{"id":206,"date":"2022-09-29T23:13:10","date_gmt":"2022-09-29T15:13:10","guid":{"rendered":"http:\/\/blog.nhl520.cn\/?p=206"},"modified":"2022-11-17T17:42:32","modified_gmt":"2022-11-17T09:42:32","slug":"mysql%e5%b8%b8%e7%94%a8%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/blog.nhl520.cn\/index.php\/2022\/09\/29\/mysql%e5%b8%b8%e7%94%a8%e4%bb%a3%e7%a0%81\/","title":{"rendered":"\u6570\u636e\u5e93\u5e38\u7528\u4ee3\u7801"},"content":{"rendered":"\n

\u63d0\u793a\uff1a\u672a\u7ed3\u675f\uff0c\u540e\u9762\u8fd8\u4f1a\u66f4\u65b0<\/mark><\/p>\n\n\n\n

\u8bf4\u660e\uff1aOracle\u548cNavicat\u6570\u636e\u5e93\u51e0\u4e4e\u90fd\u53ef\u4ee5\u901a\u7528(\u770b\u597d\u5907\u6ce8\u5373\u53ef)\u3002\u5982\u6709\u9519\u8bef\u6216\u9700\u8981\u5e2e\u52a9\u7684\u8bf7\u8054\u7cfb\u535a\u4e3bQQ\/\u5fae\u4fe1\uff1a3132876589<\/mark><\/p>\n\n\n\n

1\u3001\u521b\u5efa\/\u5220\u9664\u8868\u6307\u4ee4\uff0c\u4ee5\u8868stu_inf\u4e3a\u53c2\u8003<\/p>\n\n\n\n

\u975e\u7a7a(not null)\u3001\n\u552f\u4e00(unique)\u3001\n\u68c0\u67e5(check)\u3001\n\u4e3b\u952e(primary key)\u3001\n\u5916\u952e(references\u6216foreign key)<\/pre>\n\n\n\n
\/\/\u5220\u9664\u6574\u5f20\u8868\ndelete from stu_inf;<\/pre>\n\n\n\n
\/\/\u521b\u5efa\u8868\ncreate table stu_inf(\nxh number(12),\nxm varchar(10),\nxb varchar(5),\ncsrq date,\nsfzh varchar2(20),\njg varchar(50)\n);<\/pre>\n\n\n\n
\u5c06\u5458\u5de5id\u4e3a3\u7684\u5458\u5de5\u5de5\u8d44\u589e\u52a0100\u7684sql\u8bed\u53e5<\/p>\n\n\n\n
\u4f7f\u7528 update \u66f4\u65b0\u8bb0\u5f55\uff1a\nupdate \u5de5\u8d44\u8868 set \u5de5\u8d44 = \u5de5\u8d44 + 100 where id = 3<\/pre>\n\n\n\n
2\u3001\u4e3a\u8868stu_inf\u589e\u52a0\u5b57\u6bb5age\uff0c\u6570\u636e\u7c7b\u578bnumber\uff083\uff09<\/p>\n\n\n\n
alter table stu_inf add(age number(3),birthday date default sysdate);<\/pre>\n\n\n\n
3\u3001\u4fee\u6539\u8868stu_inf\u5b57\u6bb5xm\uff0c\u6570\u636e\u7c7b\u578b\u6539\u6210VARCHAR2\uff0820\uff09<\/p>\n\n\n\n
alter table stu_inf modify(xm varchar(20));<\/pre>\n\n\n\n
4\u3001\u7ed9stu_inf\u7684\u5b57\u6bb5xm\uff0c\u91cd\u65b0\u547d\u540d\u4e3axmname<\/p>\n\n\n\n
alter table stu_inf rename column xm to xmname;<\/pre>\n\n\n\n
5\u3001\u5220\u9664stu_inf\u5b57\u6bb5age<\/p>\n\n\n\n
alter table stu_inf drop column age;<\/pre>\n\n\n\n
6\u3001\u67e5\u8be2\u201d\u7537\u201c\u5b57\u5360\u7528\u591a\u5c11\u4e2a\u5b57\u7b26<\/p>\n\n\n\n
select lengthb('\u7537') from dual;<\/pre>\n\n\n\n
