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Tags: default CTE time document call amp count should ons OCM the new question of the exam. There is a need to create a keep stored table, but there are some differences as to whether the parameter should be changed. Some people say that ASMM will take the initiative to allocate memory to the keep, the number of parameters will not be set. See documents and Asktom. Also enveloping, say what all have, or come to the actual test it: Sql> Col COMPONENT f

independent consulting site, covering the MySQL and so on, is worth a look at http://www.pythian.com/20. Needless to say, the overseas play Oracle very famous website, many Daniel all in the inside HTTP://WWW.ENKITEC.COM/21. Ibid. http://evdbt.com/22. Ibid. http://www.oaktable.net/23. HTTP://WWW.ADELLERA.IT/BLOG/24 of Italy. Very good website, there are also many valuable paper HTTP://ANTOGNINI.CH/25. Ibid. http://www.dannorris.com/26. There's a lot of good stuff in there, too, http://www.morga

, At the same time, career depth is bound to increase. This is the normal industry progress, challenges to the participants, but also give the struggle and leaders more opportunities.From the 20 years of Oracle DBA Exploration, the road has been very broad: b, solve the user problem, can quickly grow into a technical field expert; in technology, transformation architects, designers, leading the team and application progress; in management, can lead a puma, data-dr

Tags: Oracle OCM manual repository Cold Backup tar1. Modify the login identifier and default editor (not required)Modify $oracle_home/sqlplus/admin/glogin.sql to add the following at the end of the file:set sqlprompt ' _user ' @ ' _connect_identifier> 'define _EDITOR=VI2. Create initialization parameters (to start a DB instance)[Email protected] dbs]$cat init.ora|grep-v ^$|grep-v ^# > Initprod.ora[[email protected] dbs]$ lltotal 32-rw-r-----1 Oracle O

-hold-a Master certification in oracle9i Database, simply upgrade your Oracle certified Professional CR Edential to Oracle Database 11g or Oracle database 12c and your earlier Master certification would remain active.If a retired expert credential, upgrading to a later version of that expert credential would keep only the earlier Expert credential (s) active.What happens if I allow my credential to become inactive? Can I follow an upgrade path and is reactivated, or do I need to start over?If yo

Secret leaked" wind brother full Oracle Database DBA Senior Engineer Training Course-courseware content 2.gif"Top Secret leaked" wind brother full Oracle Database DBA Senior Engineer Training Course-courseware content 3.gif"Top Secret leaked" wind brother full Oracle Database DBA Senior Engineer Training Tutorial-Courseware list 1.gif"Top Secret leaked" wind brother full Oracle Database DBA Senior Engineer Training Tutorial-Courseware list 2.gifHigh-paying employment course materials-beyond OCP

Classification of databases1. Small database access, foxbase load is small, 1000 people, such as message book, within the cost of thousands of dollars2. Medium database SQL Server, MySQL, Informix Daily visit volume 10000--15000, cost in million3. Large database Oracle, DB2, Sybase load can handle massive data security is high, itself expensiveWhat kind of database do you choose to do the project based on:1. Size of the projectA. How large is the load and how large is the userB. CostC. Security-

OCM test new topic, need to create keep stored tables, but in this parameter should be modified, there are some differences, some people say ASMM will automatically assign memory to keep, this parameter is not set.Look at the document and Asktom, but also enveloping, say anything, or come to the actual test it:Sql> Col COMPONENT for a30sql> select Component,current_size/1024/1024| | ' MB ' MB from v_$sga_dynamic_components where COMPONENT in (' DEFAUL

, the problem is in the details, here warning, remember, the system and database version, the number of bits to match.Let the installation toss for a while and suddenly want to talk about what a DBA is, although the current installation is just one of the small demands of the DBA (which may even be said to be unimportant, but still wants to say).When it comes to this, it is inevitable to re-comb the future, and put a positive attitude. And for the needs of today's DBAs, but also reminds me of th

Thunder Fighter is the latest fiery air combat shooting game, Liu said: Please carry our Thunder fighter for cross-platform data migration-the table space can be transmitted, but also hesitate to board, please immediately boarding, open the Endless challenge mode!You can use the Transportable table space feature to copy a collection of tablespace from one database to another.The transportable representation space is useful in a number of scenarios:Export and import partitions for a data warehous

