How can I see all users in SQL?

Using SQL Server Management Studio

  1. First, move to “Object Explorer” and expand the database that you want.
  2. Next, under the database, expand the “Security” directory.
  3. Now, under Security, expand the “Users” option. This will display a list that contains all the users created in that database.

How can I tell who is connected to my Oracle database?

You can find all users currently logged into Oracle by running a query from a command prompt. In Oracle/PLSQL, there is a system view called V$SESSION which shows the session information for each current session in the database.

What are V$ views in Oracle?

7.1. 1 V$ Views The dynamic performance views are used by Oracle Enterprise Manager, which is the primary interface for accessing information about system performance. After an instance is started, the V$ views that read from memory are accessible.

How do you check if a user has access to a table in Oracle?

To determine which users have direct grant access to a table we’ll use the DBA_TAB_PRIVS view: SELECT * FROM DBA_TAB_PRIVS; You can check the official documentation for more information about the columns returned from this query, but the critical columns are: GRANTEE is the name of the user with granted access.

How do I get a list of user roles in SQL Server?

Listing SQL Server roles for a user In the Server type list box, select Database Engine. In the Server name text box, type the name of the SQL cluster server. In the Authentication list box, choose your SQL Server Authentication method and specify the credentials to use.

How many users are connected to my SQL Server database?

Click the “activity monitor” icon in the toolbar. From Thorsten’s comment: In SQL Server Management Studio, right click on Server, choose “Activity Monitor” from context menu -or- use keyboard shortcut Ctrl + Alt + A .

How do I connect to a user in Oracle?

Connecting to Oracle Database from SQL*Plus

  1. If you are on a Windows system, display a Windows command prompt.
  2. At the command prompt, type sqlplus and press the key Enter. SQL*Plus starts and prompts you for your user name.
  3. Type your user name and press the key Enter.
  4. Type your password and press the key Enter.

Can’t drop user that is currently connected?

You can get “ORA-01940: cannot drop a user that is currently connected” error during the drop any user. To solve this problem, you need to lock related user firstly. SQL> alter USER MSD account lock; User altered. Then kill the session of related user as follows.

How do I find my username in SQL?

The USER_NAME() function returns the database user name based on the specified id. If no id is specified, this function will return the name of the current user.