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Oracle user password. Check the limits.conf file parameters, in my version, there is no need to change. But to add a line of Oracle stack 10240 Check the sysctl.conf parameter and do not need to modify it in my version. Finally, run the next file. [Learn] Install Oracle Enterprise Linux (v5.7)-(1/5) http://www.cnblog

Label: Other: The memory in the computer is linear, one-dimensional. Length ("'count the number of characters, not the number of bytes the date type and numeric type data in Oracle can do operators (>,=,) comparison occurs when the Oracle database is started: Ora-12514 The error number of the hint. Solution: Go to Oracle install directory below to find: C:\

transactions. Remember:The larger the table, the more benefits it will obtain from the table index.. Table 2 is the time it takes to perform various DML operations when using and without indexes on a table with millions of records: 3. How to create an index The syntax for creating an index is as follows: Create index index_name on table_name (column_name ); If you want to index more than one table, the syntax is as follows: Create index index_name on table_name (first_column_

;alterdatabasecharactersetinternal_use UTF8 ;　　sql>shutdownimmediate;　　sql>startup;-The last word in the penultimate line above is the encoding format we want to change. You can enter additional encoding formats. (3) View the SID of Oracle Run--cmd--Login database (based on user name and password)--input command select instance_name from V$instance; (4) View port The def

Environment 11.2.0.3.7 rac on HPUX-IA 11.31, BUG encountered when using shared public database link. Only this record# DB ALERT LOGTue Jun 28 09:09:21 2016Thread 1 advanced to log sequence 86806 (LGWR switch)Current log #4 seq #86806 mem #0:/dev/yyd_oravg02/ryyd_redo04Tue Jun 28 09:09:26 2016Archived Log entry 134948 added for thread 1 sequence 86805 ID 0x47ccb6a dest 1:Tue Jun 28 09:10:53 2016Global Enqueue Services Deadlock detected. More info in fi

[Gu JIU Jian] Oracle knowledge point sorting (4) SQL statement DML and DDL, dmlddlLink navigation for this series: [Lone sword] Oracle knowledge point sorting (1) Table space and users [Gu JIU Jian] Oracle knowledge point sorting (2) database connection [Gu JIU Jian] Oracle

Starting from server construction (4). installing and configuring oracle in Linux Papayas20070417 I. Sequencing As early as the Virtual Machine redhatlinux9 installation oralce92 whole process "article, (link: http://blog.csdn.net/liwei_cmg/archive/2006/05/28/759286.aspx)The Installation Process of Oracle in Linux is described in detail. However, I tried again to

Install Oracle 10g graphic tutorial in redhat 4, -- Note: This article only installs Oracle and does not create a database. I. Install a readhat4 System in the Virtual Machine Ii. IP Address Allocation The configured IP address is as follows: 3. create user groups and users Note: oracle users should have the same uid.

When you are learning Oracle, you may experience an Oracle index scan problem, and here's how to solve the Oracle index scan problem, and share it here. There are 4 types of Oracle index scans, depending on the type of index and the WHERE constraint: Indexed unique Scan (in

Reference: ORACLE 10G official documentationReference: A Bone theory version 2012 Oracle free Video TutorialFirst, install Linux1, note partition: Memory is less than 4G, then swap partition = memory, memory is greater than 4G, swap partition = memory size;2, TMP directory is greater than 10G;3. root directory >25G;4, the development of the toolkit all selected;5

hard] Install Oracle Enterprise Linux (v5.7)-(2/5) in VMware http://www.cnblogs.com/chanchifeng/p/6817951.html [study hard ] Install Oracle Enterprise Linux (v5.7)-(3/5) http://www.cnblogs.com/chanchifeng/p/6818010.html in VMware [Learn] Installing Oracle Enterprise Linux (v5.7)-(4/5) http://www.cnblogs.com/chanc

Tags: cat sys for hand interval SNR family local moveOracle NET 1. The client obtains the specific connection information of the server through the @ora10g name to the Tnsname.ora file. 2. The client sends a link request to the server via the description in the Tnsname.ora server side 3. After the server's listener receives the connection request, verifies the validity of the requested service 4. Server-side generates a service process and client proc

segment_name = ' T2 ' Result: 242) determine how many data blocks in the table contain data;Select COUNT (Distinct (Dbms_rowid.rowid_block_number (ROWID)) block_ct from T2 results: 173) Execute the following query and view the trace information (see Oracle Performance Analysis 1 for information about trace)alter system flush buffer_cache;--Clean Cache select * FROM t2 where id = 0The trace information is:Call count CPU elapsed Disk

Problem 1: Unable to activate the Ethernet device.The error message is "cannot activate network device eth0! Device eth0 has different MAC address than expected, ignoring ." Solution:The MAC address reported by ifconfig does not match/etc/sysconfig/network-scripts/ifcfg-eth0. You can use the new MAC address to update the fileSystem-config-networkThe tool detects new MAC addresses. Problem 2: The ocfs2 configuration file cannot be generated.When you try to generate the ocfs2 configuration file,

Soccer with Oracle Series (4): From Brazil fiasco in Germany, think of the difference in RAC topology comparison!Pre-review:Originally wanted to say tonight, back to think, it should be the second semi-finals this morning will be war! First to reflect on the previous game, the first of the 8 teams have all been promoted to the eight, but also show the technical effectiveness of the eight processes (haha, no

users to do the following: 1. Determines the space allocation of database entities; 2. Set the Space share of database users; 3. Control the availability of some data in the database; 4. Distribution of data between different devices to improve performance; 5. Back up and restore data. When a user creates a database entity, the user must have the corresponding power in the given tablespace. To manipulate the data in an

Oracle Study Notes (4) ------------ learning route Summary It was a little difficult to learn Oracle, so I found some learning routes on the Internet to learn regularly, which is more efficient and shared with you. Concepts|New Features_________________|_______________| |Developer DBAApplication Backup RecoveryDev Guide(Fundamentals) Concepts| |PL/SQL User Guide

Mount; (database starts in Mount mode)Sqlplus>alter database Archivelog; (starting a DB archive)Sqlplus>alter database open;Sqlplus>archive log list; (see if the archive is already open)Database Log Mode Archive modeAutomatic Archival EnabledSqlplus>select archiver from V$instance;Archiver---------------------STARTEDView Archive log file pathSql> Show Parameter Db_recovery_file_destThis article is from "Kaka West" blog, please be sure to keep this source http://whnba.blog.51cto.com/1215711/1596

Tags: IDT installation path logs pad ISP operation data img Install the example under P10404530_112030_linux-x86-64_6of7.zip decompression. Modify the software path for dbhome_1. Install the data, you can take the snapshot operation! Delete the installation files. Enter DBCA to create the database. In the root user, run the following 2 lines of script. When you run the secon

[Oracle] Data Guard series (4)-creating a physical standby database without stopping the master database needs to create a physical standby database of DG for a 24x7 production database, the master database must not be shut down. At first, it was impossible. Later, I checked the document and used the rman duplicate command to create a physical standby database online. The information of the master and slave