Oracle

First, view the usage of table space in Oracle databaseSelect A.tablespace_name "tablespace name", Total "tablespace size", free "table space remaining Size", (total-free) "Tablespace use size", total/(1024 *1024*1024)

Although the database is placed in the Linux virtual machine, but all to do every normal landing and exit, the following is the process:To start a DB instance stepFirst step: Start monitoring#su-oracle//Switch to Oracle user $lsnrctl start//turn on

First, the database conceptDB databaseDBS Database SystemDBA Database Administrator AdministratorDBMS Database Management SystemSecond, the relational databaseOracle oracle,ibm db2,ms sqlserver,sybase sybase,ibm informix,mysql,accessXml,txt can do

In the development process, the Oracle database is sometimes connected, sometimes not even, prompting the following exception "Ora-12519:tns:no appropriate service handler found resolved", It is possible that the current number of connections on the

First, uninstall Oracle before oracle11g there is a situation where uninstalling is not clean, causing the installation to fail again, running services.msc to open the service, stop all services of Oracle.Second, oracle11g with a uninstall batch

After successfully installing Oracle 11g in accordance with the methods in Windows 7 64-bit installation of Oracle 11g R2, there are 7 services that have the meanings of seven services, respectively:1. Oracle ORCL VSS Writer service:oracle Volume

Oracle Tips by Burleson ConsultingOctober 26, 2008Question:  I need A-verify that my OEM and isqlplus and Oracle services is started. How does you start the Oracle services?.Answer: Oracle Windows processes is more difficult to manage as services,

The project uses:First of all: The Flash back method has a premise, is the need to identify problems early, decisive action. If the record of the misoperation has been cleared in the Undo table space, this method is not available and needs to be

Reference:http://blog.itpub.net/26524307/viewspace-1063925/View version:[Email protected] yum.repos.d]# lsb_release-aLSB Version:: base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64: Graphics-4.0-noarch:printing-4.0-amd6

[[email protected] ~]$ sqlplus/as sysdbasql*plus:release 11.2.0.4.0 Production on Mon Apr 17:19:32 2015Copyrigh T (c) 1982, Oracle. All rights reserved. Connected to an idle instance. Sql> Startup ORACLE instance started. Total System Global area 10

Sometimes we need to query specific field information in Oracle by field name, field type, field length, field comment, table name. For example: Yesterday, my colleague asked me, our database has been useful in the BLOB type? I can't remember a

Oracle Study--DBCA Build library errorSystem environment:Operating system: RedHat EL54Oracle:oracle 11gR2Failure phenomena:After installing the 11GR2 software ready to create the database through DBCA, execute DBCA with the following error:[Email

First, the preparatory workTo create a table space:Create temporary tablespace yangwen_tempTempfile ' D:\oracle\oradata\orcl\yangwen_temp.dbf 'Size 50mAutoextend onNext 50m maxsize 20480mExtent management Local;Create Tablespace

Prior to Oracle 10g, the merge statement supported 2 simple usages for matching updates and mismatches, and in 10g Oracle enhanced the merge statement by adding conditional options and delete operations. Below I have a demo to briefly describe the 10

Set up oracle linux official yum source, oracleyum References: http://blog.itpub.net/26524307/viewspace-1063925/ View version: [Root @ datanode68 yum. repos. d] # lsb_release-LSB Version: base-4.0-amd64: base-4.0-noarch: core-4.0-amd64:

Oracle custom function to determine whether data is a numeric function, oracle Value 1 create or replace function isnumeric (str IN VARCHAR2) 2 return number 3 IS 4 v_str VARCHAR2 (1000); 5 BEGIN 6 IF str is null 7 THEN 8 RETURN 0; 9 ELSE10 v_str: =

Oracle olap error ORA-06512: at "SYS. OLAPIHISTORYRETENTION", oraclesys default password After ORACLE 10g R2 is installed, the following error occurs when the database is started: Database Characterset is UTF8 replication_dependency_tracking

Orecle returns an error when deleting a table ORA-24005: using an inappropriate utility to execute ddl on the aq table ** Recently, I want to copy the entire database from the server. Therefore, a new database is created locally. When deleting

Oracle scott table structure and simple query instance analysis, oraclescott This article describes the scott table structure and simple query methods in Oracle. Share it with you for your reference. The specific analysis is as follows: 1. scott's

Use mergeinto of ORACLE10gBefore Oracle 10 Gb, the merge Statement supports two simple usage methods: matching and updating and inserting non-matching. In 10 Gb, Oracle enhanced the merge statement and added the condition options and DELETE