Oracle

BackgroundWith the development of the database intrusion method, the attack on the database is not only for the database itself, but extends to the various building of the database (even middleware).As one of the core components of Oracle, TNS

Search the internet about the data types of comparison, there are almost no three database comparison, I wrote some of the comparison of the fields, if there is a wrong place, please feel free. Java fields Oracle Fields MySQL

Oracle DataGuard Study--dataguard failover caseOracle DG (Dataguard) is now a common database ha configuration policy. By implementing physical Standby and logical Standby, the data redundancy tolerance mechanism can be realized. There is no fast

Set power on (Linux) auto-start Oracle shutdown automatically shuts down Oracle1, switch to the root user, confirm that the startup file and the shutdown file is present[Email protected] bin]$ pwd/u01/oracle/product/10.2.0/db_1/bin[[email protected]

Type is the database object structure that we often use. In practice, we can define type types individually and then use them in PL/SQL code or data tables.In an accidental opportunity to let the author discover The trouble of using type types in

This problem has plagued me for some time when I just took over Oracle, and now I'm going to share the problem solving process.Oracle version: 11gR2OS Environment: Centos6.4Problem Recurrence:1. The database was written with a backup script with the

To_date ("String to convert", "converted format") The format of the two parameters must match, otherwise it will be an error. That is, the first argument is interpreted in the format of the second parameter.To_char (date, "convert format") converts

http://blog.csdn.net/xdweleven/article/details/38319351(1) des cryptographic functionsCreate or Replace functionEncrypt_des (P_text varchar2, P_key varchar2) return varchar2 isV_text varchar2 (4000);V_ENC varchar2 (4000);Raw_input RAW

Compare full and incomplete restores:A. Full recovery: Restores the database to its current state, including all committed data changes until the request is resumedSecond, incomplete recovery: Restore the database to the last point of time specified

First, common tools:Recovery Manager:rman can only perform hot sparing (mount or open state)Oracle Secure BackupUser-managed Backup: CP/DD [if=/of=/blocksize=]Ii. Name of RmanThe Rman name does not allow duplication, and%u is definitely not

Installation and configuration of PHP Oracle extended OCI8 under Linux systemImplementing a PHP program to access Oracle DBDate: 2014.09.02Write Liu Qunying (Qunyingliu) environment description : Apache version, PHP version, Oracle DB

Installing the Oracle 11.2.0.4 RAC, installing the Times in the grid error:[INS-41112] Specified network interface doesnt maintain connectivity across cluster nodesThere is no problem in trying to ping each IP address between nodes first.Because of

Imitating the example of Oracle performance diagnostics in two experiments, the book says that if you don't use relies_on, the change action on the object that the function depends on does not cause the result cache to fail operation (Result_cache

Transfer from http://hi.baidu.com/juanjuan_66/blog/item/cf48554c9331fbe6d62afc6a.htmlOracle Date Subtraction2012-02-10 12:18--months_between (DATE2,DATE1)Give the month of date2-date1Sql> Select Months_between (' 1 September-December-1999 ', ' 1

(1)-v$session_waitThis is a critical view of looking for performance bottlenecks. It provides any case where the session is currently waiting in the database (if the session is currently not doing anything, it shows its last wait event). When there

• List the actions that occur when you perform a table space point-in-time restore (TSPITR) • Illustrate the definition of terms used by Tspitr • Determine the conditions that are appropriate for using TSPITR as a solution • Determine the correct

Install oracle 11g and oracle11g in linux Oracle 11g Installation I. Environment preparation /15000 M /Tmp 4096 M /Boot 100 M Swap 4096 M /U01 remaining space                               2. Change the Host Name and IP address     3. install the

How to import dmp files in Oracle: importing dmp files in oracle The project started to get the dmp file, and the database used 10 Gb, but it was completely unsuccessful. Later, I decided to give it a try if I wanted to export the file at 11. If

Oracle Database Array Operation example, oracle Database example1. Create a bean object 1 -- CREATE bean object 2 create or replace type "fm_flowcphdtswjimpbean" as object3 (4 wf_no varchar2 (256), 5 wf_priority_level varchar2 (256) 6)2. Create a

Create a view in Oracle. Create a view in oracle. This section describes how to create a view in an oracle database. Oracle database objects include tables, views, sequences, indexes, and synonyms. A view is a logical table based on one or more