oracle b2b 12c

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Oracle 11g, 12c large number of error logging attempts to bring database exceptions

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 itself is a very good feature, but in the present there are some problems, you can disable this feature with event 28401. But it

Oracle 12c Application Connection VIP rotation load balancing?

(*)----------291062437Instance_name----------------Orcl2COUNT (*)----------291062438Instance_name----------------Orcl2COUNT (*)----------291062439Instance_name----------------Orcl2COUNT (*)----------291062440Instance_name----------------Orcl2COUNT (*)----------291062441Instance_name----------------Orcl2COUNT (*)----------291062442Instance_name----------------Orcl1COUNT (*)----------291062443Instance_name----------------Orcl2COUNT (*)----------291062444Instance_name----------------Orcl2COUNT (*)

Oracle 12C--adrci View DDL logs

$ adrciadrci:release12.1.0.2.0-Production on Tue Nov - the: to: to -Copyright (c)1982, the, Oracle and/or its affiliates. All rights reserved. ADRBase="/u12/app/oracle"Adrci>Show log; ADR Home=/u12/app/oracle/diag/rdbms/ora12/Ora12:*************************************************************************Output The results to file:/tmp/Utsout_27496_14058_1.ado -

Oracle 12c Rman Backup Documentation

%s'database include current Controlfile plus archivelog filesperset -Format'/rman_backup/bak_data/arc0_%d_%t_%s' ; Delete noprompt obsolete; Release channel C1;} eof#Incremental backup backupincr1.sh # script.: Backupfull.SH# creater:wangshengzhuang#Date: ./ on/ to# desc:backup Incremental database datafileincharchive with rman# connect Databaseexport oracle_base=/home/oratest/app/Oratestexport Oracle_home=/home/oratest/app/oratest/product/12.1.0/Dbhome_1export Oracle_sid=Cistestexport PA

Prepare to Upgrade ORACLE to learn new 12C features

explicitly inserted; METADATA-ONLY default value refers to the default value specified when a new column is added, and the difference in 11g is that, the default value of 11g must be not null. 3. extend the length limit of multiple data types: Increase the VARCHAR2, NVARCHAR2, and RAW types to 32 K, set compatibility to 12.0.0.0 or above, and set the initialization parameter MAX_ SQL _STRING_SIZE to EXTENDED, this function does not support CLUSTER tables and index organization tables. In the en

Use Toad for remote Oracle 12C data connection

Use Toad for remote Oracle 12C data connection 1. Install Oracle12c on the local machine. If you want to install a database on the local machine, select to install data. If you only need to connect remotely, skip this step without installing a database, 2. Configure TNSNAMES) 1) Open the network configuration Assistant Under the oracle program As shown in figure

Oracle 12C CDB, PDB common management commands

pluggable database test_pdb open; --将test_pdb 打开--Clone PDB (requires SYSDBA permissions under CBD)create pluggable database orcl2 from orcl1; --test_pdb必须是打开的,才可以被打开alter pluggable database orcl2 open; --然后打开这个pdb--Remove PDB (requires SYSDBA permissions under CBD)alter pluggable database orcl2 close; --关闭之后才能删除drop pluggable database orcl2 including datafiles; --删除PDB orcl2--Set the CDB start PDB to start automatically (using a trigger here)CREATE OR REPLACE TRIGGER open_pdbsAFTER S

Oracle 12C--Plug in a non-cdb as a PDB

Label:1. Backing Up the NON-CDB database2. Close the NON-CDB database sql> shutdown immediate; 3. non-cdb to read-only status sql> Startup Open Read Only 4. Create an XML file (created in non-cdb) sql> begin Dbms_pdb.describe (pdb_descr_file='/tmp/test.xml') ; End; / The XML file created here and the original library's data file make up a unplugged PDB 5. Close the NON-CDB database6. Login CDB using ' /tmp/orcl.xml ' copy; SQLSet container=P6; SQL> $

Oracle 12C a telecom company optimizes a 12-hour run-out of SQL and runs out in the last 6 minutes

E_order T1 INNER JOIN (select/*+ Parallel (t2,36) Full (T2) */DISTINCT T2.super_account_no,t2.phone_no,t2.service_code, COUNT (T2.super_account_no) cn from T_pkk_fai L T2 GROUP by T2.super_account_no,t2.phone_no,t2.service_code have count (T2.SUPER_ACC OUNT_NO) > 1) rs on (Rs.super_account_no = t1.super_account_no and rs.phone_no = T1.phone_n o And Rs.service_code = t1.service_code and rs.cn > Round ((sysdate-add_months (T1.process_time, T1.free_month))/36