7\u3001\u4fee\u6539XSB\u8868\u6570\u636e\uff0c\u628a\u738b\u6797\u7684\u6027\u522b\u6539\u4e3a\u5973<\/p>\n\n\n\n
update xsb set xb='\u5973' where xm='\u738b\u6797';<\/pre>\n\n\n\n
8\u3001\u5220\u9664XSB\u8868\u6570\u636e\uff0c\u5220\u9664\u4e13\u4e1a\u4e3a\u201c\u901a\u4fe1\u5de5\u7a0b\u201d\u7684\u5b66\u751f\u6570\u636e<\/p>\n\n\n\n
delete from xsb where zy='\u901a\u4fe1\u5de5\u7a0b';<\/pre>\n\n\n\n
9\u3001\u63d2\u5165\u6570\u636e\u5e93(\u8fd9\u91cc\u662foracle\u6570\u636e\u5e93\u7684\u63d2\u5165\u65b9\u6cd5)<\/p>\n\n\n\n
insert into xsb values('081101','\u738b\u6797','\u7537',to_date('19990101','YYYYMMDD'),'\u8ba1\u7b97\u673a',50,null);\ninsert into xsb values('081103','\u738b\u71d5','\u5973',to_date('19891006','YYYYMMDD'),'\u8ba1\u7b97\u673a',50,null);\ninsert into xsb values('081108','\u6797\u4e00\u51e1','\u7537',to_date('19890805','YYYYMMDD'),'\u8ba1\u7b97\u673a',52,'\u5df2\u63d0\u524d\u4fee\u5b8c\u4e00\u95e8\u8bfe');\ninsert into xsb values('081102','\u738b\u6797','\u5973',to_date('19890129','YYYYMMDD'),'\u901a\u4fe1\u5de5\u7a0b',40,'\u6709\u4e00\u95e8\u8bfe\u4e0d\u53ca\u683c');\ninsert into xsb values('081104','\u9a6c\u7433\u7433','\u5973',to_date('19890210','YYYYMMDD'),'\u901a\u4fe1\u5de5\u7a0b',42,null);<\/pre>\n\n\n\n
   Navicat\u6570\u636e\u5e93\u7684\u63d2\u5165\u65b9\u6cd5<\/p>\n\n\n\n
insert into \u8868\u540d(\u5b57\u6bb5\u540d,\u5b57\u6bb5\u540d,\u5b57\u6bb5\u540d)values('0352',2,85);<\/pre>\n\n\n\n
10\u3001\u53ea\u80fd\u8f93\u5165\u7537\u5973\uff0c\u9ed8\u8ba4\u503c\u4e3a\u201d\u7537\u201c(\u8fd9\u91cc\u662foracle\u6570\u636e\u5e93\u65b9\u6cd5)<\/p>\n\n\n\n
xb char(3) default '\u7537' check(xb='\u7537' or xb='\u5973'),<\/pre>\n\n\n\n
Navicat\u6570\u636e\u5e93\u7684\u53ea\u80fd\u7537\u5973\u7684\u65b9\u6cd5<\/p>\n\n\n\n
alter table \u8868\u540d modify column \u5b57\u6bb5\u540d enum('\u7537','\u5973');<\/pre>\n\n\n\n
11\u3001\u5e38\u7528\u6570\u636e\u5b57\u5178<\/p>\n\n\n\n
      \u8bf4\u660e\uff1a\u6570\u636e\u5b57\u5178\u4f5c\u4e3a\u4e00\u79cd\u5143\u6570\u636e\uff0c\u5728Oracle\u4e2d\u7684\u4f5c\u7528\u662f\u5b58\u653e\u6574\u4e2a\u6570\u636e\u5e93\u5b9e\u4f8b\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u5f88\u591a\u7684\u6570\u636e\u5b57\u5178\u90fd\u5fc5\u987b\u4ee5system\u6216\u8005\u662fsysdba\u7528\u6237\u767b\u5f55\u624d\u80fd\u591f\u4f7f\u7528\u7684\u3002\u8fd9\u4e9b\u6570\u636e\u5b57\u5178\u7684\u7ed3\u6784\uff0c\u53ef\u4ee5\u901a\u8fc7\u8f93\u5165\u201cdesc \u6570\u636e\u5b57\u5178\u540d\u79f0\u201d\u7684\u65b9\u5f0f\u67e5\u8be2\u3002<\/p>\n\n\n\n
