Oracle

Many users put forward monitoring configuration related issues, client terminal (client) can not connect server side (server). This article is now a brief introduction to the monitoring configuration, and put forward some customer terminal can not

SUBSTR (' This was a test ', 6, 2) = ' is ' SUBSTR (' This was a test ', 6) = ' is a test ' substr (' techonthenet ', -3, 3) = ' Net ' substr (' Techonthenet ',-6, 3) = ' the ' substr (' ABCDE ', -6) = null substr (' ABCDE ', -5) = ' ABCDE

Let's take a look at the data structures of several tables of Scott users in Oracle:==============================================================The following operations are performed in the Oracle database (if required)=============================

Oracle Services start & Stop scripts with boot. Oracle installation directory and environment:   installation directory:/hywl/oracle/app/product/11.1.1/db_1 in CentOS 6.5 After installing the Oracle 10g R2, after rebooting, you will find that

Clear Oralce cache: Alter system flush Buffer_cache;Environment: Oracle 10g, 4 million data, frequency 5 minutes1. Application scenario: Find the latest data for all sites. The SQL statements are as follows:———————————————————————————————————————————

1. Copy or remotely mount the Backupset folder from the source server to the target server2. On the target server, export Oracle_sid as same as the source database and run "Rman Target/"3. Restore SPFile from backup:rman> startup Nomount;Startup

I. Default table space descriptionIn Oracle9i, all users who are not created with the default TABLESPACE clause will use the system table space as their default tablespace. It is also not possible to specify a default tablespace for the database.The

Before giving you a specific introduction to Oracle Hints, let us first understand what Oracle Hints is and then fully introduce Oracle Hints, which I hope will be useful to you. The cost-based optimizer is very smart, and in most cases it chooses

This article transferred from: http://www.cnblogs.com/adforce/p/3312252.htmlA complete Oracle database is typically made up of two parts: an Oracle database and a database instance. 1) The database is a collection of physical files (data files,

1. Error message:MySQL Data truncation:data too long for column ' path ' at row 1Cause of Error:1. The field is too long to cause an error,2. It is possible that the table settings in the database have different character sets.Workaround:varchar (-->

For the Oracle database, in order to ensure the security of data, we need to set up the database of the Recycle Bin function, the default function is open. We can view and modify them through the following steps1 See if the database has a Recycle

This article is not to give beginners a detailed explanation of how Oracle under the table space, user, empowerment and other command parameters and meaning, this article may only have a certain Oracle foundation of friends to help.The Oracle

Oracle is the big guy for OLTP, and it's used by many industry applications. So in the process of development of the inevitable use of Oracle database, Oracle database version has a lot of, where the Express version is a free development version,

"E Mentor Network" new version of Oracle database release no doubt many of the companies that use will want to update the upgrade, but former Oracle employee Kevin Closson reminds you to upgrade the latest Oracle Database 12c 12.1.0.2 before you

Today 4 o'clock in the morning, the person in charge of the scene of the customer called me, said very strange, the download function is fast and slow. This download is very complex, and I've been optimizing it before, turning on the computer in

Note: This article is excerpt from Zhang Xiaoming Oracle RAC: Cluster high availability backup and recoveryBecause the cluster environment needs multiple computers to work together, to achieve the ideal state, we must consider the new challenges

Oracle Notes1 How to uninstall Oracle Developer Server:Uninstall the corresponding Oracleds project in the 1-1 Oracle Uninstall tool;Search the registry for the alias of Oracleds home, delete the corresponding item;Restart the computer;Remove the

Data Import from oracle to mysql (applicable to the mutual import between any data sources) To release some resources in the production database, you need to migrate the API module to mysql and export data. When I tried the oracle to mysql tool,

Analyze the oracle index space usage and whether the index needs to be rebuiltAnalyze the index space usage and whether the index needs to be rebuiltThe analyze any permission is required to analyze indexes of other users.Check the table size and

Oracle Automatic Diagnostic archives (ADR), automatic diagnostic workflows, and ADRCI tools. Automatic diagnosis workflow: With a memory tracking tool that is always on, the database component can capture diagnostic data when a serious error occurs