Oracle

Guidance:InOracleMay accidentally DROPTableIf regular backup is not performed, it will cause a lot of trouble. In some cases, daily data is very important, and the regular backup cycle is a little longer. I am afraid the situation is not optimistic!

Guidance:ForOracle DatabaseOfRownumThe problem is that many materials are not supported>, >=, =, ...... And, can only use the above symbols (, & gt; =, =, ...... And will prompt SQL syntax errors, but often cannot find a record, and it seems to be

InOracle Network StructureInConnectionThe problem is a headache for many people. It is the connection problem in the Oracle network structure that has brought a lot of inconvenience to everyone's work, next, we will teach you how to solve the

The increasing demand for distributed applications requires a better distributed software environment, which constantly promotes the development of distributed technology.Oracle DatabaseReplication is a technology that implements a distributed data

Oracle DatabaseIt is a relational database management system with good functionality. It is easy to operate and fast to operate Oracle databases and is widely used by users. This article will introduce OracleStart. The Oracle startup process

ORACLE DatabaseWhen running at the best performance, it is essential to optimize the performance of the ORACLE database. Database optimization policies should be considered before information system development. The optimization policies generally

ORACLE DatabaseIt is a database system that everyone is very familiar with. Many users first purchase ORACLE databases when purchasing databases. Even so, ORACLE databases will inevitably encounter some problems and faults during operation, ORACLE

I. Introduction ORACLE partitioning is a technology that processes ultra-large tables and indexes. Partitioning is a "divide and conquer" technology. By dividing large tables and indexes into small pieces that can be managed, you can avoid managing

Oracle 11g R2The complete uninstallation method is as follows: run the deinstall. bat batch file of D: \ app \ Administrator \ product \ 11.2.0 \ dbhome_1 \ deinstall. The full Process Code is as follows: Checking for required files and

To improve query efficiency, we often make some optimization strategies. This article mainly introduces someOracle DatabaseBut it is very useful.Optimization StrategyTo help you. SQL statement Optimization This is easy to handle. You can find SQL

ModifyMax SDE connectionsThe method is as follows: 1. Set CONNECTIONS Parameters Set the CONNECTIONS parameter to your maximum number of CONNECTIONS. The default value is 48, which can be changed to 200. Ii. Modify the SharedSection parameter

We know that,Oracle clientYou can useNLS_LANG ParameterThe setting of the NLS_LANG parameter varies on different system platforms. This article first introduces the composition of the NLS_LANG parameter, and then introduces the settings of the

SGAAndOracleWhen the instance is enabled, the system allocates an SGA instance and recycles the instance when it is disabled. All the processes on the server and the background history of Oracle can be visited by SGA. The local process has the

InLinuxCan be implemented in the systemOracle10GAndOracle11Does the database of G dual version coexist? The answer is yes. In this article, we will introduce the installation and configuration of the coexistence of Oracle10G and Oracle11G databases

InAIX5LSystem InstallationOracle 9iFor databases, you must first consider system resources, including hard disk space, and then install the Oracle 9i installation media, such as JDK environment installation and environment variable settings, this

Oracle DatabaseMedium,Consistent getsIt is very useful when determining the performance of a SQL statement. Generally, comparing the performance of two SQL statements is not based on who executes the SQL statement for a short time, but on whose

Oracle Stored ProcedureYesReturns a result set using a cursor.Its implementation method is what we will introduce in this article. Next we will introduce it. First, we create the following content in sqlplus: 1. Package SQL> create or replace

We know that,Oracle 10gUsedData PumpData Dump) technology enables DBAs or developers to define database metadata objects) and quickly move Data to another oracle database. I. Role of data pump export to EXPDP and IMPDP) 1. implement logical backup

OracleDatabaseREAN recoveryOfData File recoveryThis is what we will introduce in this article. We know that apart from the system tablespace data file mount, other data files can be restored in the open (mount) state. Restoring data files in the

Previously we introduced:OracleDatabaseRMAN Incomplete recoveryBased on the time recovery, this article describes the Oracle database RMAN Incomplete recoverySCN-based recoveryTo help you. SCN-based recovery refers to the restoration to the