Tags: Oracle 11g installation Diagram Oracle database tutorial Oracle installation Oracle Video tutorial Oracle Tutorial1. After completing this chapter, the Oracle Video tutorial will be able to master the following:650) this.wid
set in the default profile or inherited from the profile file. If two password history parameters have value Unlimited, Oracle DB ignores both. Users can reuse any password at any time, but this is not an effective security practice. If all two parameters are set, the password is allowed to be reused, but both conditions must be met: The user must change the password for a specified number of times, and th
ORACLE Data Buffer DB cache db cache is a buffer organized by data blocks. When the database was just started, there was almost no user data buffer in the db cache, when a session accesses a table or index in the database, it first checks whether the data exists in the db ca
[Translated from mos] If SCHEMATRANDATA is used in OGG (Oracle GoldenGate), additional db patches are required,
When SCHEMATRANDATA is used in OGG (Oracle GoldenGate), additional db patches are required.
Reference Original:Patches needed to support SCHEMATRANDATA in OGG (Oracle
Calling a stored procedure through a JOB in oracle DB:
Create or replace procedure addage
Is
Begin
Insert into test_work_age (work_age_id, work_age_code, work_age_name, created_date)
Values (114, '20140901 ','');
End addage;
-----------------------
DECLARE
X number;
BEGIN
DBMS_JOB.SUBMIT
(Job => X -- job name
, What => 'addage; '-- procedure name
, Next_date => to_date ('26-05-2007 08:00:00 ',
In Oracle DB 12.1.0.2, SYS. ALL_CONSTRAINTS and SYS. ALL_CONS_COLUMNS are defined,
SYS. ALL_CONSTRAINTS is defined as follows:
CREATE OR REPLACE VIEW ALL_CONSTRAINTS ASselect OWNER, CONSTRAINT_NAME, CONSTRAINT_TYPE, TABLE_NAME, SEARCH_CONDITION, SEARCH_CONDITION_VC, R_OWNER, R_CONSTRAINT_NAME, DELETE_RULE, STATUS, DEFERRABLE, DEFERRED, VALIDATED, GENERATED, BAD, RELY, LAST_CHANGE, I
(c) 1982, Oracle. All rights reserved. Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.4.0-64bit ProductionWith the partitioning, Real application Clusters, Automatic Storage Management, OLAP,Data Mining and Real application testing options Sql> alter tablespace testdb_blob add datafile ' +datadg ' size 30720M; Tablespace altered. Here, be sure to use the "+" number, otherwise it will become a local file, resulting in a node can no
The biggest feature of sharding database is that it can be scaled horizontally. However, horizontal scaling is not a horizontal extension of the RAC, and pure sharding DB does not have an HA schema. That is, a shardcat db, multiple Shard node db. No matter who is down, it will cause no use.
Let's take a look at the top down and see where there's a single point of
Tags: orcale11g rac ora00257 dealing with insufficient ASM disk space issuesOra-00257archiver Error Resolution1. Previous processing of single-machine over Oracle 11.2.0.4 archive log disk space is insufficient, but there is no problem with insufficient archive log disk space for Oracle RACSo there is no expectation that ASM disk space is out of the questionOracle database is the most commonly used large da
sentence is manually added, This means that the server from 10.62.1.1-10.62.1.254 can use our ntpserver to synchronize time.The server 192.168.146.225 is also manually added, indicating the IP on the LAN as the NtpServer, and the last two lines of the configuration file serve to provide time services to the client in local time when the server loses contact with the public time server. #chkconfig ntpd on/configure NTPD service boot itself boot #service ntpd start/start ntpd service Install grid
All below actions should is executed with "Oracle" user account1. Check The status of listener$ LSNRCTL Status2. If the listener isn ' t be started, start it$ lsnrctl Start3. Set the "ORACLE_SID" environment to the DB instance's SID which you want to start, for example$ Export oracle_sid=pc8554. Start Sqlplus and start the DB instance$ sqlplus "/as sysdba"Sql> St
Windows operating system (no matter 32bit or 64bit) does not support the db_32k_cache_size parameter of oracle db ., 32bit64bit differences
The db_32k_cache_size parameter of oracle db is not supported in Windows (no matter 32bit or 64bit.
As follows:
F:\oracle\product\10.2.
Label:Translated from MoS article: Dell Pcserver,oracle DB using the Windows operating system error: ORA-8103 ORA-8103 using Windows platform and DELL servers (Doc ID 1921533.1) Applies To:Oracle database-personal edition-version 11.1.0.6 to 12.1.0.2 [Release 11.1 to 12.1]Oracle Database-standard edition-version 11.1.0.6 to 12.1.0.2 [Release 11.1 to 12.1]
In some cases, you need to associate different databases for Data Query and operations.
In Oracle, database links are used to associate tables with different databases ).
There are two ways to create a DB link: Creating an SQL statement and creating it on a visual interface (actually an executed SQL statement ).
1. Create a project using PL/SQL Developer
Name: DBLINK name. For example, DEMO
UserName: Dat
Global_name and db domain in Oracle
1. YouConnect ToSALES.US.EXAMPLE.COMAndQuery the GLOBAL_NAMEDataDictionaryView ToDetermineCurrent DatabaseGlobal name:
CONNECTSYSTEM@Sales.Us.Example.Com
SELECT * FROMGLOBAL_NAME;
GLOBAL_NAME
----------------------------------------------------------------------------
SALES.US.EXAMPLE.COM
2. You query the V $ PARAMETERView ToDetermineCurrentSettingForThe DB_
Oracle 10g R2 re-built Em dB control. If you have not modified the IP address or machine name after installation, you can skip steps 1 and 2.1. Drop configuration files and repository run:Emca-deconfig dbcontrol DB-repos drop
2. logon sqlplus as user SYS or system, and drop the sysman account and mangement objects:A. Drop user sysman cascade;B. Drop role mgmt_u
This method enables synchronization of tables with two different versions of Oracle, and is more efficient than IMP statement-guided DMP.
first, achieve the goal:To implement data synchronization from the source table (AAA) to the target table (BBB).
Second, establish Oracle DB Link on the target machine:
1, in the Network/admin/tnsname.ora file to add the source
Overview of Oracle DB partition features Overview of Partitions
Overview: in Oracle databases, partitions can break into very large tables or indexes into small, manageable blocks ), these blocks are called partitions ). each partition must have the same logical structure, such as the column name, data type, and constraints. However, each partition can have its
DB Replay settings Scale_up_multiplier not effective
Set Scale_up_multiplier:
BEGINDbms_workload_replay. Prepare_replay (Scale_up_multiplier => 10);End;
But after setting, in Dba_workload_replays. The Scale_up_multiplier check found that this value is always 1.
This is because Scale_up_multiplier does not support synchronization based on an object ID. When the value of the synchronization is object_id,scale_up_multiplier in the code, it is hard 1
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