oracle database 12c

How to install Oracle 12c in RedHat Linux 6 Step 1: To install Oracle on RedHat Linux 6, you must install the corresponding software package before installing Oracle. In different operating system environments, the software package requirements are different. Specific corresponding software packages, see the official d

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

Tags: Log release 1.3 nec Rman created Min object operation1.1. Rman Connection DatabaseRman can connect to a target database through operating system authentication and password file two ways, users who use the Rman Backup Recovery tool need to have SYSDBA or sysbackup system permissions, if the user needs to connect to the recovery directory, need to be granted Recovery_catalog_ Owner object permissions.D:\instantclient_12_2>sqlplus sys/password @cl

Download Oracal installation packageEnter https://www.oracle.com/index.html Select-->menu-->downloads and trials-->database-->oracle DatabaseCheck the Accept License agreement.Locate Oracle Database 12c Release 2, select the following file 1 (3.2 GB) See all download (if you

Because Oracle 12c uses the CDB-PDB architecture, similar to Docker, multiple pluggable-db can be loaded within the CONTAINER-DB, so additional configuration is required after installation to be used.First, modify the Listener.ora, Tnsnames.ora# # #listener. ora###LISTENER =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP) (HOST = localhost) (PORT = 1521))(Connect_data = (service_name = ORCL)))#sid list enumerates

Tags: 12c impdp expdp12c has launched a pluggable database with multiple database PDB in the form of multiple tenants in a single container cdb. The data pump import and export for the PDB is slightly different from the traditional database.1, need to add tansnames for PDB2, import and export need to specify its tansna

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

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/

/o1_mf_undotbs1_djszmxkc_.dbfspace_name,b.file_nameSql>drop tablespace UNDOTBS1 including contents and datafiles; (Remember to execute in the PDB)Sql>select name from V$datafile where name is like '%undo% ';NAME-----------------------------------------------------------------------------/HOME/ORACLE/APP/ORACLE/ORADATA/ANDYCDB/DATAFILE/O1_MF_UNDOTBS1_DJSYYJLK_.DBF > is now the Undo datafile in CDB.Ii. shared

How to install Oracle 12c in Redhat 6 environment, oracle12c Step 1: To install Oracle on Linux, you must install the corresponding software package before installing Oracle. The requirements for software packages vary with operating system environments. Specific corresponding software packages, see the official docume

in a separately installed BIEE client(For the Admin Tool installed with the new standalone installer)1. Copy Tnsnames.ora from Oracle server to any directory, such as E:\network\admin2, add the following line in %obiee_client_home% \oraclebi\orahome\bifoundation\server\bin\bi_init.bat , specify the path of the Tnsnames.oraFor example:C:\Software\Oracle business Intelligence Enterprise Edition Plus Client t

] ~]$ sqlplus sys/[emailproteCTED] as Sysdbasql*plus:release 12.1.0.1.0 Production on Sat Jan 14:26:04 2014Copyright (c) 1982, oracle. All rights reserved.connected to:oracle Database 12c Enterprise Edition Release 12.1.0.1.0-64bit productionwith th E partitioning, OLAP, Advanced Analytics and Real application testing optionssql> show Con_name con_idcon_name--- -

Kernel parameters Net.ipv4.ipfrag_low/high_thresh, Net.ipv4.ipfrag_time GC Lost block problem Gns Optimizing the RAC database grd* RAC Wait Event * GC Current Block 2-way/3-way GC CR Block 2-way/3-way GC CR Grant 2-WAY/GC current Grant 2-way GC CR Block BUSY/GC current block Busy GC CR Block CONGESTED/GC current block congested Placeholder Wait Events

The new feature of Oracle 12c paging query is expected in the upcoming oracle 12c release. This is the optimization of paging query. There are many paging query functions in the application. Previously we used rownum for this purpose.For example, to query 1-10 records, the query statement is as follows: www.2cto.com SQ

Oracle 12c Turn off statistics collection and enable statistics collection--Turn off statistics Col client_name for A60select client_name,status from Dba_autotask_client; Client_name STATUS------------------------------------------------------- ---------------------Auto Optimizer stats collection Enabledauto space Advisor Enabledsql Tuning Advisor Enabledbegindbms_a

Tags: Shel from show and off with Ted add HelpIn 12c, Oracle introduced the History command, which is much like the history in the Shell, reducing the knock-down of SQL and bringing a lot of convenience.1. View the history HelpSql> HelpHistory-------Stores, lists, executes, edits of the commandsEntered during the current Sql*plus session.Hist[ory] [N {RUN | EDIT | Del[ete]}] | [CLEAR]N is the entry number l

Many times, we do a small batch of data migration will use the data pump, but 12C we want to configure TNS to specify the PDB import, but the public service we are through the cluster using SRVCTL to create. At this time preferred instances may have multiple values. If your DMP file is not mounted through shared storage, then DMP must be uploaded to a node to store it for the corresponding directory creation.Issue-triggered scenario, TNS if this is co

;Table altered.--View index statusSql>Col index_name for A25Select Table_name,index_name,status,blevel,leaf_blocks,orphaned_entries from user_indexes where index_name = ' IDX_ Andy_id ';table_name index_name STATUS blevel leaf_blocks ORP------------------------- ------------------------- -------- ---------- ----------- ---Andy_move idx_andy_id VALID 0 0 NO--Move online partition table errorSql> ALTER TABLE P_andy move online;ALTER TABLE P_andy move online*ERROR at line 1:Ora-14808:table does not

Starting with Oracle 12C allows different types of index to be created on the same column for performance tuning, with different types of index mainly including (B*tree vs bitmap,local vs Global)ORACLE 11G The code is as follows Copy Code Sql> select * from V$version; BANNER ------------------------------------------------------------