![]() In the process, we'll create a test database for the To Do List. Monitoring PostgreSQL with Navicat Monitor 3.In this lesson, we'll learn how to export and import a database using MySQL Workbench.Trace Queries on your PostgreSQL Instances with Navicat Monitor 3.Viewing PostgreSQL Instance Details in Navicat Monitor 3.A Quick Guide to Naming Conventions in SQL - Part 2.A Quick Guide to Naming Conventions in SQL - Part 3.Selecting Distinct Values From a Relational Database.Implement Audit Trail Logging Using Triggers.Multi-Version Concurrency Control in PostgreSQL.A Guide to MySQL Foreign Key Constraints.Navicat Wins a DBTA Readers' Choice Award!. ![]() Interested in Navicat for MySQL? You can try it for 14 days completely free of charge for evaluation purposes! To learn more about managing users in Navicat, take a look at the Manage MySQL Users in Navicat Premium series: Which is the easier of the two is up for debate, but I personally find the checkbox approach more intuitive. In today's blog, we saw how to prevent a user from listing databases in MySQL, both via the MySQL REVOKE command and using Navicat's Server Privileges and Privileges tabs. We can even manage privileges at the table and column level! Conclusion There, we can set also database-specific privileges such as those to create views, show views, drop tables, execute INSERT statements, etc. Here are privileges for the sakila database: To revoke the SHOW DATABASES privilege, we can simply uncheck the box beside the SHOW DATABASES label, and click the Save button. Here are server-level privileges (including SHOW DATABASES): To access them, click the User button on the main button bar, select the user that you're interested in, and then click the Privilege Manager button on the Objects toolbar: ![]() If we now wanted to remove that privilege, we can issue the REVOKE command:įROM Navicat, we can set a user's privileges both at the server and database level on the Server Privileges and Privileges tabs of the user details. The above output confirms that bob_s does have the SHOW DATABASES privilege. SHOW GRANTS FOR some example output for the user in Navicat Premium: Revoking a User Privilege Otherwise, you can see which privileges a user currently has by issuing the SHOW GRANTS command: Hence, on a new database, we can simply not add the user to it to prevent the user from seeing it. The privilege that allows a user to obtain a list of databases via the SHOW_DATABASES command is Show_db_priv. To see the contents of the user table, we can use the DESC command: Although it is possible to directly query and update the user table, it's best to use GRANT and CREATE USER for adding users and privileges. The er table contains information about users that have permission to access the MySQL server, along with their global privileges. ![]() In today's blog, we'll learn how to prevent a user from listing databases in MySQL. While not the easiest system to grasp, once a DBA does, he or she tends to agree that it really is quite effective. That is why MySQL offers such a fine-grained access control system. Theres an adage for user privileges that you should assign a user the least amount of privileges that he or she requires to perform their job function(s) and no more. Hiding Databases From Users in MySQL by Robert Gravelle
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