how to create relationship in oracle database

in the log buffer into the log file. The system has multiple log files. This process writes data to files cyclically. VII. Oracle Database1. The Oracle database is composed of operating system files that provide the actual physical storage zone for the database information. 2. The

Preface: In the process of Oracle operations, often use some dynamic views beginning with v$, such as v$session, once saw someone with v_$session, think someone else wrote wrong, didn't think Desc v_$session can see and v$ Session of the structure, and then found in the beginning of the gv$ view and so on. The opportunity to mount Oracle on a Linux system finally clarified the

------------------------------------------------------- Uc_phone U ut sys uc_phone -- Oracle automatically creates an index and associates it with a constraint. The index name and constraint name are the same. -- Verify the index Sys @ anqing2 (rac2)> selectindex_name, index_type, uniqueness, generated from user_indexes wheretable_name = 'ut '; Index_name index_type uniquenes generated --------------------------------------------- Uc_phone normal u

--------------------------------------------------------------------------Redo Size 384sql> CREATE table aa;create table AA *error at line 1:ora-00906:miSsing left parenthesissql> Select B.name,a.value from V$mystat a,v$statname b where a.statistic#=b.statistic# and B.nam E= ' redo size '; NAME VALUE------------------------------------------------------------- -------------Redo size 384sql> Redo i

, views, index sequence generators, synonyms, hashes, program units, database chains, and so on.Finally, consider the relationship between Oracle's user, tablespace, and data files:One user can use one or more table spaces, and a table space can be used by multiple users. There is no affiliation between user and table space, which is a logical concept for managing data storage, which is only related to data

", "wktext", "cs_bounds"3 from MDSYS. cs_srs4/ In addition, if you manually create a layer, the process is as follows: Drop table bzxx;Create Table bzxx (GID varchar2 (32) not null,Name varchar2 (20 ),Bznr varchar2 (400 ),Beiz varchar2 (600 ),Coor mdsys. sdo_geometry);Alter table bzxxAdd constraint pk_bzxx primary key (GID );Delete from user_sdo_geom_metadataWhere table_name = 'bzxx' and column_name = 'c

= 272.8 2.2 add processes to 1000 and observe the parameters of sessions and transactions. SQL> create pfile from spfile; File created. Modify the init file to 1000. SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. SQL> create sp

Tags: oracle password file passwordToday, a colleague received a task is to modify the database sys and the system user's password, the boss in the assignment when the task also brought with a sentence do not forget to synchronize the password file, so think of a few days ago wrote a blog about the Oracle password file, then just wrote how to

An exception occurs when the maximum number of jdbc cursors is exceeded. The relationship between oracle and jdbc has been improved. Record it for future reference. If you have any errors, please note. Oral An exception occurs when the maximum number of jdbc cursors is exceeded. The relationship between oracle and jdbc

older validations but still applicableEnter "Linux" in the search box. Click "Go"See also the Oracle Technology Network Validated deployments page Recommended: First:Second, run the 'cat/proc/partitions 'and 'dmesg' command to verify the lun.Third: Use the driver integrated with linux kernel in a possible environment. Do not use a third-party driver.Fourth: OCFS2 1.2 does not support online filesystem resize.Use OCFS2 1.4 or later to have resize enab