效果图网站排行榜前十名,wordpress列表页,制作公众号的平台,双语企业网站源码解决方式#xff1a; alter session set _ORACLE_SCRIPTtrue;
alter session set containerPDBORCL;原因#xff1a;查官方文档得知“试图创建一个通用用户#xff0c;必需要用C##或者c##开头”#xff0c;这时候心里会有疑问#xff0c;什么是common user alter session set _ORACLE_SCRIPTtrue;
alter session set containerPDBORCL;原因查官方文档得知“试图创建一个通用用户必需要用C##或者c##开头”这时候心里会有疑问什么是common user不管先建成功了再说 create C##user test identifed by test; 创建成功 CDB和PDB是ORACLE 12C一个很亮的新特性,由于他们的引入导致传统的ORACLE数据库管理理念不少发生了改变,这里列举了部分最基本的cdb和pdb管理方式 cdb和pdb关系图 ORACLE 12C版本 SQL select * from v$version; BANNER CON_ID -------------------------------------------------------------------------------- ---------- Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production 0 PL/SQL Release 12.1.0.1.0 - Production 0 CORE 12.1.0.1.0 Production 0 TNS for Linux: Version 12.1.0.1.0 - Production 0 NLSRTL Version 12.1.0.1.0 - Production 0 启动关闭pdb SQL startup ORACLE instance started. Total System Global Area 597098496 bytes Fixed Size 2291072 bytes Variable Size 272632448 bytes Database Buffers 314572800 bytes Redo Buffers 7602176 bytes Database mounted. Database opened. SQL select con_id,dbid,NAME,OPEN_MODE from v$pdbs; CON_ID DBID NAME OPEN_MODE ---------- ---------- ------------------------------ ---------- 2 4048821679 PDB$SEED READ ONLY 3 3313918585 PDB1 MOUNTED 4 3872456618 PDB2 MOUNTED SQL alter PLUGGABLE database pdb1 open; Pluggable database altered. SQL select con_id,dbid,NAME,OPEN_MODE from v$pdbs; CON_ID DBID NAME OPEN_MODE ---------- ---------- ------------------------------ ---------- 2 4048821679 PDB$SEED READ ONLY 3 3313918585 PDB1 READ WRITE 4 3872456618 PDB2 MOUNTED SQL alter PLUGGABLE database pdb1 close; Pluggable database altered. SQL select con_id,dbid,NAME,OPEN_MODE from v$pdbs; CON_ID DBID NAME OPEN_MODE ---------- ---------- ------------------------------ ---------- 2 4048821679 PDB$SEED READ ONLY 3 3313918585 PDB1 MOUNTED 4 3872456618 PDB2 MOUNTED SQL alter PLUGGABLE database all open; Pluggable database altered. SQL select con_id,dbid,NAME,OPEN_MODE from v$pdbs; CON_ID DBID NAME OPEN_MODE ---------- ---------- ------------------------------ ---------- 2 4048821679 PDB$SEED READ ONLY 3 3313918585 PDB1 READ WRITE 4 3872456618 PDB2 READ WRITE SQL alter PLUGGABLE database all close; Pluggable database altered. SQL select con_id,dbid,NAME,OPEN_MODE from v$pdbs; CON_ID DBID NAME OPEN_MODE ---------- ---------- ------------------------------ ---------- 2 4048821679 PDB$SEED READ ONLY 3 3313918585 PDB1 MOUNTED 4 3872456618 PDB2 MOUNTED SQL alter session set containerpdb1; Session altered. SQL startup Pluggable Database opened. SQL select con_id,dbid,NAME,OPEN_MODE from v$pdbs; CON_ID DBID NAME OPEN_MODE ---------- ---------- ------------------------------ ---------- 3 3313918585 PDB1 READ WRITE pdb的管理可以在cdb中进行也可以在pdb中进行,如果是cdb中进行,需要PLUGGABLE关键字,如果是pdb中直接和普通数据库一样 登录pdb [oraclexifenfei ~]$ lsnrctl status LSNRCTL for Linux: Version 12.1.0.1.0 - Production on 12-MAY-2013 08:07:02 Copyright (c) 1991, 2013, Oracle. All rights reserved. Connecting to (DESCRIPTION(ADDRESS(PROTOCOLTCP)(HOSTxifenfei)(PORT1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 12.1.0.1.0 - Production Start Date 11-MAY-2013 18:30:54 Uptime 0 days 13 hr. 36 min. 8 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/grid/product/12.1/network/admin/listener.ora Listener Log File /u01/app/grid/diag/tnslsnr/xifenfei/listener/alert/log.xml Listening Endpoints Summary... (DESCRIPTION(ADDRESS(PROTOCOLipc)(KEYEXTPROC1521))) (DESCRIPTION(ADDRESS(PROTOCOLtcp)(HOSTxifenfei)(PORT1521))) (DESCRIPTION(ADDRESS(PROTOCOLtcps)(HOSTxifenfei)(PORT5500)) (Security(my_wallet_directory/u01/oracle/12.1/db_1/admin/cdb/xdb_wallet))(PresentationHTTP)(SessionRAW)) Services Summary... Service ASM has 1 instance(s). Instance ASM, status READY, has 1 handler(s) for this service... Service cdb has 1 instance(s). Instance cdb, status READY, has 1 handler(s) for this service... Service cdbXDB has 1 instance(s). Instance cdb, status READY, has 1 handler(s) for this service... Service pdb1 has 1 instance(s). Instance cdb, status READY, has 1 handler(s) for this service... Service pdb2 has 1 