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Today, a netizen to find me to help him optimize his database of SQL, customer service reflects the SQL ran for a long time, ran for 12 hours, and finally ran out of ORA-01555, with an error ended this slow SQL life. Find me to help him optimize, OK, bounden duty.They're over there. The
Server A installs the Oracle 12c 64-bit database, and Machine B accesses the Oracle database.Get ready:1. Download Instantclient-basic-nt-12.1.0.2.0.zip,:http://pan.baidu.com/s/1c04lzso2. Download Plsql,:http://pan.baidu.com/s/1bnhkdojInstallation steps1. Installing the Orcle ClientUnzip the downloaded instantclient-ba
Tags: http data div. html work htm TT databaseIn the Oracle GoldenGate 12c, support is available for some of the most recent databases, such as SQL Server 2012/2014, and of course 12c is also supported for SQL Server 2008.The main new features are:
The capture process
/bin # #支持直接使用sqlplus命令4. Configure system parameters: Su to root user, execute/tmp/cvu_12.1.0.2.0_oracle/runfixup.sh5. Install the required software:6. Script to run the requirements:/u01/app/orainventory/orainstroot.sh and/u01/app/oracle/product/12.1.0/dbhome_1/root.sh7. Set the SYS and system password (if you select "Install Oracle software only" at the time of installation, there is no step to create th
Use Windows Console (program | run, enter CMD to open). Under command line, enter Sqlplus/nolog, carriage return, the sql> command prompt appears, and then enter the command in the following order:Sql>conn/as SYSDBASql>alter user Scott account unlock;Sql>disconnectSql>conn Scott/tiger;The password is now expired, please enter a new password. Then enter two new defined passwords to enter the password separat
Tags: des style blog http color io os using ARThis series of articles is a summary of some of the new features of Oracle database 12c, including database management, RMAN, high availability, and performance tuning, Syed Jaffer Hussain.1. Online renaming and repositioning of active data filesUnlike previous versions, th
In addition to using DBCA to delete the Oracle 12C database, we can also use the drop database Command to delete it.This deletion method is very simple, but must meet the following two requirements:1. The database must be in the mount State and cannot be in the open state;2.
128net.ipv4.ip_local_port_range = 9000 65500net.core.rmem_default = 262144net.core.rmem_max = 4194304net.core.wmem_default = 262144net.core.wmem_max = 1048576Modifications are still valid for reboots. In SuSE Linux Enterprise Server Systems, the following command allows the system to read the/etc/sysctl.conf file when it restarts:# /sbin/chkconfig boot.sysctl on
Type the following command to change the current value of the kernel parameter:# /sbin/sysctl -pCheck the output to verify that th
opened.Sql> select Name,open_mode from V$pdbs;NAME Open_mode------------------------------ ----------Pdb$seed READ onlyPDBYCR MountedPDB2 READ WRITEImplemented PDB2 self-booting, you can start different PDB by modifying the SQL statement in the trigger script or implement the self-boot of all PDB, the script is as follows:CREATE TRIGGER OPEN_PDB_PDB2After STARTUPOn DATABASEBEGINEXECUTE IMMEDIATE ' alter pluggable
Tags: RAC nts ges ASE host Technology One height issue1. Visit Oracle Website: https://www.oracle.com/index.html, download Oracle Database 12c Release 1(Note: File1 and File2 are to be downloaded!!) Otherwise post-installation will report a bunch of errors, refer to: http://www.2cto.com/
/gaoERROR:Ora-01045:user C # #ERIC lacks CREATE SESSION privilege; Logon denied----have no permissions, we can give it permission individually, or we can assign a role to it.Warning:you is no longer connected to ORACLE.Sql> Conn/as SYSDBAConnected.Sql> Grant DBA to C # #eric Container=all; ---to its DBA role, with a role scope covering all containersGrant succeeded.Sql> Conn C # #eric/gaoConnected. ---connection succeededTo switch containers:Start the container
Oracle has been releasing Oracle for 12C for some time and Oracle has only 64-bit releases and no 32-bit version. Our system installation environment is CentOS 6.5 x86_64. 1. Install Oracle Dependency PackModify the Yum configuration and install 32-bit and 64-bit RPM by defa
Step tutorial on installing Oracle 12c Release Database in win10, win1012c
Install Oracle 12c Release Database in win10
In general, download and decompress the package and go to the official website.
Double-click to sta
1Scott0 2Janesql>The value of the hidden column ora_archive_state is 0 by default, indicating that row is active. A value of non 0 o'clock indicates that the row is inactive.Manually modify active to inactiveset ora_archive_state=1where emp_id=1; SQL> commit;By default , the inactive row is not visible for sessions and applications: (equivalent to alter session set row archiv
follows:SQL> Alter system set event= ‘28401 trace name context off‘ scope=spfile ;Summary:About a large number of concurrent error passwords connecting to the database can cause the database to hang, or cause performance problems, the impact on the database is very large, recently encountered such a case. Of course, Oracle
Explore Oracle The database upgrade seven11gR2 to 12c Insert after upgrade complete PDBObjective: fromOracle 12cat the beginning, the concept of container database is introduced, which can implement database plug-in operation, such as:now let's take a look at how to11.2.0.4
I. Base and management of the database:Persistence Technology: Memory--FILE----database (most commonly used, popular)1. Database:1. Store massive data (P) Big data, cloud computing2. Security3. Easy to manage and operate (DDL,DML.TCL ...)4. Sharing of data (concurrent access)2. Product Brand: (relational database)Oracle
tables in a database, and data in tables.
Sql*plus: An environment, one of the characteristics of Oracle, Keywords can be abbreviated (such as: Edit (ed), describe (DESC)), the command can not change the value of data in the database, centralized operation
Database
\hosts file 127.0.0.1 is blocked.2. Also IP address do not use DHCP to obtain IP automatically, you need to specify an IP address. This problem occurs as long as you find the cause, and then let the monitoring start normally can solve the problem.3. Firewall does not shut down caused4. Check that the other network configuration is correct.The installation is complete, according to the prompt browser access (The browser may be reported missing flash plugin to install one on the line)User name is
Tags: not primary users ODI list A code sample automatic conversion operationI. Preparation TOOLS1.Oracle database: Full name Oracle Datebase is a relational database management system of Oracle Corporation;2.pl/sql:pl/sql Develop
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