存储过程中执行动态Sql语句

ALTER proc [dbo].[p_query]
(
@start int,
@end int
)
as
begin
declare @viewName nvarchar(32)
declare @sql nvarchar(256)

select @viewName =viewName  from T_viewSelect where dataMin<@start and dataMax>@end and dataMax >@start

set @sql='select * from '+@viewName
set @sql=@sql+ ' where id >'+cast(@start as nvarchar)
set @sql=@sql+'and id< '+cast(@end as nvarchar)
print @sql
exec(@sql)
end