An Oracle server is built, and mspetshop is used to connect to Oracle. After installation, the following error is prompted during browsing:
[System. Data. oracleclient requires Oracle client software version 8.1.7]
I don't know what the scam is. I Googled it. It turned out to be the installation directory.Authenticat
Explain the Oracle SQLPlus runtime environment, common Oracle System Function instances, and sqlplus instances
1. Introduction to the SET command
Set command sets the running environment of SQL * Plus. The syntax FORMAT OF THE set command is:
SET system_variable value
The system_variable parameter represents the variable name, and the value parameter represents
Environment:Source Server:VM7.14 rhel5.5-32 Oracle 11.2.0.0g172.16.3.202Target ServerVM7.14 rhel5.5-32 oracle 11.2.0.0g172.16.3.204
Source Server
1. Add verification tables and data to the database:
[Oracle @ ebs01 ~] $ Sqlplus "/as sysdba"
SQL * Plus: Release 11.2.0.1.0 Production on Sun Jun 10 13:09:43 2012
Copyright (c) 1982,200 9,
1. Application Development)
SQL * Plus E: \ oracle \ ora81 \ bin \ sqlplusw. exe
2. database administration)
Database Configuration assistant database configuration ASSISTANT: Create, configure, and delete Databases
DBA studio integrates multiple database tools into one applicationProgram. DBA studio manages the following objects:
Examples: including startup, shutdown, and routine routines.
Solution: includes tables, indexes, and oracle8 o
Data dictionary table for Oracle users, roles, and permissions (System and object permissions), and oracle dictionary
1. Three dictionary tables
1.1 users
Select * from dba_users;
Select * from all_users;
Select * from user_users;
1.2 roles
Select * from dba_roles;
1.3 Permissions
System permissions and object permissi
Recently, because of the use of some information about the system, simply collected a little about the Oracle database system of some system tables, functions, etc., convenient for later viewing. To be added later.Original address: 53189513;"View some tables and other structure information for a user's subordinates" Vi
Environment: DB version Oracle database 12c Enterprise Edition release 12.2.0.1.0-64bit ProductionExperiment Preparation:1.--Database Archiving modeSql> select Name,log_mode from V$database;NAME Log_mode--------- ------------ANDYCDB ARCHIVELOG > Database archiving mode2.--Log In the PDB creates the experimental table space with the user[Email protected] ~]$ sqlplus sys/[email protected]:1521/pdb01 as SysdbaSql>Create tablespace bbb logging datafile '/
firewall Stop: Systemctl Stop Firewalld.service Disable boot: systemctl disable Firewalld.service Start: Systemctl start Firewalld.service Boot start: Systemctl enable Firewalld.service 1.4 Setting the system time Set Hardware time manually Hwclock--set--date= "05/1/2015 19:24" Time format: Month/day/year space: minutes: seconds --------------- Write hardware time to system time Hwclock--hctosys Clock--
ORACLEprimary system tables and system views1.system TablesORACLEthe system parameters of the database are stored in the database and can beSQLPLUS, to the userSYSto query. A few important tables or views are as follows:V$controlfile: Control the information of the file;V$datafile: Information of data files;V$log: Log
. 2. Directly decrypt the Oracle login key that is encrypted in TNS please refer to An Huaqin and database Security Lab for the article "See Recruit, Break Oracle password". 3. Through buffer overflow, the Oracle local operating system CONTROL permission is obtained when Oracle
Tags:linuxcentosoracle installation configuration /** * CENTOS-6.4-DVD system installed Oracle-11.2.0.4 *------------------------------------------------------------------------ ----------------------------------------------* "Preface" * was originally installed in the centos-6.4-minimal-64bit system oracle-11.2.0.4
Shared pool.
SQL> alter system set "_ shared_pool_reserved_pct" = 10 scope = spfile;Reduce the minimum request size of the "reserved pool.
SQL> alter system set "_ shared_pool_reserved_min_alloc" = 4000 scope = spfile;Reduce the number of sub-pools in the Shared Pool to two.
SQL> alter system set "_ kghdsidx_count" = 2 scope = spfile;Shut down the master-slave n
1.1 symptom description
Abnormal power failure: the database data file status changes from ONLINE to RECOVER. The system displays the following information:
SQL> select file_name, tablespace_name, online_status from dba_data_files;
FILE_NAME
--------------------------------------------------------------------------------
TABLESPACE_NAME ONLINE_
------------------------------ -------
/enip/oracle_data/CBS_LOG_IDX
CBS_LOG_IDX RECOVER1.2 possible causes
Oracle 8.1.6 for win2000 system file explanation
System Environment:
1. Operating System: Windows 2000
2. Database: Oracle 8i R2 (8.1.6) for NT Enterprise Edition
3. installation path: C: \
situation of the table space that the user has permission to manipulate
SELECT * from User_tablespaces;
--View the remaining space in the table space
SELECT tablespace_name, sum (bytes), SUM (blocks)
From Dba_free_space
GROUP by Tablespace_name;
--View the table space data file and its location
SELECT * from Dba_data_files;
--View data file details
SELECT * from V$datafile
"User, role, and permission information"View all roles: Dba_roles
View user roles: User_role_privs, Dba_role_pri
Tags: blog http io os ar for strong SP fileBrief introductionBefore also installed under Linux Oralce, can be a daze each time, because the brain blank, online casually see a document on the direct copy, finally made a mess, although installed, but the chaos is very, in recent days because of resignation, handover time and install Oracle, found that the old encountered errors, Cause can not be loaded, through this time I have a good study of the next
If a problem occurs in our operating system, how should we restore the ORACLE database after the system is reinstalled? The following describes how to restore the ORACLE database after reinstalling the system. We often use the ORACLE
Features of Oracle architecture data
Content of Oracle architecture data
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Features of Oracle architecture data
This document emphasizes practicality. This document is practical in terms of content selection, emphasizing the main line of
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