(1) \u67e5\u770bUSER\u89c6\u56fe(\u5f53\u524d\u7528\u6237\u6240\u62e5\u6709\u7684\u8868)\nSQL>select table_name from USER_TABLES;\n(2) \u67e5\u770bALL\u89c6\u56fe(\u5f53\u524d\u7528\u6237\u53ef\u4ee5\u67e5\u8be2\u7684\u8868)\nSQL>select table_name from ALL_TABLES;\n(3) \u67e5\u770bDBA\u89c6\u56fe(\u67e5\u8be2\u6570\u636e\u5e93\u4e2d\u6240\u6709\u7684\u8868)\nSQL>select table_name from DBA_TABLES;\n(4) \u67e5\u8be2\u6570\u636e\u5e93\u4e2d\u5f53\u524d\u5b58\u5728\u7684Oracle\u7528\u6237\nSQL>select username from dba_users;\n(5) \u67e5\u8be2\u672c\u7528\u6237\u6240\u62e5\u6709\u7684\u7cfb\u7edf\u6743\u9650\nSQL>select * from user_sys_privs;\n(6) \u67e5\u8be2\u672c\u7528\u6237\u62e5\u6709\u5176\u4ed6\u7528\u6237\u5bf9\u8c61\u7684\u6743\u9650 \nSQL>select * from user_tab_privs; \n(7) \u67e5\u8be2\u672c\u7528\u6237\u62e5\u6709\u7684\u5bf9\u8c61\nSQL>select * from user_catalog;\n(8) \u67e5\u8be2\u5f53\u524d\u6570\u636e\u5e93\u7684\u8be6\u7ec6\u4fe1\u606f \nSQL>select * from V$DATABASE;\n(9) \u53d6\u5f97oracle\u7248\u672c\u7684\u8be6\u7ec6\u4fe1\u606f \nSQL>select * from V$VERSION;\n(10) \u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u6240\u6709\u65e5\u5fd7\u6587\u4ef6\u7684\u4fe1\u606f\nSQL>select * from v$logfile;\n(11) \u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u6240\u6709\u63a7\u5236\u6587\u4ef6\u7684\u4fe1\u606f\u3002 \nSQL>select * from V$CONTROLFILE; \n(12) \u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u6240\u6709\u6570\u636e\u6587\u4ef6\u7684\u8be6\u7ec6\u4fe1\u606f\u3002 \nSQL>select * from V$DATAFILE;<\/pre>\n\n\n\n
12\u3001\u8d4b\u4e88\u7528\u6237\u8fde\u63a5\u6570\u636e\u5e93\u7684\u6743\u9650(Oracle\u6570\u636e\u5e93)<\/p>\n\n\n\n
grant create session to student ;<\/pre>\n\n\n\n
13\u3001\u8d4b\u4e88\u7528\u6237\u8fde\u63a5\u6570\u636e\u5e93\u7684\u89d2\u8272(Oracle\u6570\u636e\u5e93)<\/p>\n\n\n\n
grant connect to student;<\/pre>\n\n\n\n
14\u3001\u56de\u6536\u7528\u6237\u8fde\u63a5\u6570\u636e\u5e93\u7684\u6743\u9650(Oracle\u6570\u636e\u5e93)<\/p>\n\n\n\n
revoke create session from student;<\/pre>\n\n\n\n
15\u3001\u56de\u6536\u7528\u6237\u8fde\u63a5\u6570\u636e\u5e93\u7684\u89d2\u8272(Oracle\u6570\u636e\u5e93)<\/p>\n\n\n\n
revoke connect from student;<\/pre>\n\n\n\n
16\u3001\u521b\u5efa\u8868\u7a7a\u95f4(Oracle\u6570\u636e\u5e93)<\/p>\n\n\n\n
\/\/ylxt\u662f\u6570\u636e\u5e93\u540d\ncreate tablespace ylxt\ndatafile 'd:\\temp\\ylxt.dbf'\nsize 10m\nautoextend on next 1m;<\/pre>\n\n\n\n
