustomerID = @CustomerID
RETURN


[解决办法]
应该可以，如果出错把select FamilyTypeID from FamilyType where FamilyTypeName = @FamilyTypeName赋值给一个变量，然后FamilyTypeID=变量
[解决办法]
跟踪一下@FamilyTypeName参数的值
然后在查询分析器下运行这句select FamilyTypeID from FamilyType where FamilyTypeName = 监视得到的值,看看什么结果