Oracle

I. Database Name What is a database name? The database name is the ID of a database, just like the ID card number of a person. He uses the DB_NAME parameter to indicate that if multiple full databases are installed on a machine, each database has a

Oracle 11g Release 1 (11.1) tablespace -- simple management permanent tablespace this article content create tablespace view tablespace modify tablespace availability/read/write Delete tablespace www.2cto.com suppose database is Oracle 11g, log on

1) database name DB_NAMEThe internal mark of the Oracle database. It also exists in the binary control file and parameter file pfile. Therefore, it cannot be modified after the database is installed.You can see it in pfile.DB_NAME = ora9i # ora9i

The following three statements under alter system flush "oracle cache" are designed to refresh the oracle cache. Here is a summary. 1) alter system flush global context description: www.2cto.com for multi-layer architecture, such as: the application

In oracle, INSERT corresponds to the LOCATE function usage in db2. The SQL code www.2cto.com eg: SELECT CONCAT (FIRST_NAME, LAST_NAME) FROM T1 eg: SELECT CONCAT (FIRST_NAME, LAST_NAME) FROM T1 INSERT function Syntax: the INSERT (ARG1, POS, SIZE, ARG2

Oracle experience 5 -- add, delete, modify, query, and @ oracle transaction processing @ Case Analysis1. add, delete, modify, and query DML (Data Manipulation Language-Data operation Language) in Oracle can be executed under the following conditions:

Oracle, mysql, teradata paging method/*** add paging information to the original SQL statement * @ param SQL the SQL statement to add paging * @ param start the start position of the record * @ param limit the record to be displayed number * @

PLSQL connection oracle error ora-12154 tns cannot resolve the specified connection identifier solution when doing the project oracle is used but with plsql prompt ora-12154 tns cannot parse the specified connection identifier, however, running

Step by step to clean up the oracle 10g RAC environment that fails to be installed due to problems with the previous installation of clusterware, so reinstall the environment, but each time you execute the root. sh always has Failure at final check

Linux/Unix shell scripts Execute SQL statements across servers and instances during database O & M, it is inevitable that you need to query databases across multiple servers and multiple Oracle instances. For example, you need to check the value of

Parallel recovery of large oracle transactions leads to database performance degradation-high cpu usage-processing ideas parallel recovery of large oracle transactions leads to database performance degradation-high cpu usage processing ideas large

The following is a detailed analysis of the character set in Oracle. For more information, see Basic ConceptsCharacter set ):Is a collection of all abstract characters supported by the system. A character is a general term for all types of texts and

Oracle databases have three standard backup methods: Export/Import (EXP/IMP), hot backup, and cold backup. Exporting spare parts is a logical backup, while cold backup and hot backup are physical backup. 1. Export/Import (Export/Import) The Export

Directory structure:1 _ crazy Java _ crazy software _ Xiao wenji instructor _ Oracle_Oracle Server InstallationThe video includes: Download, installation, uninstallation, and precautions for Oracle10g servers.2 _ crazy Java _ crazy software _ Xiao

1. First create a directory:Create directory name as 'a directory on the database server ', for example:Create directory alias as 'd: \ Server directory name ';Put the imported or exported files in this directory.2. Export and Import Take SID = orcl

"In the latest release 10.2 Oracle changed these default values. The memory allocated to a single SQL operator (_ smm_max_size) is limited:For P_A_T For P_A_T between 500 MB and 1000 MB the parameter _ smm_max_size = 100 MFor P_A_T betweeen 1001 MB

The ORACLE tutorial is: Oracle database security policy. With the popularization and improvement of computer network applications, Oracle database applications are becoming increasingly popular in various fields. It features excellent performance

The ORACLE tutorial is: Dynamic Oracle cross tabulation. Oracle is the most widely used large database, while Oracle Database Design in the paradigm can greatly reduce data redundancy, making database maintenance more convenient. Unfortunately, data

The ORACLE tutorial is: how to restrict SQL Server from connecting only the specified machine. Q. How can I restrict access to my SQL Server so that it only allows certain machines to connect?(V1.0 19.10.1998)How can I restrict my SQL Server from

Basic ConceptsCharacter set ):Is a collection of all abstract characters supported by the system. A character is a general term for all types of texts and symbols, including Chinese characters, punctuation marks, graphical symbols, and numbers.