Adding columns with default values to tables in Oracle (including new 12C features)
This is a problem that I have been paying attention.
11G has been improved on this issue, and 12C has some new features.
12C adds the new 11g feature in this regard.
Add a column in 11G and set the default value. Instead of changing
Add columns with default values in Oracle tables (including new 12C features) and oracle12c
This is a problem that I have been paying attention.
11G has been improved on this issue, and 12C has some new features.
For a discussion on the new features of 11g, refer to my blog http://blog.csdn.net/dbcrocodile/article/details/21170407
Oracle 12C joins a very innovative feature, pluggable database, that enables database (PDB) pull-out capabilities on the "container" (CDB) to improve system resource utilization and simplify the management and migration of large-area databases.now let's tryThe operations of the CDB and PDB for pluggable databases are:Basic information:Root container (CDB): CUPPluggable Database (PDB): TEATo start the root c
Label:Oracle DB 12c new feature: Raw device is no longer supported. Reference from:Announcement of De-support of using RAW devices in Oracle Database Version 12.1 (Doc ID 578455.1) Details:De-support of RawThe directory for this article is a notification that the raw device is no longer supported in the Oracle Database 12.1 release.This means that if you use the
. Enable administrative share for C $ (please check with your System Admin to do this or see Microsoft document Http://suppor t.microsoft.com/kb/314984) 2. Check that it was OK: -net use \\-the current user (i.e. user in Administrator Gr OUP) should has all privileges on the default share 3. Retry the installation 4. Remove the administrative share again B) Check if Windows services "Oracleremexecservice" is running Check if Windows services "Oracleremexecservice" is running,
Rman can perform db,tablespace,datafile,block level and TSPITR recovery in previous versions of 12C, 12C introduces table-level recoveryA single table can be recovered without opening the flashback.example, create a tableSql> alter session set CONTAINER=PDB2;Session altered.Sql> CREATE TABLE Frank.t1 as SELECT * from Dba_tables;Table created.Backing Up the databaserman> backup Database;Starting backup at 16
using the temporary tablespace 22.8 summary
Chapter 23rd pluggable Databases23.1 Understanding Pluggable Architecture23.1.1 Conversion Paradigm23.1.2 the meaning of backup and recovery operations23.1.3 Fine Tuning23.2 Creating a CDB23.2.1 creating a CDB manually using SQL commands23.2.2 using DBCA23.2.3 creating a CDB script from DBCA23.2.4 Check if the CDB has been created23.3 Managing the root container23.3.1 Connecting the root container23.3.2 displaying information for the current conn
#!/bin/bash# #oracle: Start/stop Oracle Database 11g r2/12c## chkconfig:345 - Ten# description:the Oracle Database Server is a RDBMS created by Oracle corporation## processname:oracle./etc/rc.d/init.d/Functionslockfile=/var/lock/subsys/Oraclepath= $PATH: $HOME/Binoracle_use
[Translated from mos] in Oracle db 12c, The alert_sid.log permission is changed every time the log is switched. 12calert_sid.log
In 12c, The alert_sid.log permission is changed each time the log is switched.
Source:Alert log file's permissions Change with every log switch in 12c (Doc ID 1637367.1)
Applicable:Oracle Dat
settings, character set settings, and syntax settings. Net configuration Assistant: typically configured for network connections, this tool can be installed if a listener installation fails during installation because of some problems. Net Manager: Above is the configuration, this is the management.5. Extended Reading5.1, Oracle 12c simple jdbc Use 5.2. Configuration and use of
New Features of Oracle 12C-online migration of table partitions or subpartitions
Oracle 12c: new feature-online migration of table partitions or subpartitions. It is no longer necessary to migrate table partitions or subpartitions to different tablespaces in Oracle
I used to have an idea that I just wanted to create an index on one or a few of these partitions, and that the other partitions didn't want to be created, and neither the local nor global index was able to achieve that requirement, but the partial Global was introduced from Oracle 12C /local Indexes for partitioned tables solves the problem by creating a local index or global index on the specified partitio
/Tmp/OraInstall2018- .-14_Geneva- the-57PM. Please wait ...[[email protected] Disk1]$Start the Oui interface hereNote: The path in is not the same as the environment variable set above, because the server for the environment variable and the server that is installed are not the same.1) Select Installation Option2) Specify installation Details3) Summary4) Install Product5) FinishResources
https://docs.oracle.com/goldengate/c1230/gg-winux/OGGIN/installing-
move datafile '/u01/app/oracle/oradata/cdb/pdb/pdb_users01.dbf ' to '/u01/app/pdb_user01.dbf ';Database altered.Sql> Select Name,status from V$datafile where file#=10;NAME STATUS-------------------------------------------------------------------------------- -------/U01/APP/PDB_USER01.DBF ONLINESuccess!Summary: Although Oracle 12c log files are shared, CDB and e
Record the restoration of the ORACLE 12C CDB database when the current redo is lost. ORACLE 12C redo exception recovery test-some pdb are not open normallyIn order to verify the restoration of the ORACLE 12C CDB database when redo
1. View host and database information [[emailprotected] ~]$ sqlplus/as sysdbasql*plus:release 12.2.0.1.0 Production on Tue May 01:19:35 2018copyright (c) 1982, Oracle. All rights reserved.connected to:oracle Database 12c Enterprise Edition Release 12.2.0.1.0-64bit production nbsp Sql> set linesize 300set pagesize 999select * from V$version;bannercon_ ID-------------------------------------------------------
The company installs an Oracle 12c test environment, is ready to export the online library to test performance, the results of the test library of the character set selected Al32utf8, a look at the line is ZHS16GBK, or to maintain the same, and then record Al32utf8 ZHS16GBK character Set process:
first, the most important thing: backup. Back up your data. Don't forget to back up your data.
C:\windows\syst
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