instance(s). Instance cdb, status READY, has 1 handler(s) for this service... The command completed successfully [oraclexifenfei ~]$ tnsping pdb1 TNS Ping Utility for Linux: Version 12.1.0.1.0 - Production on 12-MAY-2013 08:07:09 Copyright (c) 1997, 2013, Oracle. All rights reserved. Used parameter files: Used TNSNAMES adapter to resolve the alias Attempting to contact (DESCRIPTION (ADDRESS (PROTOCOL TCP)(HOST xifenfei) (PORT 1521)) (CONNECT_DATA (SERVER DEDICATED) (SERVICE_NAME pdb1))) OK (20 msec) [oraclexifenfei ~]$ sqlplus sys/xifenfeipdb1 as sysdba SQL*Plus: Release 12.1.0.1.0 Production on Sun May 12 08:08:02 2013 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production With the Partitioning, Automatic Storage Management, OLAP, Advanced Analytics and Real Application Testing options SQL show con_name; CON_NAME ------------------------------ PDB1 [oraclexifenfei ~]$ sqlplus / as sysdba SQL*Plus: Release 12.1.0.1.0 Production on Sun May 12 08:09:14 2013 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production With the Partitioning, Automatic Storage Management, OLAP, Advanced Analytics and Real Application Testing options SQL alter session set containerpdb1; Session altered. SQL show con_name; CON_NAME ------------------------------ PDB1 pdb可以通过alter session container进入也可以直接通过tns方式登录 创建用户 SQL show con_name; CON_NAME ------------------------------ CDB$ROOT SQL select con_id,dbid,NAME,OPEN_MODE from v$pdbs; CON_ID DBID NAME OPEN_MODE ---------- ---------- ------------------------------ ---------- 2 4048821679 PDB$SEED READ ONLY 3 3313918585 PDB1 READ WRITE 4 3872456618 PDB2 MOUNTED SQL create user xff identified by xifenfei; create user xff identified by xifenfei * ERROR at line 1: ORA-65096: invalid common user or role name SQL !oerr ora 65096 65096, 00000, invalid common user or role name // *Cause: An attempt was made to create a common user or role with a name // that wass not valid for common users or roles. In addition to // the usual rules for user and role names, common user and role // names must start with C## or c## and consist only of ASCII // characters. // *Action: Specify a valid common user or role name. // SQL create user c##xff identified by xifenfei; User created. SQL SELECT USERNAME,CON_ID,USER_ID FROM CDB_USERS WHERE USERNAMEC##XFF; USERNAME CON_ID USER_ID ---------- ---------- ---------- C##XFF 1 103 C##XFF 3 104 SQL alter session set containerpdb1; Session altered. SQL show con_name CON_NAME ------------------------------ PDB1 SQL create user xff identified by xifenfei; User created. SQL create user c##abc identified by xifenfei; create user c##abc identified by xifenfei * ERROR at line 1: ORA-65094: invalid local user or role name 创建用户默认的是containerall,在cdb中只能创建全局用户(c##开头),会在cdb和所有的pdb中创建该用户(但是pdb中的全局用户需要另外授权才能够在pdb中访问)。在pdb中只能创建的用户为本地用户 用户授权 SQL grant connect to c##xff; Grant succeeded. SQL select GRANTEE,con_id from cdb_ROLE_PRIVS where GRANTED_ROLECONNECT AND GRANTEEC##XFF; GRANTEE CON_ID ------------------------------ ---------- C##XFF 1 SQL grant resource to c##xff containerall; Grant succeeded. SQL select GRANTEE,con_id from cdb_ROLE_PRIVS where GRANTED_ROLERESOURCE AND GRANTEEC##XFF; GRANTEE CON_ID ------------------------------ ---------- C##XFF 1 C##XFF 3 用户授权默认情况下是只会给当前container,在cdb中也可以指定containerall,对所有open的pdb且存在该用户都进行授权 修改参数 SQL alter system set open_cursors500 containerall; System altered. SQL conn sys/xifenfeipdb1 as sysdba Connected. SQL show parameter open_cursors; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ open_cursors integer 500 SQL alter system set open_cursors100; alter system set open_cursors100 * ERROR at line 1: ORA-01219: database or pluggable database not open: queries allowed on fixed tables or views only SQL alter database open; Database altered. SQL alter system set open_cursors100; System altered. SQL show parameter open_cursors; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ open_cursors integer 100 SQL conn / as sysdba Connected. SQL show parameter open_cursors; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ open_cursors integer 500 这里可以看到在cdb中修改,pdb会继承进去;如果在pdb中修改会覆盖pdb从cdb中继承的参数含义
