how to create relationship in oracle database

2.1.1unlike other database products, Oracle has its own unique system architecture. The Oracle system architecture is the framework of the entire ORACLE Server System and the basis and core for managing and applying ORACLE data servers. The

Tags: Java IDE monitoring process Purpose Archive Log connections arc POI memoryReference: http://www.zhetao.com/content240 In real-world development applications, about Oracle databases, it is often heard that a database is created, a instance is created, and a instance is started. Actually ask them what is the database, what is instance, most likely they give

. For example, grant role to user, or grant insert on table to user;.Standard SQL statements given in MOS:To create a role:Create role To assign a role permission:Grant To reclaim permissions from a role:Revoke Assign a role to a role or user:Grant 2. Second, connect and resource are the built-in roles of the two systems, and the DBA is tied to the relationship.For some posts, permissions can be divided into two categories:System permissions: The syst

main purpose of mirroring (or backup): When the primary database is disconnected or encounters a fault, we hope the system can return to the status before or before the backup. How can this be achieved? We can implement it automatically or manually. To achieve this, you need some completed settings. In MSSQL, automatic fault recovery is required to return to the original state in HA mode. The transaction security is full, the data transmission is syn

fields in the table to improve query performance. Sequence: a set of regular integer values Synonym: alias of an object Name: it must start with a letter. Can contain letters, Data, underscores, $ ,# Objects in the same solution (User) cannot be renamed. Oracle reserved words cannot be used Supplement: tables in Oracle databases are divided into user-defined tables and data dictionary tables. User-Defined

Create a local Duplicate database. The path of the newly created file is different from that of the target database, and the initialization parameter DB_NAME of the auxiliary instance cannot be the same as that of the target database. 1. Create a key file for the secondary i

Create a log file in oracle and an oracle Log File The syntax for creating a log file is as follows: Alter database database_name add logfile [group group_number](File_name [, file_name [,...]) [SIZE number] [reuse]; The syntax is described as follows; Group group_number is the ID of the specified group in the log file

exp/imp data pump export includes four modes: export table, export scheme, export tablespace, and export database. With the theoretical support, we will start the actual practice below. Expdp export Oracle Database 1. Creating Directory under sqlplus allows us to flexibly read and write files in Oracle databases, grea

Character Set issues in Oracle DMP Import/export, database operations, etc. Opening: Because to locate a garbled problem about DMP file Import, I began a long way to search the Oracle character set, and there are countless articles on the internet about Oracle character set, but this article is really my favorite, i

Tags: blog image number log simple BSP database operation Alt HTTPDatabase access Technology ADO The data in the database is extracted into memory and presented to the user to seeIt is also possible to write in-memory data to the database is not the only database access technology, but it is the lowest level of

update_db20140715. Execute the following command to perform the upgrade. $ Cd/home/oracle/update_db20140715 $ Unzip-o update_db.zip $ Cd update_db $ Export NLS_LANG = AMERICAN_AMERICA.UTF8 $ Sqlplus "User Name/password" > @ UPDATE. SQL > Exit How to back up a database from an oracle database

Label:CREATE Database Link Test_dblinkCONNECT to SJZX identified by SJZXUSING ' (DESCRIPTION =(Address_list =(ADDRESS = (PROTOCOL = TCP) (HOST = 10.176.150.201) (PORT = 1521)))(Connect_data =(service_name = ORCL)))‘; Database Link OverviewDatabase link is an object that defines a path to another database, which allows you to query remote tables and execute remote

the Internet. It is determined by the database administrator to better manage the distributed database. Of course, to facilitate management, it can be equal to the domain of the Internet. Global_name:For the unique identifier of a database (Oracle database), we recommend

article includes how to better understand how to perform mirroring or copying on another mainstream RDBMS, in Oracle's way. Try to learn and explain how your RDBMS works, and getting your attention from another pattern will help you figure out how your current database system works. For example, I found the relationship between the Oracle archiving model and the

from the source machine. -- Edit the pfile and modify the storage location of the control file. 8. Change any Oracle Home pathreferences to use the new Oracle Home path on the Linux x86-64 system. likeuser_dump_dest, background_dump_dest, core_dump_dest etc -- Modify other parameters in pfile, such as user_dump_dest, background_dump_dest, and core_dump_dest. 9. Note: This steps is required ifthe target s

) db_unique_name = chicago '''comment = ''' scope = spfile "; Shutdown clone immediate; ---------------- when using this method to create a slave database, we only need to configure three parameters, including db_name, db_unique_name, and block_size, start the slave database to the nomount state. The main purpose is to allow rman to copy the spfile and password f

FILE NOT FOUND SYS @ prod> select FILE #, NAME from v $ datafile; FILE #NAME -------------------------------------------------- 1/u01/oradata/prod/system01.dbf 2/u01/oradata/prod/sysaux01.dbf 3/u01/oradata/prod/undotbs01.dbf 4/u01/oradata/prod/users01.dbf 5/u01/oradata/prod/example01.dbf SYS @ prod> select file #, checkpoint_change # from v $ datafile_header; FILE # CHECKPOINT_CHANGE #----------------------------1 9756492 9756493 04 9756495 975649 Make sure file 3 is damaged. Cp/home/

Let ' s say we is going to develop a application for a bank, or any other enterprise, this application need a DB. And we decide to choose Oracle 12c. Then we make a plan: Application is to Wbbank, so name is Wbbank Application DB is running in a individual PDB Application DB have its own tablespace There is both users for this DB, one was to administrate objects of the db (Schema), which was used by DBA and other one is To operate

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Create a tablespace in Oracle and create a user //Create temporary tablespace CreateTemporaryTablespace test_tempTempfile'E: \ oracle \ product \ 10.2.0 \ oradata \ testserv

Use commands to create an oracle11G database and an oracle11g Database This document describes how to create an oracle database that complies with the OFA specification using the create