Oracle

The situation encountered at work is simple:--First give the user permission to create Dblink.Grant resource to ODS_NWSC;Grant CREATE database link to ODS_NWSC;--Create the Dblink code below the user who gave the permission.CREATE Database Link LINK_

In the development of the report, it is unavoidable to encounter the problem of row to column.For example, in the case of Scott's EMP in Oracle, you can use "Row to column" to count the number of people in each position in each department:The

Automatically disconnects after a database is started (about 10 minutes)method One, directly modify the resource configuration fileThree steps to complete in a sqlplus environment.The first step is to query the resource file and find the profile

Package util;Import java.sql.Connection;Import Java.sql.DriverManager;Import java.sql.PreparedStatement;Import Java.sql.ResultSet;Import java.sql.SQLException;public class Dbconn {public static Connection getconnection () {Define a Connection

Backup and recovery are frequently encountered operations, logical backups, and physical backups. Physical backups are also divided into cold and hot backups.One, logical backup, recoveryRefers to the use of the exp command, simple, does not affect

In the system patrol, found that the backup of the database is not properly backed up, aware that it may be a problem monitoring, through the database RAC management users to see the RAC1 VIP stopped working.Oracle11gr2_rac for_redhat6.3The process

About Oracle CVU and CvuqdiskDownload links for CVU:Http://www.oracle.com/technetwork/products/clustering/downloads/cvu-download-homepage-099973.htmlCvuqdisk is the installation package under the Linux platformDocumentation:Runinstaller hangs at

GRANT Privilege [, ...]On object [( column [, ...])] [, ...]to {public | username [, ...] } [with GRANT OPTION]These fields are compatible with the Postgres implementation, except for the following exceptions:Privilege SQL92 allows you to declare

/// ///access to ERP fixed assets for data extraction/// /// Company Code /// Application Environment /// language /// account Set code: ' 01 ', ' 02 ', ' the ' /// Fiscal Year /// accounting

View the lock table process SQL statement 1:Select Sess.sid,sess.serial#,Lo.oracle_username,Lo.os_user_name,Ao.object_name,Lo.locked_modeFrom V$locked_object Lo,Dba_objects AO,V$session Sesswhere ao.object_id = lo.object_id and lo.session_id =

SELECT * from V$nls_parameters;Sqlplus "/As SYSDBA"Sql> SHUTDOWN IMMEDIATESql> STARTUP MOUNTsql> ALTER SYSTEM ENABLE RESTRICTED SESSION;sql> ALTER SYSTEM SET job_queue_processes=0;sql> ALTER SYSTEM SET aq_tm_processes=0;sql> ALTER DATABASE OPEN;sql>

Sa--declaring a jobDECLAREjob2014_12_16 Number;BEGINDbms_job. SUBMIT (Job2014_12_16,--This parameter is out type 'syncv5;', To_date (To_char (sysdate+1,'MM/DD') ,'MM/DD'), 'TRUNC (Last_day (sysdate) + 1)');--'

The ultimate goal of SQL optimization is user experience-to get users on page data in the shortest time possible. Therefore, execution time is an important indicator of SQL optimization. In SQL queries, I/O operations account for the most system

Plsql garbled how to deal with:Configure environment variables:Nls_lang simplified Chinese_china. ZHS16GBKStart plsql always Prompt "Ora-12154:tns: Unable to resolve specified connection identifier "1, configuration plsqlClick Preferences-connection-

Method One: PublicString clobtostring (Clob Clob)throwsSQLException, IOException {String restring= ""; Reader is= Clob.getcharacterstream ();//Get the FlowBufferedReader br =NewBufferedReader (IS); String s=Br.readline (); StringBuffer

Official Document: http://docs.oracle.com/cd/E11882_01/server.112/e41573/technique.htm#PFGRF941381. ADDM will give the optimization advice2. How to find system bottlenecks:Step1. Is the system's response time acceptable when a single user or system

Whether the Oracle query records are efficient or not. Recently, we need to optimize the efficiency of the Oracle database, and then check a lot of efficient methods on the Internet to determine whether the record exists.There are many suggestions

[Translated from mos] For A New db, zero rows are returned for the query of Dba_Feature_Usage_Statistics.Source:No Rows Returned from Dba_Feature_Usage_Statistics For Newly Created Database (Doc ID 1943234.1)Applicable:Oracle Database-Enterprise

Modify the oracle 10g Character Set and oracle10 g Character Set Modify the character set of oracle 10 GB Modify the database character set to ZHS16GBK.View server character sets SQL> select * from V $ NLS_PARAMETERS; Modify: $ sqlplus/nologSQL>

Steps for automatic Oracle backup and automatic oracle backup Data is the core part of the application. If the program breaks down and another machine can be re-released, once the data is lost, the loss will be irrecoverable. After the program is