How to build an oracle database

Oracle database is a core platform of enterprise-level database systems. It is widely used to support efficient and stable enterprise-level applications. In this article, we will discuss the database building process of the Oracle database system.

When establishing an Oracle database, you will generally choose to create one or more table spaces to store user data, and corresponding directories to support the storage of database objects. There are many tools for managing and maintaining databases, including SQL*Plus, SQL Developer, Enterprise Manager, etc.

Below we will break down the steps to introduce the Oracle database building process:

1. Install Oracle database software

Please make sure you have a complete Oracle before starting the installation Install the package and install the official version of the operating system on the server. It is recommended to place the Oracle installation package in a separate directory to avoid confusion. Execute the installation package file and follow the prompts to install. The specific process is relatively simple. It should be noted that the regular installation mode must be selected.

2. Create Oracle database

You can use the Oracle Database Configuration Assistant (DBCA) tool to create an Oracle database. The DBCA tool provides an interactive interface for the database building process to help users quickly create database instances. We can run the DBCA tool using:

a. In Windows, the tool can be found in the Oracle Database Installer group under the Start menu and run.

b. In Linux/Unix, you can run the dbca command.

The DBCA tool will prompt you to choose to create a new database, or you can choose to use an existing template to create one. If you choose to create a new one, some basic information configuration will appear, such as database name, character set, regional settings, listener configuration, etc. etc., select and fill in according to the actual situation. After completing the above steps, you can complete the establishment of the database.

3. Creating table spaces and users

In Oracle database, each table space has a file in which tables, indexes, and other objects can be stored. Before creating a user, you must first create a table space. You can create a table space in the following ways:

a. First log in to the database, you can use SQL*Plus or other command line tools to log in.

b. Create table space:

CREATE TABLESPACE DATAFILE '\.dbf' SIZE

In the above command, tablespace name is the name of the tablespace you want to create, and directory path is the folder where the file is stored, such as C:\app\user\oracle\product\12.1.0\db_1\database, file name is the name of the table space file, such as sysaux.dbf, and size is the size of the table space.

c. Create user:

CREATE USER IDENTIFIED BY DEFAULT TABLESPACE QUOTA ON

In the above command, username is the username you want to create, password is the user's password, tablespace is the user's default tablespace, and size is the size of the tablespace.

After creating a user, you need to grant the user the corresponding permissions so that they can access and modify objects in the database. You can use the following command to authorize the user:

GRANT TO

In the above command, privilege is the permission that the user needs to access (such as SELECT, INSERT, UPDATE, DELETE etc.), username is the username you created.

4. Other configuration

After completing the above steps, you also need to complete some other configurations, such as configuring the listener, starting the Oracle service, performing backup and recovery, etc., in We won’t go into details here.

Summary

There are many factors to consider when building and configuring an Oracle database, but by using professional tools (such as DBCA) and the correct commands, the database building process can be made relatively simple and fast. The key to successfully building an Oracle database is correct planning and configuration to ensure that the system can adapt to changes in business needs in future use and always run safely and quickly.

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