1.\u5efa\u7acb\u5b58\u653e\u6570\u636e\u5e93\u7684\u5730\u65b9\uff08\u521b\u5efa\u8868\u7a7a\u95f4\u3001\u6570\u636e\u6587\u4ef6\uff09\u3002\u56fe\u4e66\u5b58\u653e\u5730\uff1f\n2.\u8c01\u6765\u7ba1\u7406\u6570\u636e\u5e93\uff1f\uff08\u521b\u5efa\u6982\u8981\u6587\u4ef6\u3001\u521b\u5efa\u7528\u6237\u3001\u7528\u6237\u914d\u7f6e\uff09 \u8c01\u6765\u7ba1\u4e66\uff1f\n3.\u6570\u636e\u6539\u5982\u4f55\u7ec4\u6210\u548c\u7ef4\u62a4\uff1f\uff08\u521b\u5efa\u8868\uff0c\u589e\u5220\u6539\u6570\u636e\uff09\u4e66\u653e\u54ea\u4e2a\u67b6\u5b50\u4e0a\uff0c\u5206\u7c7b\uff1f\n4.\u4f7f\u7528\u7cfb\u7edf\u6570\u636e\u4fe1\u606f\uff08\u6570\u636e\u67e5\u8be2\uff0c\u751f\u6210\u62a5\u8868\uff09\u7edf\u8ba1\u4e66\u8fd8\u6709\u591a\u5c11\u672c\uff1f\u5b66\u751f\u501f\u8bfb\u60c5\u51b5\n5.\u6570\u636e\u5907\u4efd\u548c\u6062\u590d\uff08\u6570\u636e\u5b89\u5168\uff09\u4e66\u7c4d\u8d44\u6599\u5907\u4efd\u3002\n\n\n1\u3001\u8868\u7a7a\u95f4\u7ba1\u7406\n\t\t1\u3001\u8868\u7a7a\u95f4\u7684\u64cd\u4f5c\u6709\uff1a\u6570\u636e\u6587\u4ef6(datafile)\u3001\u6570\u636e\u6587\u4ef6\u7684\u5927\u5c0f(size)\u3001\u6570\u636e\u6587\u4ef6\u6570\u636e\u586b\u6ee1\u540e\u8981\u81ea\u52a8\u6269\u5c55(autoextend on next)\u3002\u6559\u6750\u7b2c49\u9875\n\t\t2\u3001\u8bed\u6cd5\u683c\u5f0f\uff1a\n\t\t\t\u901a\u7528\uff1acreate \u5bf9\u8c61\u7c7b\u578b \u5bf9\u8c61\u540d  \u64cd\u4f5c\u6216\u5c5e\u6027;\n\t\t\t\u5177\u4f53\u8bed\u6cd5\u7ed3\u6784\uff1a\n\t\t\t create tablespace sudent --\u8868\u7a7a\u95f4\u540d \n\t\t\t datafile '\u6570\u636e\u6587\u4ef6\u5b58\u653e\u7684\u8def\u5f84\\\u6570\u636e\u6587\u4ef6\u540d.dbf' --\u8868\u7a7a\u95f4\u6587\u4ef6\u5b58\u653e\u8def\u5f84 \n\t\t\t size XXm --\u8868\u7a7a\u95f4\u9ed8\u8ba4\u521d\u59cb\u5927\u5c0f\n\t\t\t autoextend on  --\u7528\u4e8e\u8bbe\u7f6e\u81ea\u52a8\u589e\u957f\uff0c\u5982\u679c\u5b58\u50a8\u8d85\u8fc7\u521d\u59cb\u503c\u4e4b\u540e\uff0c\u5f00\u59cb\u81ea\u52a8\u6269\u5c55\n\t\t\t next XXm --\u7528\u4e8e\u8bbe\u7f6e\u6269\u5c55\u7684\u7a7a\u95f4\u5927\u5c0f\n\t\t\t maxsize unlimited \u6216\u8005XXm;--\u6700\u5927\u503c\u65e0\u9650\u5236\n\n2\u3001\u521b\u5efa\u7528\u6237\u65f6\uff0c\u8ddf\u7528\u6237\u6709\u5173\u7684\u64cd\u4f5c\uff08\u5c5e\u6027\uff09\u6709\u54ea\u4e9b\uff1f\n\tcreate \u5bf9\u8c61\u7c7b\u578b \u5bf9\u8c61\u540d \u64cd\u4f5c;\n\tcreate user \u7528\u6237\u540d \u64cd\u4f5c;\n\t(1)\u3001\u5bc6\u7801->\u8ba4\u8bc1\u65b9\u5f0f\uff08identified