Oracle

The previously used database is open source, on another computer installed on the time, incredibly, there is a time limit, only 30 days. Installed a lot of times are like this, so, 30 days a crack. Here's how to hack:Whether it is expiring or

A few things to note about EXPDP and IMPDP when using EXPDP and IMPDP:Exp and IMP are client tool programs that can be used either on the client or on the server side.EXPDP and IMPDP are server-side utilities that can only be used on the Oracle

First step: Stop all Oracle-related services in the Services windowStep Two: uninstall the Oracle software "All Programs--oracle installation directory--oracle install product--universal Installer"Step three: Delete the contents of the registry,

The two days of the company's project to use the Oracle database, installed when not installed right, error!Resolute unloading load, the results of incomplete unloading, Reload will error!Now take a note of Oracle's complete uninstall method to

Update two table associations include a word query1.update T2 Set parentid= (select ownerID from t1 where t1.id=t2.id);2.Update Tb_client_win_lost_report a set a.rolling_code_id=2where game_code_id=70000and exists(SELECT ' X ' from (select a.IDFrom (

Recently, some netizens have mentioned the problem of shrinking Oracle data files, which is a common issue that DBAs often encounter. Usually we need to shrink the corresponding data files to reduce the pressure from disk space and improve the

Oracle SQL Developer is an interactive development environment (IDE) for Oracle databasesOracle SQL Developersimplifies the development and management of Oracle databases。 SQL developer provides end-to-end development of a PL/s program, a script

The configuration of an Oracle RAC listener is slightly different from a single instance, but the principle and implementation methods are essentially the same. In Oracle, the TNS process is used to provide service registration for one or more

SELECT * from v_$circuit; view logical loops, share server connections, use Easy connect to displaySELECT * from V_$dispatcher; General configuration of threeOperation in SqlplusShow Parameter DispaAlter system set dispatchers= ' (PROTOCOL=TCP)

1 First, we open the "Tools" and "Options" menu, see the following interface, according to the OCI Library (oci.dll) path, navigate to the Navicat OCI directory, back up the files (by creating a new Bak folder in this directory, the "%dir%/ Navicat

How can you completely uninstall Oracle with an Oracle-brought uninstaller that does not fundamentally offload Oracle, leaving a hidden danger for the next installation? That is direct registry cleanup, the steps are as follows:  1, start-up,

The types of        data dictionary views are:user,all  and DBA, respectively. User_*: Information about the object that the user owns, that is, the object information that the user has created all_*: information about the objects that the user can

I. Introduction to Oracle1.Oracle is a relational database and is an RDBMS product that can be run in Client/server mode. In 2009, Oracle Corporation acquired Sun.2.Oracle is an object-relational database management system (ORDBMS).The main features

What are view "views"(1) A view is a virtual table(2) The view is based on existing tables, and the tables on which they are built are called base tables .(3) The statement that provides the data content to the view is a SELECT statement that can be

A large number of paged queries were used during the development of the project, and a lot of duplicate data appeared when you wanted to sort the data by date.This problem occurs because, in the data, the value of the date is not unique.We

in the work, the statements in the stored procedure are simply noted: /** determine the day of the week */ Select Decode (To_char (To_date (iv_date,' Yyyy-mm-dd ') ), ' Monday ', ' 1 ', ' Tuesday ', ' 2 ', ' Wednesday ', '

Create or Replace TriggerTri_org_departmentafterInsert or Update onbjlt.sys_org forEach rowDeclareV_uuidvarchar2( $);beginV_uuid:=Sys_guid (); ifInserting Then Insert intoKeyms. Key_department@TOBSMS_BETTERY_LOCAL. Regress. Rdbms. DEV. US.

– Collect Database InformationEXEC Dbms_stats.gather_database_stats;EXEC dbms_stats.gather_database_stats (estimate_percent = 15);– Collecting schema informationEXEC dbms_stats.gather_schema_stats (' SCOTT ');EXEC dbms_stats.gather_schema_stats ('

1.oracle Database Server Enterprise Edition installs a database instance by default, with 4 administrator accounts installed with the same username and password installed.2. Once the database instance is installed, we can create more than one table

Oracle configuration server, similar to the way we configure the Java environmentTo prevent garbled configuration:Variable name: Nls_langVariable value: Simplified Chinese_china. Zhs16gbkSelect the configuration of the database (important):Variable