Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Ò»¸öÏîÄ¿Éæ¼°µ½µÄ50¸öSQLÓï¾ä

 /* 
 ±êÌ⣺һ¸öÏîÄ¿Éæ¼°µ½µÄ50¸öSQLÓï¾ä(ÕûÀí°æ) 
 ×÷Õߣº°®Ð¾õÂÞ.ع»ª
 Ê±¼ä£º2010-05-10 
 ËµÃ÷£ºÒÔÏÂÎåÊ®¸öÓï¾ä¶¼°´ÕÕ²âÊÔÊý¾Ý½øÐйý²âÊÔ£¬×îºÃÿ´ÎÖ»µ¥¶ÀÔËÐÐÒ»¸öÓï¾ä¡£ 
 ÎÊÌâ¼°ÃèÊö£º 
 --1.ѧÉú±í 
 Student(S#,Sname,Sage,Ssex) --S# ѧÉú±àºÅ,Sname ѧÉúÐÕÃû,Sage ³öÉúÄêÔÂ,Ssex ѧÉúÐÔ±ð 
 --2.¿Î³Ì±í  
 Course(C#,Cname,T#) --C# --¿Î³Ì±àºÅ,Cname ¿Î³ÌÃû³Æ,T# ½Ìʦ±àºÅ 
 --3.½Ìʦ±í  
 Teacher(T#,Tname) --T# ½Ìʦ±àºÅ,Tname ½ÌʦÐÕÃû 
 --4.³É¼¨±í  
 SC(S#,C#,score) --S# ѧÉú±àºÅ,C# ¿Î³Ì±àºÅ,score ·ÖÊý 
 */ 
 --´´½¨²âÊÔÊý¾Ý 
 create table Student(S# varchar(10),Sname nvarchar(10),Sage datetime,Ssex nvarchar(10)) 
 insert into Student values('01' , N'ÕÔÀ×' , '1990-01-01' , N'ÄÐ') 
 insert into Student values('02' , N'Ç®µç' , '1990-12-21' , N'ÄÐ') 
 insert into Student values('03' , N'Ëï·ç' , '1990-05-20' , N'ÄÐ') 
 insert into Student values('04' , N'ÀîÔÆ' , '1990-08-06' , N'ÄÐ') 
 insert into Student values('05' , N'ÖÜ÷' , '1991-12-01' , N'Å®') 
 insert into Student values('06' , N'ÎâÀ¼' , '1992-03-01' , N'Å®') 
 insert into Student values('07' , N'Ö£Öñ' , '1989-07-01' , N'Å®') 
 insert into Student values('08' , N'Íõ¾Õ' , '1990-01-20' , N'Å®') 
 create table Course(C# varchar(10),Cname nvarchar(10),T# varchar(10)) 
 insert into Course values('01' , N'ÓïÎÄ' , '02') 
 insert into Course values('02' , N'Êýѧ' , '01') 
 insert into Course values('03' , N'Ó¢Óï' , '03') 
 create table Teacher(T# varchar(10),Tname nvarchar(10)) 
 insert into Teacher values('01' , N'ÕÅÈý') 
 insert into Teacher values('02' , N'ÀîËÄ') 
 insert into Teacher values('03' , N'ÍõÎå') 
 create table SC(S# varchar(10),C# varchar(10),score decimal(18,1))&nbs


Ïà¹ØÎĵµ£º

ÈçºÎÓà SQL Tuning Advisor (STA) ÓÅ»¯SQLÓï¾ä


ÔÚOracle10g֮ǰ£¬ÓÅ»¯SQLÊǸö±È½Ï·ÑÁ¦µÄ¼¼Êõ»î£¬²»Í£µÄ·ÖÎöÖ´Ðмƻ®£¬¼Óhint£¬·ÖÎöͳ¼ÆÐÅÏ¢µÈµÈ¡£ÔÚ10gÖУ¬OracleÍÆ³öÁË×Ô¼ºµÄSQLÓÅ»¯¸¨Öú¹¤¾ß: SQLÓÅ»¯Æ÷(SQL Tuning Advisor £ºSTA)£¬ËüÊÇеÄDBMS_SQLTUNE°ü¡£Ê¹ÓÃSTAÒ»¶¨Òª±£Ö¤ÓÅ»¯Æ÷ÊÇCBOģʽÏ¡£
Ö´ÐÐDBMS_SQLTUNE°ü½øÐÐsqlÓÅ»¯ÐèÒªÓÐadvisorµ ......

