How to view oracle users

Oracle is a commonly used relational database management system that can manage large amounts of data concisely and efficiently. In the process of using Oracle, you may encounter the need to check Oracle users. This article will introduce how to view Oracle users.

1. View Oracle users through SQL statements

SQL statements are one of the most commonly used operating statements in the Oracle database. Oracle users can be queried through SQL statements. Use the following code to query Oracle users:

SELECT username FROM dba_users;

After running the above SQL statement, you will get a list of all users in the current Oracle database. This query statement will query all Oracle users in the dba_users view.

If you only need to query the currently connected user, you can add a where condition on this basis:

SELECT username FROM dba_users WHERE username=CURRENT_USER;

This query statement can query the name of the currently connected user.

In addition, you can also use all the tables that come with the system, for example:

SELECT USERNAME FROM all_users;

all_users saves the information of all users on the Oracle server, while the non-dba_users table only saves each user name and its Permission information in all databases.

2. View Oracle users through Oracle SQL Developer

Oracle SQL Developer is a visual external tool that can quickly view Oracle database information and is easy to use. It is an Oracle Database development and management tool.

To view Oracle users:

1. Open Oracle SQL Developer
2. In a new window, click the "Connections" view
3. In "Connections "Find the Oracle connection that needs to be queried in the view
4. After opening the connection, under the "other Users" and "Object" windows, you can see the drop-down menu and select "Users"
5. Now Oracle SQL Developer will display a list of all users currently connected
6. Right-click on the user, you can select properties to edit the connection

3. View Oracle users through Oracle Enterprise Manager

Oracle Enterprise Manager is a comprehensive management tool for Oracle database. Using it can greatly simplify and speed up the management of Oracle servers, where Oracle users can be viewed.

To view Oracle users:

1. Open Oracle Enterprise Manager
2. In the left menu, expand the "Security" and "Users" tabs
3. Click "Users", all users and user groups will be displayed on the right side
4. Select the user name on the user list, and the user's detailed information will be displayed on the right side
5. In the details page , you can view various detailed information of the user, such as permissions, password settings, etc.

Summary:

The above three methods can be used to view Oracle users, providing you with Different options. Depending on the scenario, choose the most appropriate method to view Oracle users quickly and accurately.

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