by\uff09\n\t(2)\u3001\u9ed8\u8ba4\u8868\u7a7a\u95f4->default tablespace  ->\u673a\u623f\n\t(3)\u3001\u4f7f\u7528\u8868\u7a7a\u95f4\u5927\u5c0f ->quota          ->\u673a\u4f4d\n\t(4)\u3001\u8d44\u6e90\u9650\u5236\uff08\u6982\u8981\u6587\u4ef6\uff09 -> profile\n\t(5)\u3001\u8d26\u53f7\u72b6\u6001(account)->lock \u6216 unlock\n\n\t\u8bed\u6cd5\u683c\u5f0f\uff1a\n\tcreate user \u7528\u6237\u540d \n\tidentified by \u5bc6\u7801\n\tdefault tablespace \u8868\u7a7a\u95f4\n\tquota \u4f7f\u7528\u8868\u7a7a\u95f4\u5927\u5c0f on  \u8868\u7a7a\u95f4 \n\tprofile \u6982\u8981\u6587\u4ef6\n\taccount lock \u6216 unlock;\n\n\n\n\n3\u3001\u6743\u9650\u7ba1\u7406\n\t\u5206\u4e24\u7c7b\uff1a\u7cfb\u7edf\u6743\u9650\u3001\u5bf9\u8c61\u6743\u9650\n\t\n\tgrant \u6743\u9650 to \u7528\u6237;\n\trevoke \u6743\u9650 from \u7528\u6237;\n\t\n\t\u6743\u9650\u59d4\u6258\uff1a\n\t\n\tgrant \u6743\u9650 to \u7528\u6237 with admin option;\n\t\n\t\u5bf9\u8c61\u6743\u9650\uff1agrant \u6743\u9650 on \u5176\u4ed6\u7528\u6237.\u5bf9\u8c61\u540d to \u7528\u6237;\n\t\u4f8b\u5b50\uff1a\n\tgrant select,insert,update,delete on hr.employee to \u7528\u6237;\n\n\n\n4\u3001\u89d2\u8272\uff08role\uff09\n\t\u4e00\u7ec4\u6743\u9650\u7684\u96c6\u5408\uff0c\u4fbf\u4e8e\u7ba1\u7406\u6743\u9650\n\t(1)\u521b\u5efa\u89d2\u8272  ->\u751f\u6210\u653e\u6743\u9650\u7684\u888b\u5b50\n\t\tcreate role \u89d2\u8272\u540d;\n\t(2)\u628a\u6743\u9650\u653e\u5165\u89d2\u8272\u4e2d ->\u628a\u6743\u9650\u653e\u5230\u888b\u5b50\u4e2d\n\t\tgrant \u6743\u9650 to \u89d2\u8272;\n\t(3)\u628a\u6743\u9650\u4ece\u89d2\u8272\u4e2d\u64a4\u9500 ->\u628a\u6743\u9650\u4ece\u888b\u5b50\u4e2d\u62ff\u8d70\n\t\trevoke \u6743\u9650 from \u89d2\u8272;\t\n\t(4)\u628a\u89d2\u8272\uff08\u888b\u5b50\uff09\u7ed9\u7528\u6237(\u6388\u6743)\n\t\tgrant \u89d2\u8272 to \u7528\u6237;\n\t(5)\u628a\u89d2\u8272\uff08\u888b\u5b50\uff09\u4ece\u7528\u6237\u4e2d\u64a4\u9500(\u53d6\u6d88\u6743\u9650)\n\t\trevoke \u89d2\u8272 from \u7528\u6237;\n\t\n\t\n5\u3001\u6982\u8981\u6587\u4ef6\uff08profile\uff09\u7684\u521b\u5efa\uff0c\u9650\u5236limit\n\t \uff081\uff09create \u5bf9\u8c61\u7c7b\u578b \u5bf9\u8c61\u540d \u64cd\u4f5c;\n\t\n                create profile \u6982\u8981\u6587\u4ef6\u540d\n\tlimit\n\tsessions_per_user --\u8fde\u63a5\u6700\u5927\u56de\u8bdd\u6570\n\tconnect_time \u8fde\u63a5\u6d3b\u52a8\u6700\u5927\u65f6\u95f4(\u5206)\n\tidle_time --\u4e0d\u64cd\u4f5c\u7a7a\u95f2\u6700\u5927\u65f6\u95f4(\u5206)\n\tfailed_login_attempts --\u5c1d\u8bd5\u8f93\u9519\u53e3\u4ee4\u6b21\u6570\n\tpassword_lock_time --\u9501\u5b9a\u65f6\u95f4\uff08\u5929\uff09\n\tpassword_life_time --\u5bc6\u7801\u6709\u6548\u671f\uff08\u5929\uff09\n\tpassword_grace_time \u5bbd\u9650\u5929\u6570\uff08\u5929\uff09\n                password_reuse_time \u80fd\u591f\u4f7f\u7528\u91cd\u590d\u5bc6\u7801\u95f4\u9694\u5929\u6570;\n\t\n               \uff082\uff09\u628a\u6982\u8981\u6587\u4ef6\u914d\u7f6e\u7ed9\u7528\u6237\n              alter user \u7528\u6237\u540d profile \u6982\u8981\u6587\u4ef6\u540d \uff1b\n\n               \uff083\uff09\u6fc0\u6d3b\u542f\u7528\u6982\u8981\u6587\u4ef6\n              alter system set resource_limit=true;\n6\u3001\u521b\u5efa\u8868\n(1) \u8868\u7684\u64cd\u4f5c\uff1a\u5b57\u6bb5(\u5217)\u3001\u6570\u636e\u7c7b\u578b\u53ca\u957f\u5ea6\u3001\u7ea6\u675f\u3002\n\t(2) \u8bed\u6cd5\u683c\u5f0f\n\t\t\u901a\u7528\uff1a\n\t\t\tcreate \u5bf9\u8c61\u7c7b\u578b \u5bf9\u8c61\u540d \u64cd\u4f5c;\n\t\t\u5177\u4f53\uff1a\n\t\t\tcreate table \u8868\u540d\n\t\t\t(\n\t\t\t\t\u52171 \u6570\u636e\u7c7b\u578b \u5217\u7ea6\u675f1,\n\t\t\t\t....\n\t\t\t\t\u5217n \u6570\u636e\u7c7b\u578b \u5217\u7ea6\u675fn,\n\n\t\t\t\t\u8868(\u884c) \u7ea6\u675f1,\n\t\t\t\t...\n\t\t\t\t\u8868(\u884c)\u7ea6\u675fn\n\t\t\t);\n\n(2)\u63d2\u5165\u6570\u636e\n    \u8bed\u6cd5\u683c\u5f0f\uff1a\n\t\tinsert into \u8868\u540d(\u52171,\u52172,...,\u5217n) \n\t\t          values(\u5217\u503c1,\u5217\u503c2,...,\u5217\u503cn); \n\t\t\t\t  \n\t\tinsert into \u8868\u540d values(\u5217\u503c1,\u5217\u503c2,...,\u5217\u503cn); \n\n\n7\u3001\u67e5\u8be2\n\uff081\uff09\u8bed\u6cd5\u683c\u5f0f\uff1a\n\tselect \u663e\u793a\u7684\u5217\u6216\u8868\u8fbe\u5f0f(Excel\u7684\u5217)               \u7ea6\u675f\u663e\u793a\u7684\u5217\uff0c\u5217\u4e4b\u95f4\u7528\u9017\u53f7\u5206\u9694\n\tfrom \u663e\u793a\u7684\u4fe1\u606f\u6765\u6e90\u4e8e\u54ea\u91cc(Excel\u8868\u5355)             \u5982\u679c\u6709\u591a\u4e2a\u8868\uff0c\u8868\u4e4b\u95f4\u7528\u9017\u53f7\u5206\u9694\n\twhere \u6761\u4ef6                                         \u7ea6\u675f\u663e\u793a\u7684\u884c\n\tgroup by \u5206\u7c7b\u7edf\u8ba1\u7684\u5217 having \u7edf\u8ba1\u51fd\u6570\u4f5c\u4e3a\u6761\u4ef6      \u5982\u679c\u6709\u591a\u4e2a\u7edf\u8ba1\u5217\uff0c\u5217\u4e4b\u95f4\u7528\u9017\u53f7\u5206\u9694\n\torder by \u6392\u5e8f\u52171 asc\u6216desc,\u6392\u5e8f\u52172 