Oracle 12C--Shutdown CDB

Label: Select from V$pdbs; NAME open_mode ---------------------------------------- pdb$seed READ only PDB1 READ WRITE PDB2 READ WRITE SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL Alert log: shutting instance (immediate) stopping background process SMCO shutting down Instance:further logons disabled S

Oracle 12c database Archive

Oracle 12c has a new feature that can archive data in the database, hide infrequently accessed data from the application, and set it to inactive. Of course, it can also be displayed at the session level. This is achieved through the row archival visibility parameter, which can be set to two values, active or all. Active is the data that shows the activity, and all is the data that shows all, including inact

INS-30131 Error Resolution for Oracle 12c x64 under win _oracle

This article for you to share the installation of Oracle 12c [INS-30131] error of the solution, for your reference, the specific content as follows Solution: Step One: Control Panel > All Control Panel Items > Admin tools > Services >server Start Step Two: Control Panel > All Control Panel items > Management tools > Computer Management > System Tools > Shared Folders > Share right-click "Sharing" > N

ORACLE 12C in-memory Performance test notes

Enable In-memory FeaturesDatabase version 12.1.0.2 and above, inmemory_size parameter set to appropriate valueSql> SELECT * from V$version;BANNER con_id-------------------------------------------------------------------------------- ----------Oracle Database 12c Enterprise Edition release 12.1.0.2.0-64bit Beta 0Pl/sql Release 12.1.0.2.0-beta 0CORE 12.1.0.2.0 Beta 0TNS for linux:version 12.1.0.2.0-beta 0Nlsr

After installing Oracle 12C database, Scott account expires, unlock method

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 separately to confirm that the Scott account is given a new password. Open SQL Plus and log in wi

Oracle 12c Learning starts off cdb&pdb

Tags: variableroocontainonlyaltered stroracle Create star 1. Default login to cdb Oracle 12c Learning starts off cdbpdb

Oracle 12c Create users

Tags: io using ar for SP on EF BS SQL--Confirm Current CDB Sql> select name,cdb from V$database; NAME CDB------------------------ORCL YES --Query the current PDB basic information Col pdb_name for A30select Pdb_id,pdb_name,dbid,status,creation_scn from Dba_pdbs;select con_id,dbid,name,open_mode From V$pdbs; Create a consumer sql> Create User C # #test identified by test; Sql> alter session set CONTAINER=PDB1;Sql> show Con_name; Sql> show Con_name; Con_name------------------------------PDBORCL Cr

Oracle 12C-CDB start-up process

To start DB12 as an example' /as sysdba ' SQL 12.1. 0.2. 0 1 :1982, Oracle. All rights reserved. Connected to an idle instance.1.nomount StageSql> startup Nomount; 1174405120 bytesfixed Size 2923680 bytesvariable Size 436208480 bytesdatabase buffers 721420288 Bytesredo buffers 13852672 Bytessql Select from v$pdbs;no rows selected2.mount Stage: Open control file, root and

WIN10 x64 Solution for installing Oracle 12c [INS-30131] Error

Solution: First step: Control Panel > All Control Panel Items > Administrative Tools > Services >server startupStep two: Control Panel > All Control Panel Items > Administrative Tools > Computer Management > System Tools > Shared Folders > Share Right-click Share > New Share >Click "Next" > click "Browse" > Select "Local Disk (C:)" > OK"Share name" enter "C $" > "Next " where permissions in share are set to administrators with full access, and other users have read-only permission (R)ok! The fi

Use EMCLI to delete obsolete agent targets in Oracle EM Cloud Control 12c

[Email protected] ~]$ Cd/oem/oms/oms/binLog in to OMS[Email protected] bin]$/EMCLI Login-username=sysmanEnter Password:Login Successful Synchronizing information[[email protected] bin]$./EMCLI SyncSynchronized successfully gets the targets associated with the agent currently mwtest02 the host[Email protected] bin]$/EMCLI get_targets | grep mwtest025 under Blackout host mwtest025 under Blackout oracle_emd mwtest02:3872 perform the delete operation and associate all related targets[Email protected

Oracle 12c In-Memory in Tablespaces

Oracle 12c In-Memory in Tablespaces As mentioned In the previous article, you can enable In-Memory at the table level. In fact, you can also enable Tablespaces at Tablespaces level, in-Memory is also enabled for all tables stored In Tablespaces. Let's test it. 1. Create a tablespace and specify the INMEMORYSQL> CREATE TABLESPACE tbs1 datafile 'tbs1' SIZE 40 M DEFAULT INMEMORY; 2. Create a table on the newly

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