查询当前月份web
select datename(month,getdate()) select datepart(month,getdate())
选取左边的字符sql
select left('12345',2) from dummy
清除左边的空格:spa
select ltrim(' aa bb')
清除右边的空格:code
select rtrim(" ab cd ") from dummy
字符的重复打印orm
select replicate('ab',4)
再过89天后是哪一天 ci
select dateadd(day,89,getdate())
查看用户id,用户名get
select user_id(),user