The Oracle tutorial being looked at is the comparison of Oracle and SQL Server in enterprise applications. The company I serve not only has an Oracle database, but also has a SQL Server database, so I often meet people asking me two questions.
The
The Oracle tutorial being looked at is: PL/SQL implementation of Oracle database task scheduling. Absrtact: This article mainly on the database recovery and system task scheduling, combined with the general database background processing experience,
The Oracle tutorial being looked at is: Oracle's data dictionary technology analysis.
The data dictionary is where Oracle holds information about the database, and its purpose is to describe the data. For example, a table creator information, create
11g The password is case-sensitive with one parameter, let's do a trial:
C:\Documents and Settings\guogang>sqlplus gg_test/gg_test@10.10.15.25_gg Sql*plus:release 10.2.0.1.0- Production on Monday August 4 17:54:19 2014 Copyright (c) 1982, +,
First, overview:
Oracle Registration is the registration of the database as a service to the listener. The client does not need to know the name of the database and the instance name, just know the name of the service provided by the database can
The parallel operation characteristic of Oracle database is to forcibly extract the free resources of database server (mainly CPU resources), and to divide and treat some high load data. Parallel operation is a non-deterministic optimization
1. Oracle 11g R2 Installation Manual (graphics tutorial) for Windows
Before installation, you need to confirm the following points:
Your memory is not a problem (this is important, if your machine often blue screen then don't pretend, or you cry)
1. Because Oracle 10g does not have a Win7 compatible version for the time being, we can achieve the installation target by modifying some files in the installation software.
A) Open the "\oracle10g_client \stage\prereq\client\" path, locate the
In the afternoon learning Oracle 10g R2 Concepts
Leave a pen here.
The unit in which Oracle manages storage space in the database data file (datafile) is the data block. A block of data is the smallest (logical) unit of data in a database. The
Failure Phenomenon
Oracle 11g Database Common user logon prompt ora-28002:the password'll expire within 7 days
[11:01:00oracle@dvd db_1] $sqlplus wang/oracle
Sql*plus:release 11.2.0.1.0 Production on Fri Nov 16 11:01:23 2012
Copyright (c) 1982, 2009
Recently in the official document of Oracle Sqlplus, the Sqlplus Security Section introduced the PUP mechanism. To take this, I will use the following:
PUP (Product_user_profile) Introduction
Product_user_profile is the next table in the system
Introduced:
For 10GR2, it can be divided into several categories:
Range (range) partition
Hash (hash) partition
List (lists) partition
and combined partitions: Range-hash,range-list.
Preparation environment:
--1, building three table spaces
Open
SQL Server
Can only run on Windows, without the slightest openness, the stability of operating system systems is very important to the database. Windows9x Series products are focused on desktop applications, NT server only for small and
1. Recover password fileOrapwd file= $ORACLE _HOME/DBS/ORAPWOCP password=oracle force=y ignorecase=y;
--Note: whether the common user's password is case-sensitive and Sec_case_sensitive_logon by the initial parameter, and not the password file
Initialization parameter remote_os_authent is used to control whether remote operating system authentication is allowed.
By default, the database runs only the operating system validation on the local server:
Sql> SELECT * from Global_name;
A well-designed, performance-capable database engine can easily serve thousands of users at the same time. And the "weak" database system with more users to access the system will greatly reduce its performance. In the worst case, it could even
10g online redefinition solves this problem. If the objects are created using Copy_table_dependents, the associated objects are automatically changed to their original names when the redefinition operation completes. If it is a manually created
Patch Set 11.2.0.4 version, seemed only to have purchased the Oracle users of the service are open. looking for a classmate to share a, because before fitted 11.2.0.1 version, so upgrade it to 11.2.0.4 version, upgrade requires only 1 , 2 Two
(The following system and version are basically similar to the WINDOWS7 system and other versions of Oracle11g,windows and other versions of Oracle.) )I. INTRODUCTION of OracleSummary: Oracle is a relational database management system that is the
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