Tags: OracleThe first part of Oracle Learning 1.oracle Introduction 1.1 Common database classification at present Small database: SQL Server,access (Microsoft) Medium database: MySQL (Swedish company), Sybase (US Sybase) Large database: Informix (IBM), Oracle (Oracle), DB2 (IBM) 1.2 Oracle Database Introduction Oracle database is by the United States Oracle Company's products, the company since 1970 began to develop databases, the current database has been developed to Oracle 11G, the more popul

in. Oracle does not automatically enumerate the servers in the network and needs to read the TNS configuration file to list the configured server names.The profile name is typically: Tnsnames.ora, default path:%oracle_home%\network\admin\tnsnames.oraIn the Cgdb and STDCG is the corresponding tns,host is to point to the database server IP, of course LAN with the computer name is also possible. When you create a connection service to a database server through client Net Manager, you actually add

You want to get the employee table using Top-down hierarchical hierarchical data, and that's obviously the answer is: E Finally, the next example adds Astart with clause to specify a root row for the hierarchy, and a order byclause using the Siblings keyword to preserve ordering within the hierarchy: Hr@ocm> SELECT last_name,employee_id, manager_id, Level 2 from Employees 3 START with employee_id =100 4 CONNECT by prioremployee_id = manager_id 5

you wish to ignore the Oracle configuration Manager configuration provide empty string for user name.Myoraclesupport_username=#Provide the My Oracle support PasswordMyoraclesupport_password=#Set this to true if you wish to decline the security updates. Setting this to true and providing empty string for My Oracle support username would ignore the Oracle Configuration Manage R ConfigurationDecline_security_updates=true#Set this to true if My Oracle support Password is specifiedSecurity_updates_v

on MVC and MTV First,MVC M: Model , the model is the data model, which is responsible for data access ; V: View , view, responsible for the presentation logic of the page ; C: Controller , Controller, responsible for the processing of business logic ; Second,MTV M: Model , the model is the data model, which is responsible for data access ; T: Template , template, responsible for the presentation logic of the page ; V: View function , view functions, responsible for the processing of business

%\network\admin\tnsnames.ora The Cgdb and STDCG in the above figure are the corresponding tns,host is to point to the database server IP, of course, the local area network with the computer name is also possible. When you create a connection service that connects to a database server through client Net Manager, you actually add a TNS content to the Tnsnames.ora file.Detailed configuration file for TNS The configuration file for TNS includes both the server side and the client part. The server

gradual transformation of the DBA. So for fresh students, I do not recommend a direct challenge to the DBA post, it is best to engage in a period of time development work, if the work of the database management is more interested in the work process can continue to learn database knowledge, help the team solve the problem of the database, When a decision is made to be a DBA or to have a clear DBA requirement at work, choose from database Concepts, functions, management, development, and tuning

, and then use the account and password to log in. Oracle does not automatically enumerate servers within the network, and you need to read the TNS profile to list the configured server names. The profile name is generally: Tnsnames.ora, default path:%oracle_home%\network\admin\tnsnames.ora The Cgdb and STDCG in the above figure are the corresponding tns,host is to point to the database server IP, of course, the local area network with the computer name is also possible. When you create a conne

addition, you can specify a database with a full path List of files [h:\app\administrator\oradata\orcl,h:\app\administrator\flash_recover Y_AREA\ORCL]: If the quick recovery area is configured on the file system, specify its location. If the ' ORCL ' subdirectory is found, it is deleted In addition to the subdirectory. [H:\app\Administrator\flash_recovery_area\ORCL]: Specify the database spfile location [H:\APP\ADMINISTRATOR\PRODUCT\11.2.0\DBHOME_1\DATABASE\SP Fileorcl. ORA]: Database Check con

submission Then delete the corresponding data file Executes alter system flush Buffer_cache and prompts you to query the table again; ERROR at line 1: Ora-01116:error in opening database file 4 Ora-01110:data file 4: '/HOME/ORACLE/ORADATA/OCM/USERS.DBF ' Ora-27041:unable to open File Linux error:2: No such file or directory Additional Information:3 Performing a recovery script Run { Allocate channel D1 device type disk; SQL "ALTER DATABASE datafile 4