For large systems such as clustering and distributed, time and its synchronization are very important issues. The study of Redhat Linux and JRE (including Oracle JRE,IBM JRE) is summarized below.
1, the view of the time
The usual time can be
When the Oracle Listener service does not start, the following measures can be taken to resolve:
A, connect the host string, prompt no listener
Svrmgr> connect INTERNAL/ORACLE@ORCL;
Ora-12541:tns:no listener
svrmgr>
second, run the
The recent RP value was a little low, and yesterday began to install a 10g RAC. Encountered n many problems. After resolving the problem with the raw device, the error follows when the second node executes root.sh:
[Root@rac2
Physical structure of Oracle and logical Structure view the physical file path of the Oracle database must be viewed with commands, unless you have installed it yourself and have done all the security configuration, it is very likely that your
The most important function of this program script is to monitor the performance of the ETL by sending mail via Oracle's own process package:Oracle_sid=orclOracle_base=/opt/oracleoracle_home=/opt/oracle/product/10.2.0Export Oracle_sid oracle_base
Starting with oracle10g, Sqlplus provides a parameter option-prelim, using this parameter when the system is hang. We can connect to the SGA instead of the database, which means no session is created.
First, you can obtain system information
Reprinted from: http://blog.csdn.net/leshami/article/details/5917103The Oracle client connection to the Oracle database server looks different from the network configuration in SQL serve, except that all SQL Server runs on the Windows platform, so
Oracle Regular expressions use the introduction of regular expressions with powerful, convenient and efficient text processing capabilities. Ability to add, delete, analyze, overlay, insert, and reshape various types of text and data. Oracle
from:http://blog.csdn.net/pan_tian/article/details/7754598
API to Find Sales Order's subtotal,discount,charges and tax (oe_oe_totals_summary. Order_totals)
API for cancelling the Purchase Order (PO) Document (po_document_control_pub.
1 How to execute a SQL script file, this script file writes a series of sets of SQL statements, such as Sql.sql placed under D:\MyEclipse 8.6\workspaces\oasystem\webroot\sql.sql"CD D:\MyEclipse 8.6\workspaces\oasystem\webroot\>>sqlplus>>@ Sql.sql;2
Problem Description:Project feedback The response of one of the server business operations to the application payload is very slow, and logging on to the server finds that the W3WP process CPU continues to exceed 90%, even during low peak business
Different character sets cause problem resolution of date type displayAlter session set nls_date_language= ' AMERICAN ';Unlock Scott AccountAlter user Scott identified by Tiger account unlock;Distinct to remove duplicate rowsThe format of the basic
To synchronize data from Oracle in real time to MS SQL Server, you need to read and write data directly to SQL Server in Oracle, and you can install the Oracle database for SQL Servers component on the Oracle about how to install this component, the
1. Log in to PL/SQL DeveloperThis omits the installation steps for the Oracle database and PL/SQL Developer, and note that when you install the PL/SQL Developer software, do not install it under the program Files (x86) directory or you cannot start
In Oracle, the WM_CONCAT function is an aggregate function similar to the GROUP_CONCAT function in MySQL, but the Group_concat function is powerful and can define delimiters and sorts, and of course the so-called strong is relative, If we don't know
1 ORACLE mid-week related knowledge description 1.1 Date formatting functions To_char (X [,FORMAT]) : Press X toFORMATThe format is converted into a string. X is a date,FORMATis a format string that specifies the format in which X is
1 table_exists_action parameter descriptionWhen importing data using IMP, if the table already exists, drop the table before importing.When using IMPDP to complete the database import, if the table already exists, there are four kinds of processing
The supply of materials by consignment is a way for manufacturing to achieve zero inventory management. Put things in my place, when not, things or suppliers, when used, press the "installed" quantity to pay. This business model, for the
PLSQLPL/SQL developer is an Oracle Database DeveloperProgramIntegrated Unit Development Environment (IDE). With PL/SQL developer, you can easily create the server part of your client/server application. So far, you can do the following in the worst
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