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use demo
go
/*´´½¨Óû§×Ô¶¨Òå(newtype)Êý¾ÝÀàÐÍ*/
/*exec sp_addtype newtype ,"char(10)"
go*/
/*ɾ³ý×Ô¶¨Òå(newtype)Êý¾ÝÀàÐÍ*/
/*exec sp_droptype newtype
go*/
/*¸ü¸Ä±íµÄÊôÐÔ*/
/*alter table family
alter column id int not null
go*/
/*´´½¨Ò»¸ö´æ´¢Ô±¹¤ÐÅÏ¢µÄ±í*/
/*create table employee
(
/*Ϊ±íÁвúÉúÒ»¸ö×Ô¶¯Éú³ÉµÄÐòºÅ*/
id int identity(1,1),
[name] char(20),
gender char(4)
)
go*/
/*²é¿´±íµÄÊôÐÔ*/
execute sp_help employee
go
////////////////////////////////////////////
use school
go
/*create table student
(
id int not null,--ѧºÅ
[name] char(20),
gender char(2),--ÐÔ±ð
age smallint,
grade smallint,--Äê¼¶
class smallint,
tercher_id int,
parents_id &n
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[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(Èý)--row_number() /rank()/dense_rank()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(ËÄ)--lag()/lead()
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[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(¶þ)--max()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(Èý)--row_number() /rank()/dense_rank()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(ËÄ)--lag()/lead()
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12 Essential Steps After Installing SQL Server
By : Sadequl Hussain
Jul 13, 2009
from: http://www.sql-server-performance.com/articles/dba/post_installation_steps_p1.aspx
Rolling out SQL Servers is a key task for
DBAs. While for some DBAs this can be a frequent exercise, others wi ......
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--DROP TABLE T_UserInfo--------------------------------------
CREATE
TABLE
T_UserInfo
(
Userid
varchar(20),
UserName varchar(20)
)
--
DECLARE
@I INT
DECLARE
@ENDID INT
SELECT
@I =
1
SELECT
@ ......
## ɾ³ýÊý¾Ý¿â
drop database ecport;
## ´´½¨Êý¾Ý¿â
create database ecport;
## ʹÓÃÊý¾Ý¿â
use ecport;
## ¹ú¼Ò±í½á¹¹
create table COUNTRY(
&nbs ......