asc\u6216desc,...;\n\n\t\u63d0\u793a\uff1aselect\u8bed\u53e5\u5fc5\u987b\u6709from\u5b50\u53e5\uff0c\u5982\u679c\u4e0d\u80fd\u786e\u5b9a\u663e\u793a\u7684\u4fe1\u606f\u6765\u6e90\u4e8e\u67d0\u5f20\u8868\uff0c\u5219\u4f7f\u7528\u4f2a\u8868dual\u4ee3\u66ff\u3002\n\n\uff082\uff09\u4e66\u5199\u67e5\u8be2\u8bed\u53e5\u5e38\u7528\u7684\u6b65\u9aa4\uff1a\n\t (1) \u786e\u5b9a\u663e\u793a\u7684\u5217 =>\u89e3\u51b3select\u5b50\u53e5\n\t (2) \u786e\u5b9a\u663e\u793a\u7684\u5217\u662f\u6765\u81ea\u4e8e\u54ea\u5f20\u8868 =>from\u5b50\u53e5\n\t (3) \u786e\u5b9a\u6761\u4ef6 =>where\u5b50\u53e5\n\t (4) \u786e\u5b9a\u6761\u4ef6\u4e2d\u662f\u5426\u6709\u6765\u81ea\u53e6\u5916\u7684\u8868\u7684\u5217 =>from \u5b50\u53e5\n\t (5) \u5982\u679cfrom\u5b50\u53e5\u540e\u6709\u591a\u5f20\u8868\uff0c\u5219\u8981\u52a0\u4e0a\u8868\u4e4b\u95f4\u7684\u8fde\u63a5\u5173\u7cfb(\u5916\u952e)\u3002\n\t \n8\u3001\u6570\u636e\u5907\u4efd\n 1.\u5728\u8ba1\u7b97\u673a\u4e0a\u521b\u5efa\u76ee\u5f55d:\\dump,\n\n   2.\u5e76\u628aDIRECTORY\u5bf9\u8c61\u6307\u5b9a\u5230d:\\dump\u4e2d\u3002\n   create directory dump_dir as 'd:\\dump';\n\n   2.\u7ed9\u7528\u6237\u6388\u6743\u53ef\u4ee5\u8bfb\u3001\u5199\u8be5\u76ee\u5f55\u7684\u6743\u9650\u3002\n   grant read,write on directory dump_dir to scott\uff1b\n\n\n\n\u5bfc\u51fa\uff08expdp\uff09\u8bed\u6cd5\u683c\u5f0f\uff1a\n\n   1.expdp \u7528\u6237\u540d\/\u5bc6\u7801  \u5bfc\u51fa\u7528\u6237\u7684\u8d26\u53f7\u548c\u5bc6\u7801\uff0c\u653e\u5728\u7b2c\u4e00\u4e2a\u3002\n   2.directory=\u76ee\u5f55\u540d\u79f0  \u8f93\u5165\u6570\u636e\u5b58\u653e\u7684\u903b\u8f91\u76ee\u5f55\u540d\u79f0\u3002\n   3.dumpfile=\u5907\u4efd\u6570\u636e\u540d\u79f0  \u6570\u636e\u5bfc\u51fa\u4e4b\u540e\u7684\u6587\u4ef6\u540d\u79f0\uff08\u540e\u7f00.dmp\uff09\n   4.\u5bfc\u51fa\u5bf9\u8c61\u53c2\u6570 \u5bfc\u51fa\u6570\u636e\u7684\u5bf9\u8c61\u53c2\u6570\u9009\u62e9\u3002\n    4.1 tables=\u8868\u540d \u591a\u4e2a\u8868\u7528\u2018\uff0c\u2019\u5206\u9694\u5f00\uff1b query=\u2018\u7b5b\u9009\u6761\u4ef6\u2019\n    4.2 schemas=\u7528\u6237\u540d \u591a\u4e2a\u7528\u6237\u2018\uff0c\u2019\u5206\u9694\u5f00\n    4.3 tablespaces=\u8868\u7a7a\u95f4\u540d\n    4.4 full\u5168\u90e8\u7528\u6237\u5bf9\u8c61\n\t\n\t\n\u5bfc\u5165\uff08impdp\uff09\u8bed\u6cd5\u683c\u5f0f\uff1a\n   1.impdp \u7528\u6237\u540d\/\u5bc6\u7801  \u5bfc\u5165\u7528\u6237\u7684\u8d26\u53f7\u548c\u5bc6\u7801\uff0c\u653e\u5728\u7b2c\u4e00\u4e2a\u3002\n   2.directory=\u76ee\u5f55\u540d\u79f0  \u6570\u636e\u5b58\u653e\u7684\u903b\u8f91\u76ee\u5f55\u540d\u79f0\u3002\n   3.dumpfile=\u5907\u4efd\u6570\u636e\u540d\u79f0  \u9009\u62e9\u5bfc\u5165\u6570\u636e\u7684\u6587\u4ef6\u540d\u79f0\uff08\u540e\u7f00.dmp\uff09\n   4.