摘要：-- =============================================-- Author: -- Create date: -- Description: -- Environment: -- ========... 阅读全文

摘要：declare @f int =5select floor(@f*0.22)-- 直接可显示结果create table demo(id int identity(1,1),id1 int)select * from demoinsert into demo(id1)select 2 union a... 阅读全文