oracle Âß¼±¸·ÝÃüÁîEXP/IMP²ÎÊý²Î¿¼ÊÖ²á
oracle Âß¼±¸·ÝÃüÁîEXP/IMP²ÎÊý²Î¿¼ÊÖ²á
°ïÖúÃüÁexp help=y
Export: Release 10.2.0.1.0 - Production on Thu Jul 20 10:39:50 2006
Copyright (c) 1982, 2005, Oracle. All rights reserved.
You can let Export prompt you for parameters by entering the EXP
command followed by your username/password:
Example: EXP SCOTT/TIGER
Or, you can control how Export runs by entering the EXP command followed
by various arguments. To specify parameters, you use keywords:
Format: EXP KEYWORD=value or KEYWORD=(value1,value2,...,valueN)
Example: EXP SCOTT/TIGER GRANTS=Y TABLES=(EMP,DEPT,MGR)
or TABLES=(T1:P1,T1:P2), if T1 is partitioned table
USERID must be the first parameter on the command line.
Keyword Description (Default) Keyword Description (Default)
--------------------------------------------------------------------------
USERID username/password FULL export entire file (N)
BUFFER size of data buffer OWNER list of owner usernames
FILE output files (EXPDAT.DMP) TABLES list of table names
COMPRESS import into one extent (Y) RECORDLENGTH length of IO record
GRANTS export grants (Y) INCTYPE incremental export type
INDEXES export indexes (Y) RECORD &n
Ïà¹ØÎĵµ£º
½¨Á¢±íÈçÏÂ:
ѧÉú»ù±¾ÐÅÏ¢±í
CREATE Student(
[Studentid][Int]IDENTITY(1,1)NOT NULL primary key,--Ö÷¼ü
[StudentName][char]NOT NULL
)
¿Î³ÌÐÅÏ¢±í
CREATE Subject(
[SubjectID][char]NOT NULL primary key, --Ö÷¼ü
[SubjectName][char]NOT NULL
)
³ ......
Êý¾Ý¿â¶ÔÏó
<1>±í(Ô¼Êø)
<2>ÈçºÎ×Ô¶¯±àºÅ
SQLserver
--IDENTITYÊôÐÔ
create table test(
xh int identity(1,2) primary key,
name varchar(20)
);
insert into test(name) values ('mike');
ORACLE
Ò»¸ö¶ÔÏó(ÐòÁÐsequenc ......
ORACLEÊý¾Ý¿âÀï±íµ¼ÈëSQL ServerÊý¾Ý¿â
1¡¢ÔÚÄ¿µÄSQL ServerÊý¾Ý¿â·þÎñÆ÷ÉÏ°²×°ORACLE ClientÈí¼þ»òÕßORACLE ODBC Driver.
ÔÚ$ORACLE_HOME\network\admin\tnsnames.oraÀïÅäÖÃORACLEÊý¾Ý¿âµÄ±ðÃû(service name)¡£
2¡¢ÔÚWIN2000»òÕßwin200 ......
Oracle µÄ´úÂë±íʾ¼°ÊÂÀý
1. select + xxx + from + xxx //²éѯÓï¾ä xxx ±íʾһ¸ö±í
Select * from + xxx // * ±íʾһ¸öÁбíÖÐËùÓеÄÄÚÈÝ
Àࣺ 1£©// select * from country
  ......
ORACLE·ÖÇø±íµÄ²Ù×÷Ó¦ÓÃ
ORACLE·ÖÇø±íµÄ²Ù×÷Ó¦ÓÃ
ÕªÒª£ºÔÚ´óÁ¿ÒµÎñÊý¾Ý´¦ÀíµÄÏîÄ¿ÖУ¬¿ÉÒÔ¿¼ÂÇʹÓ÷ÖÇø±íÀ´Ìá¸ßÓ¦ÓÃϵͳµÄÐÔÄܲ¢·½±ãÊý¾Ý¹ÜÀí£¬±¾ÎÄÏêϸ½éÉÜÁË·ÖÇø±íµÄʹÓᣡ¡¡¡ ÔÚ´óÐ͵ÄÆóÒµÓ¦ÓûòÆóÒµ¼¶µÄÊý¾Ý¿âÓ¦ÓÃÖУ¬Òª´¦ÀíµÄÊý¾ÝÁ¿Í¨³£¿ÉÒÔ´ïµ½¼¸Ê®µ½¼¸°ÙGB£¬ÓеÄÉõÖÁ¿ÉÒÔµ½TB¼¶¡£ËäÈ»´æ´¢½éÖʺÍÊý¾Ý´¦Àí¼¼ÊõµÄ·¢Õ ......