SQL Serverµ¼Èëµ¼³öÊý¾Ý´óÈ«

SQLÓï¾äµ¼Èëµ¼³ö´óÈ«[ÊÕ¼¯]
ÕýÇÉÕâÁ½ÌìÒªÓõ½Õâ¸ö£¬ÉÏÍøÕÒµ½Ò»¸ö£¬»ØÀ´×Ô¼º¼ì²âһϣº
/******* µ¼³öµ½excel
EXEC master..xp_cmdshell 'bcp SettleDB.dbo.shanghu out c:\temp1.xls -c -q -
S"GNETDATA/GNETDATA" -U"sa" -P""'
/*********** µ¼ÈëExcel
SELECT *
from OpenDataSource( 'Microsoft.Jet.OLEDB.4.0',
......

½«accessµ¼ÈëSQL server £¨×ª£©

ÊìϤSQL SERVER 2000µÄÊý¾Ý¿â¹ÜÀíÔ±¶¼ÖªµÀ£¬ÆäDTS¿ÉÒÔ½øÐÐÊý¾ÝµÄµ¼Èëµ¼³ö£¬Æäʵ£¬ÎÒÃÇÒ²¿ÉÒÔʹÓÃTransact-SQLÓï¾ä½øÐе¼Èëµ¼³ö²Ù×÷¡£ÔÚ Transact-SQLÓï¾äÖУ¬ÎÒÃÇÖ÷ҪʹÓÃOpenDataSourceº¯Êý¡¢OPENROWSET º¯Êý£¬¹ØÓÚº¯ÊýµÄÏêϸ˵Ã÷£¬Çë²Î¿¼SQLÁª»ú°ïÖú¡£ÀûÓÃÏÂÊö·½·¨£¬¿ÉÒÔÊ®·ÖÈÝÒ×µØÊµÏÖSQL SERV ......

oracle sql*plus set &spool½éÉÜ(¶þ)

Oracle spool Ó÷¨Ð¡½á[°ëת°ë¼Ó]
¹ØÓÚSPOOL(SPOOLÊÇSQLPLUSµÄÃüÁ²»ÊÇSQLÓï·¨ÀïÃæµÄ¶«Î÷¡£)
¶ÔÓÚSPOOLÊý¾ÝµÄSQL£¬×îºÃÒª×Ô¼º¶¨Òå¸ñʽ£¬ÒÔ·½±ã³ÌÐòÖ±½Óµ¼Èë,SQLÓï¾äÈ磺
select empno||','||ename||','||sal from emp;
spool³£ÓõÄÉèÖÃ
set colsep' ';¡¡¡¡¡¡ //ÓòÊä³ö·Ö¸ô·û
set echo off;¡¡¡¡¡¡¡¡//ÏÔʾstartÆô¶¯µ ......

Sql²Ù×÷´óÈ«

SQL²Ù×÷È«¼¯
ÏÂÁÐÓï¾ä²¿·ÖÊÇMssqlÓï¾ä£¬²»¿ÉÒÔÔÚaccessÖÐʹÓá£
SQL·ÖÀࣺ 
DDL—Êý¾Ý¶¨ÒåÓïÑÔ(CREATE£¬ALTER£¬DROP£¬DECLARE) 
DML—Êý¾Ý²Ù×ÝÓïÑÔ(
SELECT£¬DELETE£¬UPDATE£¬INSERT) 
DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
Ê×ÏÈ,¼òÒª½éÉÜ»ù´¡Óï¾ä£º
1¡¢ËµÃ÷£ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