= [Static registration] =Static registration can be configured through graphical net manager.The relationship between configuration options and related files in net manager:Profile sqlnet. oraService name tnsnames. oraListener listener. oraFor
How to automatically start Oracle over 10 Gb instance databases when Linux is started:
# Description: start or stop oracle./Etc/rc. d/init. d/functions# Oracle_envExport ORACLE_BASE =/u01/app/oracle/db10gExport ORACLE_HOME = $
I am used to the alter statements of Oracle and cannot use these statements in db2.
The example table is as follows:
Create table emp (id int, name char (20), salary decimal (); -- create table emp
The alter statement usage of db2 is as follows:
(1)
The restoration method for a database that loses archive log files is to extract data from a database that cannot be opened normally (because one or more database files are inconsistent with other files. Scenario: A disk is damaged and a database
The following are two implementation methods:
Method 1:
This method writes a txt file larger than 4 kb to a Clob object or reads it from the Clob field and creates a txt file to save the operation. These operations are achieved through multipart
After Oralce is installed in normal steps and dbca is used to create a database, an error is reported, as shown in:
The following error is reported in the Oracle Installation Log:
[Thread-40] [12:23:54. 055 CST] [BasicStep.
How Does Oracle search for fields containing a certain value in all tables of the current user?
Create or replace procedure MY_Pro_SearchKeyWord isV_ SQL VARCHAR2 (4000 );V_tb_column VARCHAR2 (4000 );V_cnt NUMBER (18, 0 );Cursor cur is SELECT
I. Hot Backup
Cold backup occurs when the database is shut down normally. When the database is shut down normally, it will provide us with a complete database. This article describes how to copy key files to another location during cold backup. The
Q & A from a foreign SNS website Quora: Which of the three file systems XFS, ZFS, and ext3 can produce the best performance with MySQL? Domas Mituzas, a senior Database Expert from Facebook, gave his own answer. He believes that MySQL is the most
MySQL page normal database file SQL garbledIf your database is originally gbk encoded, save the following code as a PHP file. Remember to fill in the following database name and passwordDefine ('db _ name', 'putyourdbnamehere '); // Database
This article discussesIBM DB2 With complete lab steps. This article tries to make readers understand the advantages and disadvantages of various database backup methods through specific experiments, and Master IBM DB2 Database backup and recovery
1. Install sqoop
Download sqoop-1.2.0.tar.gz (version 1.20 is compatible with Hadoop0.20)
Put the hadoop-core-0.20.2-cdh3u3.jar, hadoop-tools-0.20.2-cdh3u3.jar into the sqoop/lib directory, the two jar packages are out of cloudera company, you can
# By default Redis does not run as a daemon. Use 'yes' if you need it.# Note that Redis will write a pid file in/var/run/redis. pid when daemonized.# Redis does not run as a daemon by default. You can modify this configuration item and use yes to
Materialized View synchronization count 1. Usage
Now we need to synchronize some data in the production database to the Data Warehouse. Considering the cost and convenience, we need to regularly refresh the materialized view for data synchronization.
When a traditional outward scaling method becomes popular for MySQL, let's see what we have to expand (cheap memory? Quick storage? Better power supply efficiency ?) It will become very interesting. There are indeed many options here-I may encounter
This article mainly discusses the problems encountered during the entire RAC installation process and how to solve them.
Error 1:
Shared disk configuration issues. If the shared disk contains content, it may cause an error when executing root. sh
1. Architecture
In Oracle 10g, the process for transmitting logs to the standby node database is ARCH and LGWR. (In 11g, LGWR is replaced by LNS, but I'm not sure if it is LGWR in 10g !)
The slave node receives logs by using the log_archive_config,
To simplify the use of Oracle on personal computers and avoid occupying unnecessary resources, you do not need to install the Oracle client. Method: use Oracle InstantClient to connect to the oracle database
1. Download the corresponding program,
Recently, the company needs to switch the Oracle database to another server and use EXP and IMP to export the import tool. After a long period of time, an error is returned... All kinds of tangle... Therefore, a simple cold Backup recovery mechanism
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