12 2015 档案
摘要:SELECT Getdate() AS '系统当前日期', Datepart(YEAR,Getdate()) AS '年', Datepart(MONTH,Getdate()) AS '月', Datepart(DAY,Getdate()) AS '天', Datepart(HOUR,Getdate...
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摘要:一.数据定义语言(DDL) create table alter table drop table create index alter index drop index create view drop view二.数据操作语言(DML) Insert Update De...
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