Table of Contents
- 1 What are the different privileges for users in MySQL?
- 2 How do I grant privileges to a user in MySQL command line?
- 3 How do I create a constraint in MySQL?
- 4 How do I change user privileges in MySQL?
- 5 How do I grant multiple privileges in MySQL?
- 6 How do I select a specific data in SQL?
- 7 How do I change permissions on a database?
What are the different privileges for users in MySQL?
Grant Permissions to MySQL User
- ALL – Allow complete access to a specific database.
- CREATE – Allow a user to create databases and tables.
- DELETE – Allow a user to delete rows from a table.
- DROP – Allow a user to drop databases and tables.
- EXECUTE – Allow a user to execute stored routines.
How do I grant privileges to a user in MySQL command line?
To GRANT ALL privileges to a user , allowing that user full control over a specific database , use the following syntax: mysql> GRANT ALL PRIVILEGES ON database_name. * TO ‘username’@’localhost’;
How do I select only certain rows in SQL?
To select rows using selection symbols for character or graphic data, use the LIKE keyword in a WHERE clause, and the underscore and percent sign as selection symbols. You can create multiple row conditions, and use the AND, OR, or IN keywords to connect the conditions.
How do I create a constraint in MySQL?
The syntax for creating a unique constraint using an ALTER TABLE statement in MySQL is: ALTER TABLE table_name ADD CONSTRAINT constraint_name UNIQUE (column1, column2, column_n); table_name.
How do I change user privileges in MySQL?
You can’t currently change a user’s privileges in the control panel, so to do so you need to use a command-line MySQL client like mysql . After you create a user in the cluster, connect to the cluster as doadmin or another admin user.
How do you make a MySQL user read only?
How to create a read-only MySQL user?
- Log into MySQL as an admin. Run the MySQL command-line program by doing one of the following:
- Create a new MySQL user. Copy the following command and paste them into a MySQL shell.
- Grant read-only permission to the MySQL user.
How do I grant multiple privileges in MySQL?
In this syntax: First, specify one or more privileges after the GRANT keyword. If you grant multiple privileges, you need to separate privileges by commas. Second, specify the privilege_level that determines the level to which the privileges apply.
How do I select a specific data in SQL?
The SQL SELECT Statement
- SELECT column1, column2, FROM table_name;
- SELECT * FROM table_name;
- Example. SELECT CustomerName, City FROM Customers;
- Example. SELECT * FROM Customers;
What are different MySQL constraints?
Constraints in MySQL is classified into two types: Column Level Constraints: These constraints are applied only to the single column that limits the type of particular column data. Table Level Constraints: These constraints are applied to the entire table that limits the type of data for the whole table.
How do I change permissions on a database?
Connect to the database server for which you want to change a user’s server permissions. Right-click the database server and click Permissions. Choose the user from the list. Check the Server administrator check box to grant the user server administrator privileges.