oracle odi 12c

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

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

$ 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 -

%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

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

One, DB default character set Al32utf8Specify the database character set when you create the database. Starting from Oracle Database 12c Release 2, if you use Oracle Universal Installer (OUI) or Oracle database Configuration Assistant (DBCA) to create a database and then the default database character set used is the U

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

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

which space is larger, I this is the/dev space is relatively large (field is mounted on), directly under this directory created# mkdir-p/dev/app/Create directory # chown-r oracle:oinstall/dev/app/Group# Chmod-r 775/dev/app Authorization7. Oarlce setting Export Tmp=/tmp Export tmpdir= $TMP Export Oracle_home=zhuvmbmf.localdomain Export ORACLE_UNQNAME=ORA12C Export Oracle_base=/dev/app Export Oracle_home= $oracle _base/product/12/ora12c E

A table access by index ROWID batched may appear in the start of an Oracle 12C execution plan, official explanation: Table access by index ROWID Batched:means that Databa SE retrieves a few rowids from the index, and then attempts to access rows in blocks order to improve the clustering and re Duce the number of times this database must access a block. Main meaning: For multiple rowid in a chunk, reduce acc

Tags: oracle 12C RAC cluster log ([Email protected] ~]$ AdrciAdrci:release 12.2.0.1.0-production on Thu Mar 1 09:25:45 2018Copyright (c) 1982, Oracle and/or its affiliates. All rights reserved.ADR base = "/u01/u01/grid"Adrci> Show HomesADR Homes:diag/asm/user_root/host_3751460993_107diag/asm/user_grid/host_3751460993_107Diag/asm/+asm/+asmDiag/crs/shurkcs/crsdiag/

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

= Tag20180112t205525channel ora_disk_1:restored backup piece 1channel ora_disk_1:validation complete, elapsed time:00:00 : 01Finished restore at 12-jan-2018 21:54:48rman> restore SPFile validate; Starting restore at 12-jan-2018 21:54:57using channel Ora_disk_1channel ora_disk_1:starting validation of datafile backup Setchannel ora_disk_1:reading from backup piece +datadg/orcl/autobackup/2018_01_12/s_965249725.381.965249727channel Ora_disk_1:piece handle=+datadg/orcl/autobackup/2018_01_12/s_9652

Tags: srvctladdserviceSrvctl Add ServiceThe parameters are as follows:-S: Service name-R: Preferred instance Name-A: alternate instance name-p:taf policy, with none,basic,preconnect three values selectable-D-pdbSrvctl Add service-help View the meaning of each parameterIf-pdb is not specified here, it is connected to the CDB, which is required to remotely clone the PDB and set TNS.Srvctl add service-s lych_srv-d xxx-pdb xxx-a xxx-r xxx---Manually configuring TNS, Srvctl Config scan can view the s

patiently. 10 after the inspection passed, will give you this information, you can save, you may use later. Click Install. 11, after the patience to wait for the installation, I installed for half an hour. 12, then will pop up the following box out, click Password Management. To set the password. 13,sys system is the user you want to use. You can fill in the password, but be sure to remember. After the Oracle link is the user with the password to

Open Https://localhost:5500/em, Login failed with two accounts (Sys;change_on_install) and (System;manager)Resolved in the following ways:(1) Enter Sqlplus Sys/change_on_install as SYSDBA on the Windows command line(2) Modify the SYS account password: ALTER user SYS identified by "New password";(3) Note that the last semicolon of the second step is not missing(4) Try again, login successfulThe SYS password is not modified during Oracle

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 database PDB2 open ';END Open_all_pdbs;/Observe the alert log with the following m

Create a temporary table spaceCreate temporary tablespace test_tempTempfile ' D:\app\orcl\oradata\temproryTestUserSpace\test_temp1.dbf 'Size 10m autoextendOn next 10m maxsize 50m extent management local;Create a data table spaceCreate tablespace test_data LoggingDataFile ' D:\app\orcl\oradata\temproryTestUserSpace\test_data1.dbf 'Size 10m autoextend on next 10m maxsize 50m extent management local;Create User Settings user passwordCreate User C # #XSCJ identified by XSCJ defaultTablespace Test_da

>SelectCon_id,dbid,name,open_mode fromV$pdbs; con_id DBID NAME Open_mode---------- ---------- ------------------------------ ----------2 1258043702pdb$seed READ only3 3749525766PDB1 READ only4 2192587015P4 READ only5 255759235pdb_test Mountedsql>Alter pluggable database pdb_test open; SQL>SelectCon_id,dbid,name,open_mode fromV$pdbs; con_id DBID NAME Open_mode---------- ---------- ------------------------------ ----------2 1258043702pdb$seed READ only3 3749525766PDB1 READ only4 2192587015P4 READ