Oracle

In the previous article, we discussed how to use VPD to access the rows in an Oracle table (see Oracle Database Security-Virtual Private database (VPD)), which describes an access control technology that is more complex than VPD--ols (Oracle Label

You can define one or several autonomous transactions in a transaction (outer transaction). Autonomous transactions can be commit independently and do not have an impact on external affairs, and the rollback of the same outer transaction has no

Software programming in Gizhgara: Getting Started with database transactions (for beginners to read) articles about MS SQL Server and Oracle's differences in database transaction processing are a bit controversial, so keep track of my thoughts on

Oracleenterprisemanager (Oracle Enterprise Manager, abbreviation OEM) provides management services for managing distributed environments through a set of Oracle programs. OEMs include a set of DBA tools, a repository, and a graphical display of the

oracle| optimization 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 productivity of their companies.

oracle| Stored Procedure test environment: Win2000 + Oracle92 The process of storing a picture file, any development tool can store the picture text in the database by calling the procedure. Detailed steps: Microsoft Windows 5.00.2195 [Version] (C)

oracle| Data | database | questions I often see some friends ask questions about Oracle character sets, and I'd like to introduce them in an iterative way. First iteration: Mastering the basic concepts of character sets. Some friends may think this

oracle| Backup | recovery | data | database Oracle database Backup and Recovery ----When we use a database, always want the content of the database is reliable, correct, but due to computer system failures (including machine failure, media failure,

oracle| problem Normally, Oracle automatically frees up temporary segment A when it completes a sort operation that uses the temp table space, such as a SELECT statement, create INDEX, and so on. But some of us will encounter the temporary segment

oracle| Stored Procedures Oracle Side1. Creating Oracle Process StorageCreate or Replace procedure Proce_test (paramin in Varchar2,paramout out varchar2,paraminout into out varchar2)AsVarparam VARCHAR2 (28);BeginVarparam:=paramin;paramout:=varparam|

Ado|oracle vsm:oracle Objects for OLE (OO4O) is designed as an alternative to ADO, and it can do everything that JDBC does. The role of OLE DB and Ado.net is part of oo4o all features. OLE DB does not support the object data types introduced in

Some time ago in a migration of data pump and exp, found that the difference in efficiency is quite large. Here is an example of a simple comparison. This article discusses the most important factors that affect the performance of data pump imports.

1, create a directory mkdir D:oracleproduct10.1.0database mkdir E:oracleadminora10gdump mkdir E:oracleadminora10gcdump mkdir e:oracleadminora10gcreate mkdir E:oracleadminora10gpfile mkdir E:oracleadminora10gudump mkdir

Turn http://jingyan.baidu.com/article/425e69e6b142d1be15fc16dc.html Microsoft Windows [version 6.1.7600]Copyright (c) Microsoft Corporation. All rights reserved.C:\users\administrator>tnspingTNS Ping Utility for 32-bit windows:version 10.2.0.1.0-

The following applies to Oracle 10.2.0.5 and aboveOne query is slow, and the original SQL is as follows:1 Select 2A.*3 from(Select 4 Ssi.id,5 'Small_station_info'TB,6(SelectSbi.name7 fromScene_base_info SBI8

Recently, because of the job needs, the boss asked the Oracle database on the server to migrate data to another server, I am not very familiar with Oracle, the migration of the database This is a matter of time spent, but also on the internet to

--1 Building TableCREATE TABLE City_table(City_name VARCHAR2 (100), District varchar2 (100));--2 Inserting dataInsert into city_table (City_name, DISTRICT) VALUES (' Beijing ', ' Dongcheng District ');Insert into city_table (City_name, DISTRICT)

1. Download the Oracle Client package.Download from http://www.oracle.com/technology/software/tech/oci/instantclient/htdocs/winsoft.htmlInstant Client Package–basic Package (callout: All files required to run OCI, OCCI, and jdbc-oci applications)

The Data definition language (Language, DDL) is a language in the SQL language set responsible for data structure definitions and database object definitions, consisting of Create, alter, and drop three grammars. database objects include tables,

Oracle SQL Language Common functions _ Beyond OCP Proficient Oracle Video Tutorial Training 30This course introduces:Oracle Video tutorial, wind Brother this set of Oracle Tutorial training is the > 5th 5 sets: Common functions of Oracle SQL