Oracle

Resource PreparationA host that has a CentOS 6.8 x86_64 system installed will need to install a desktop environment with Firefox. If only the command-line environment is installed, after configuring the Yum source, use the command yum groupinstall

-----Create tablespace----------Create Tablespace BdccsLogging datafile ' D:\oracle\product\10.2.0\oradata\bdccs\bdccs.dbf 'Size 50mAutoextend onNext 50m maxsize 20480mExtent management Local;-----Create user-to-table spaces------------------Create

If you use a SET TRANSACTION statement, then it must is the first statement in your transaction. However, a transaction need not has a SET TRANSACTION statement.Syntaxset_transaction::=http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_

The SQL statement executes the complete process:1. The user process submits an SQL statement: Update temp set A=A*2 to the server process.2. After the server process receives the information from the user process, the process allocates the required

Please do not put the backup script under the Backup_dir, add to the crontab timer run#!/bin/shExport Oracle_home=/u01/app/oracle/product/10.2.0/db_1Export ORACLE_SID=ORCLExport Nls_lang=american_america. Zhs16gbkExport

I. RAC background processLmon:lock Monitor Processes is also known as the Global Enqueue service monitorMonitor the entire cluster condition, maintain the memory structure of GCS monitor abnormal terminated processes and instances when an instance

A synonym is a database object that is an alias defined for a database object , and the primary purpose of using synonyms is to simplify the writing of SQL statements .The concept and type of synonymsSynonyms can be used to define an alias for an

ConceptWhat is an Oracle database?Basically, there are two main components of the Oracle database-the instance and the database itself. The instance includes some memory structures and background processes, while the database refers to disk

Memory structureIn modern computers, the CPU accesses memory more than a few times faster than the disk, so Oracle accesses the data as much as possible in memory, rather than directly modifying the data on the hard disk. Memory content is synced to

Installation Configuration 1 : turn off the private network firewall 2 : Run the installation file as administrator--"setup.exe" 3 : Set password where SYS user rights are greater than SYSTEM 4 : Prerequisite Check, if verification is successful,

[INS-20802] Oracle Net Configuration Assistant failedBaidu on the search for a half-day and did not find a reliable solution, finally can be installed to complete, after IThis error is reported through the SQL plus connection.I found a solution on

Server System for Windows R2 64-bit, because the C disk space will be full, to the C-disk of the Oracle DBF data file to migrate to the D disk, the steps are as follows:1. Enter CMD to start the Cmd.exe window2. Enter Sqlplus/nolog3. Input conn Sys/[

You can also use PL/SQLCreateDirectory "image" as 'e:\';--"image" to bring double quotes, many online without, I test error, and, ' E:\ ' is the server directory, non-local directory. User Authorization required: Grant create any directory to

The differences between Oracle DBA and SYSDBA are as follows:1. A DBA is a role that corresponds to the set of operations permissions on an object in an Oracle instance, and SYSDBA is a conceptual role that is a sign-in authentication identity.

1.pl/sql Developer 9 Check whether the client character set is consistent with the serverPreferences, options, check whether the client and server character sets matchChanges to 2.Windows environment variables take effect immediately3.ODAC12 change

1Installation Environment Install the database software on the Primary Library, and build the monitoring and instance, install the database software on the Standby Library, and build the monitoring, but do not build the instance.

One.DescriptionSome of the table data in the OLTP library is large and there is a constant amount of data added every month. Because historical data is not visited in this library, it is analyzed in 1 other OLAP libraries. Therefore, the historical

1. Disk partition, set up 13 partitions, corresponding ORACLE13 files respectivelyFdisk/dev/sdc2. Edit the 60.raw,rules file#vi/etc/udev/rules.d/60-raw.rulesaction== "Add", kernel== "SDC1", run+= "/bin/raw/dev/raw/raw1%N"action== "Add", kernel==

Oracle client connection remote Oracle service Chinese garbled problem, oracle Chinese When the local machine remotely connects to the remote Oracle service, the following retrieval statement is written: Select * from sys_employee Chinese garbled

Oracle SQL classical query expert Article 4 Oracle SQL classical query expert Article 4 This article is the fourth article on typical query of OracleSQL. It is just the author's own opinion. If you have any questions, I hope you can provide