Oracle

Triggers are blocks of code that are executed automatically when a particular event occurs. Similar to stored procedures, but users cannot call them directly. Triggers are a technology provided by many relational database systems. In Oracle systems,

Implementation objective: To avoid data loss or errors, a scheduled backup of database data How to Implement: Oracle Export +windows Task complete Learning methods: The Prophet, then know the reason why Implementation process: 1. Create file

Many DBAs are still at Oracle 9i or 10g, possibly because of the Oracle 11g price issue. This article will explain the installation of Oracle 11g under Windows 7, and I hope you can see some of the new features of 11g. Recently unloaded their own

The 1.IOE IOE are IBM, Oracle, EMC, or, more specifically, the combination of IBM minicomputer, Oracle databases, and EMC storage devices. These troika constitute a complete commercial database system from software to hardware, which can be said to

ORACLE 10g Download Address Oracle download also requires user name I registered a convenient download for everyone to use user:wangdetian168@gmail.com pass:qwe123qweThe code is this, it's not going to move, and people don't have to help me get my

However, when the user uses the like statement in a large table, it is found that the query statement is running very slowly. What is the cause of this? In fact, whether it is like keyword, if the use of matches keyword, if in a large number of data

tuning rules that every Oracle DBA should follow Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the

Release Notes:Server version: Windows Server R2 SP1 (virtual machine) client version: Windows 10 Home EditionProblem Description:When using Windows Remote Desktop Connection, the error described below, 1, is not resolved after reconfiguring the

Because Oracle 12c uses the CDB-PDB architecture, similar to Docker, multiple pluggable-db can be loaded within the CONTAINER-DB, so additional configuration is required after installation to be used.First, modify the Listener.ora, Tnsnames.ora# #

Oracle 's system is too large. For those who have just started to learn, it is inevitable to have some sense of how to start. After a semester of learning , we have a deep understanding of Oracle Learning and have learned some of the main knowledge

Last night want to follow Oracle statement, online someone recommended toad, download to try, probably write down the experience it:First, the overall feeling1, Icon +1s, and after the start of "gung", in the mysterious power from the east,

Import SQL files into powerdesigner (convert Oracle SQL files to MySQL) Set xxxxxx. the procedure for importing the database structure of the SQL file to powerdesigner is as follows: Step 1: export the table structure (no table data, as

Oracle Portal developer kit (PDK) IntroductionPDK Software & Utilities The Oracle Portal developer kit (PDK) is a free component of portal developer services. the PDK is the framework for seamless integration of new and existing applications into

1.2 manage jobs1.2.1 enable jobs Because the enabled parameter is not explicitly specified during job creation, the job is not automatically executed by default even if start_date is specified. In this case, the DBMS_Scheduler package provides a

In Oracle, fields of the lob (large object, large object) type are increasingly used. This type of field has a large capacity (up to 4 GB of data), and a table can have multiple fields of this type, which is flexible, applicable to business areas

Ado. net Connect to SQL ServerThe SQL Server. NET Framework Data Provider supports connection string formats similar to OLE DB (ADO) connection string formats.Using (sqlconnection connection = new sqlconnection (connectionstring )){Connection. open (

The ORACLE tutorial is: several methods to optimize the design of Oracle database tables. Preface Most Oracle Database performance problems are caused by unreasonable Database design. Only a small number of problems are rooted in the unreasonable

Oracle OAM implements Angular JS front-end application SSO Single Sign-On tutorial, oamsso Background: With the development of the front-end framework, many front-end applications use Angular JS to implement front-end portals. How to Use OAM to

Oracle 11g EM Dbconsole reconstruction tutorial, 11 gdbconsole Overview: You can use command lines and graphical interfaces to manage the daily management of oracle databases. command lines include commands such as sqlplus, srvctl, and crsctl, the

Apart from significant technical differences between SQL Server and Oracle databases, there are also significant differences in implementation costs. I will share some of my views on this topic and hope to communicate with you.1. Oracle is developed