Introduction to Oracle databases and the Windows installation process

Introduction to Oracle Database

Maybe a lot of people are familiar with SQL Server, not much about Oracle database, here is a brief introduction

The founder of Oracle database is Lawrence Ellis.

Oracle database can be used by multiple operating systems

Eg:windows,linux,solaris,aix, etc.

Now let's make a simple comparison between Oracle and SQL Server

The 1:oracle database supports more systems than SQL Server, and the SQL Server database is developed by Microsoft and can only be used on Windows.

2: Different architectures, an instance in an Oracle database can manage only one database, and only a database in a clustered environment can be managed by one instance, while the SQL serve database is an instance that manages multiple databases.

3: Security, SQL Sever database does not pass security authentication, Oracle database is ISO secure certified database.

4: Memory allocation, Oracle is largely determined by Init.ora, while SQL Server memory allocations are allocated by dynamic memory allocations and static memory allocations.

The historical version of the Oracle database is not in the detail said interested can go to Baidu search

The Oracle database is installed on Windows

I did not install it in a real-world machine, but I installed it in a VMware virtual machine.

Installation requires installation package, and installation environment (the environment I chose is Windows7)

Install package to download the latest version (download the different version according to your choice environment) to the Oracle website

After downloading the database installer, you can see the Setup.exe executable double-click (It is best to turn off the firewall when installing)

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Need to fill in an e-mail address below the can not choose, to remove the tick

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If the following prompt appears, I think it should be a version or a compatibility problem false positives can be ignored

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Choose According to your needs

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Also according to their own needs

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Choose the installation location and set the password (perhaps you set the password pace and requirements, you need to change, but you can also ignore, directly using the password you want to use)

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Detect compliance with minimum configuration order requirements

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Start the installation

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Installation is complete.

Installation issues

1: Red arrow marked, after the installation is complete, do not know why the error.

2: And there will be errors and hints missing configuration file But I'm over it.

People who want to understand help answer these two questions

I am a beginner of Oracle database, if there are any errors described above, the great God to teach, thank you!

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Introduction to Oracle databases and the Windows installation process