How can I see all MySQL databases?

How can I see all MySQL databases?

To list all databases in MySQL, execute the following command: mysql> show databases; This command will work for you whether you have Ubuntu VPS or CentOS VPS. If you have other databases created in MySQL, they will be listed here.

How do I show global variables in MySQL?

SHOW VARIABLES accepts an optional GLOBAL or SESSION variable scope modifier: With a GLOBAL modifier, the statement displays global system variable values. These are the values used to initialize the corresponding session variables for new connections to MySQL. If a variable has no global value, no value is displayed.

What are the commands in MySQL?

MySQL Commands

Description Command
Remove particular table columns ALTER TABLE [table-name] DROP COLUMN [column-name];
Delete tables from the database DROP TABLE [table-name];
Delete databases DROP DATABASE [database-name];
Custom column output names SELECT [column-name] AS [custom-column] FROM [table-name];

How do I create a variable in MySQL?

  1. Assigning value to a variable using SET command. mysql>SET @var1 = 2+6; mysql>SET @var2 := @var1-2;
  2. Accessing a undeclared variable mysql>SELECT @var3; Output: +——-+ | @var3 | +——-+ | NULL | +——-+
  3. Assigning value to a variable without using SET.

How do I view all SQL databases?

To view a list of databases on an instance of SQL Server

  1. In Object Explorer, connect to an instance of the SQL Server Database Engine, and then expand that instance.
  2. To see a list of all databases on the instance, expand Databases.

How do I view MySQL database in Windows?

Open the mysql command line tool:

  1. In the Windows Command Prompt, run the command: mysql -u userName -p.
  2. Enter your password when prompted.

How do you display the global variable values?


  1. Use the SHOW GLOBALS command to display the GLOBALS panel.
  2. Press the Show Field key to display the entire entry field. The maximum length for a global variable on the Show Global Variable screen is 32,768 bytes.
  3. Type the value for the variable on the lines provided.

What is @@ in MySQL?

To indicate explicitly that a variable is a session variable, precede its name by SESSION, @@session., or @@. Setting a session variable requires no special privilege, but a client can change only its own session variables, not those of any other client.

How do I view a SQL database?

How do I query a MySQL database?

Some of the commonly used MySQL queries, operators, and functions are as follows :

  1. SHOW DATABASES. This displays information of all the existing databases in the server.
  2. USE database_name. database_name : name of the database.
  3. DESCRIBE table_name.
  5. SHOW CREATE TABLE table_name.
  7. SELECT 2 + 4;

How do I write an if statement in MySQL?

The syntax for the IF-THEN-ELSE statement in MySQL is: IF condition1 THEN {… statements to execute when condition1 is TRUE…} [ ELSEIF condition2 THEN {…

Are there variables in MySQL?

MySQL provides a SET and SELECT statement to declare and initialize a variable. The user-defined variable name starts with @ symbol. We can assign the user-defined variable into limited data types like integer, float, decimal, string, or NULL. The user-defined variable can be a maximum of 64 characters in length.

How do I show databases in MySQL?

To show databases in MySQL, use the MySQL Client. 1. Log into your MySQL client. If necessary, connect to a remote server using an SSL connection. Replace username with your username (or the word root ). When prompted, enter the password for that username (Omit the –p if the user doesn’t have a password). 2.

How do I get a list of MySQL databases in Linux?

Show MySQL Databases The most common way to get a list of the MySQL databases is by using the mysql client to connect to the MySQL server and run the SHOW DATABASES command. Access the MySQL server using the following command and enter your MySQL user password when prompted: mysql -u user -p

How to use –skip-show-database in MySQL to query the database?

It is important to note that if the MySQL database server started with –skip-show-database, you cannot use the SHOW DATABASES statement unless you have the SHOW DATABASES privilege. If the condition in the LIKE clause is not sufficient, you can query the database information directly from the schemata table in the information_schema database.

How do I open a MySQL database in Linux terminal?

Access to a command line/terminal window (Ctrl-Alt-T or Ctrl-Alt-F2) Show MySQL Databases. To show databases in MySQL, use the MySQL Client. 1. Log into your MySQL client. If necessary, connect to a remote server using an SSL connection. Open a terminal window and enter the following command: mysql –u username –p