use master
if exists(select * from master.dbo.sysdatabases where name='mytback')
drop database mytback
gocreate database mytback
gouse mytback
goif exists(select * from sysobjects where name='tt')
drop table tt
gocreate table tt(id int primary key not null,
name varchar(20) not null)
godeclare @i int
set @i=1
while(@i<5)
begin
insert into tt values(1001+@i,'zhangsan'+convert(char,@i))
set @i=@i+1
enddrop table tt
goif exists(select * from sysdatabases where name='skybusiness')
begin
drop database skybusiness
print 'skybusiness已經存在，已被刪除@'
endelse
begin
create database skybusiness
on primary
(name=skybusiness_mdf,
filename='c:\a\skybusiness.mdf',
size=10mb,
maxsize=50mb,
filegrowth=25%
)log on
(name=skybusiness_ldf,
filename='c:\a\skybusiness.ldf',
size=10mb,
maxsize=50mb,
filegrowth=25%
)print 'skybusiness資料庫已經建立'
end--建聚集索引
create clustered index index_yexinwinners
on tablename(column_name)
with fillfactor=10
--建非聚集索引
create nonclustered index index_yexinwinners
on tablename(column_name)
with fillfactor=10
--建檢視
create view view_name
asselect * from pubs.titles
--建檢查檢視
create view vies_name
asselect * from pubs.titles
with check option
--建加密檢視
create view view_name
with encryption
asselect * from pubs.titles
--建表
create table tablename
(stuid int not null identity(1,1) primary key,
stuname varchar(30) not null,
stuage char(3) not null
)--新增check約束
alter table tablename
add check(stuage>0 and stuage<100)
--新增外來鍵
alter table tablename
add foreign key(stuname)
references xtablename(stuname)
--新增唯一約束
alter table tablename
add unique(stuid)
--建事務
begin tran
update xtable set money=money+10000 where id=1
update xtable set money=money-10000 where id=3
if(@@error<>0)
begin
print '轉賬失敗'
rollback tran
endelse
begin
print '轉賬成功！'
commit tran
end--建游標
declare cursor_name cursor
for select * from northwind.product
---建更新游標
declare cursor_name cursor
for select * from northwind.product for update
--建隨意移動游標
declare cursor_name cursor
for select * from northwind.product
--使用游標
open cursor_name
close cursor_name
--刪除游標
deallocate cursor_name
--移動游標
fetch next--下一條記錄
fetch last--最後一條記錄
fetch first--第一條記錄
fetch prior--上一條
fetch absolute n --絕對位置
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