The problem originates from a 12c database of the customer and needs to be booted to a non-real time apply mode, but the discovery is performed:ALTER DATABASE recover managed standby database cancel;ALTER DATABASE recover managed standby database disconnect from session;
After that, the database is still working in the real time apply mode.
Went to the alertlog for a while, found the answer:
Thu June 09 12:16:03 2016Errors in FILE/CUST/MYDB/RDBMS/
Label:In previous versions, the parent table could not be truncate directly when there was a foreign key constraint. In 12C, a cascade operation attribute was added to the truncate operation. If you create a FOREIGN key constraint, use "on Delete Casacde". Test script: Sql>drop table child; SQL>drop table parent; SQL>CREATE TABLE parent (ID number primary key); SQL>CREATE TABLE Child (CID number primary key,pid number); SQL>ALTER TABLE child add cons
Windows 10 install oracle 12c error: [INS-30131], 12cins-30131
"[INS-30131] the Initial Setup That Is Required to Run the Installation Program Validation Was Not Successful" Error While Installing Oracle Database (Doc ID 1569962.1)
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Creating Multiple indexes in the same column does not seem to be implemented in other databases, but now ORACLE 12C can be implemented, the following describes how to create multiple indexes in the same column.
From ORACLE 12C, different types of indexes can be created on the same column for performance optimization. D
Oracle 12c auto-incrementing column Identity Columns
In the 12c version of Oracle, Oracle implements auto-increment columns similar to auto_increment in MySQL. Let's take a look at how Oracle is implemented.
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Database architecture
On July 6, June 26, 2013, Oracle Database 12C was officially released. The first version was 12.1.0.1.0. The first download platforms were Linux and Solaris:
Oracle official:
Http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
Like the previous 10g,
Tags: openfiler 12c oss sha Hyper-converged to address ADO RAC improvementsWith a lot of Oracle RAC, shared storage is used. Dual controller with full disk, 15000 rpm SAS full slot, made into RAID 10, the cost is still very large. Recently in the open source hyper-fusion test, has achieved the very ideal effect: to be centralized, high availability, open source and low cost, can realize any one physical mac
Install Agent AgentIn the em11g, agent installation is through the host side of the producer to download Agent agent and installation, on the EM12C version, on the EM12C server, through the "push" way the agent agent in the remote installation to the monitored host side, You can also install agent agents for multiple hosts at the same time.Official documents:Http://www.gokhanatil.com/2011/10/how-to-deploy-oracle-management-agent.htmlInstallation metho
This article mainly introduces the basic management of CDB and PDB, data source Oracle official.Basic concepts:Multitenant Environment: Multi-tenant environmentCDB (Container database): DB containerPD (Pluggable database): pluggable databasesCDB vs. pdb diagramCOMMON users (ordinary users): often built on the CDB layer, user name in C # #或c # #开头;Local Users: Only the PDB layer is established, and container is specified when it is established.In
Tags: cond system version Media form begin created CDP his ISALinux DB instance monitoring boot boot settingsAugust 1, 2018 ZhankyTest introductionSystem version: Oracle Linux 7.2 x64DB version: Oracle database 12c Enterprise Edition Release 12.2.0.1.0-64bit ProductionInstance Name: Orcl cdp:orcl PDB:ORCL1, Orcl2Oracle_home:/u01/app/
/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
/dwjrdbpdb/undotbs01.dbf '2018-07-05t23:42:22.481081+08:00Errors in FILE/U01/APP/ORACLE/DIAG/RDBMS/DWJRSTDYDB/DWJRSTDYDB/TRACE/DWJRSTDYDB_M000_129832.TRC:Ora-01110:data file One: '/u01/app/oracle/oradata/dwjrstdydb/dwjrdbpdb/users01.dbf ' Refer to MOS Documentation:ORA-01110 for all Files in Standby Database (document ID 2322290.1) ChangesNew or upgraded Standby on 12.2.0.1 Cause Unpublished Bug 24844841:ph
Differences between a transaction-based temporary Oracle table under 11 GB and 12CThe transaction-based temporary tables in Oracle differ from those in 11g and 12C. After collecting statistics on the temporary tables, the former records are cleared, and the latter does not, this is an important difference. 12C is used
Issues with CDB User Creation and tablespace allocation in Oracle 12c Database
In Oracle12c, the concept of database plug-in is added, that is, PDB, which allows a database container (CDB) to host multiple pluggable databases (PDB ). CDB is called ContainerDatabase, and the Chinese translation is a database container. PDB is called PluggableDatabase, which can be used to plug and unplug the database. Before
Tags: val alter err enhanced nbsp char des create visibleIn Oracle 11g R1, Oracle introduces some nice enhancements in the form of invisible indexes and virtual fields. Inheriting the former and carrying forward, Oracle 12c introduces the idea of invisible fields. In previous releases, in order to hide important data f
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
Oracle 12C TRUNCATE TABLE CASCADE
The truncate table cascade statement is provided in Oracle 12c to delete the association when the TABLE has a primary foreign key relationship and is cleared. The following is a demonstration.
1. Prepare the test tableSQL> CREATE TABLE t1 (2 id NUMBER,3 description VARCHAR2 (50 ),4 CON
This article describes how to use simple CDC for Oracle ODI 12c. It is the simplest kind of CDC. In this mode, each CDC table change is captured independently, and there is no need to consider data consistency between multiple tables with primary foreign key reference relationships.1. Import Knowledge ModulePrior to this, all the knowledge modules have been imported, and the CDC feature knowledge module as
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