\u5bfc\u5165\u5bf9\u8c61\u53c2\u6570 \u5bfc\u5165\u6570\u636e\u7684\u5bf9\u8c61\u53c2\u6570\u5165\u62e9\u3002\n    4.1 tables=\u8868\u540d \u591a\u4e2a\u8868\u7528\u2018\uff0c\u2019\u5206\u9694\u5f00\uff1b\n    4.2 schemas=\u7528\u6237\u540d \u591a\u4e2a\u7528\u6237\u2018\uff0c\u2019\u5206\u9694\u5f00\n    4.3 tablespaces=\u8868\u7a7a\u95f4\u540d\n  5.\u4e0d\u540c\u7528\u6237\u4e4b\u95f4\u5bfc\u5165\uff1aremap_schema=\u5bfc\u51fa\u7528\u6237\u540d\uff1a\u5bfc\u5165\u7528\u6237\u540d<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u63d0\u793a\uff1a\u672a\u7ed3\u675f\uff0c\u540e\u9762\u8fd8\u4f1a\u66f4\u65b0 \u8bf4\u660e\uff1aOracle\u548cNavicat\u6570\u636e\u5e93\u51e0\u4e4e\u90fd\u53ef\u4ee5\u901a\u7528(\u770b\u597d\u5907\u6ce8\u5373\u53ef)\u3002\u5982\u6709\u9519\u8bef\u6216\u9700\u8981\u5e2e\u52a9\u7684\u8bf7\u8054\u7cfb\u535a\u4e3bQQ\/\u5fae\u4fe1\uff1a3132876589 1\u3001\u521b\u5efa\/\u5220\u9664\u8868\u6307\u4ee4\uff0c\u4ee5\u8868stu_inf\u4e3a\u53c2\u8003 \u5c06\u5458\u5de5id\u4e3a3\u7684\u5458\u5de5\u5de5\u8d44\u589e\u52a0100\u7684sql\u8bed\u53e5 2\u3001\u4e3a\u8868stu_inf\u589e\u52a0\u5b57\u6bb5age\uff0c\u6570\u636e\u7c7b\u578bnumber\uff083\uff09 3\u3001\u4fee\u6539\u8868stu_inf\u5b57\u6bb5xm\uff0c\u6570\u636e\u7c7b\u578b\u6539\u6210VARCHAR2\uff0820\uff09 4 […]<\/p>\n","protected":false},"author":1,"featured_media":199,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-206","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql"],"_links":{"self":[{"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/posts\/206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/comments?post=206"}],"version-history":[{"count":40,"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/posts\/206\/revisions"}],"predecessor-version":[{"id":329,"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/posts\/206\/revisions\/329"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/media\/199"}],"wp:attachment":[{"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/media?parent=206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/categories?post=206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.nhl520.cn\/index.php\/wp-json\/wp\/v2\/tags?post=206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}