How to show all databases in MySQL?

How to show all databases in MySQL?

Run the following query to show list of databases: SHOW DATABASES; You can run this statement from MySQL Command Line Client, MySQL Shell, as well as from any GUI tool that supports SQL—for example, dbForge Studio for MySQL. MySQL returns the results in a table with one column—Database.

How do I show all databases in SQL?

Show Databases in SQL Server

You can run this query: SELECT name FROM sys. databases; This will show a list of database names.

How do I see all databases in MySQL Workbench?

To view the database created on MySQL Workbench, navigate to Database > Connect to Database . Choose an existing connection to connect to MySQL Server or create a new one. The database created will be as shown in the screenshot below.

How to see all databases with size in MySQL?

To check the sizes of all of your databases, at the mysql> prompt type the following command: Copy SELECT table_schema AS "Database", ROUND(SUM(data_length + index_length) / 1024 / 1024, 2) AS "Size (MB)" FROM information_schema.

How to open database in MySQL command line?

How to use MySQL Command Line Client

  1. Open Command Prompt.
  2. Navigate to the bin folder. For example: cd C:\Program Files\MySQL\MySQL Server 8.0\bin.
  3. Run the mysql -u root -p command.
  4. Enter the password.

How to select database in MySQL command line?

You can use the SQL command use to select a database.

  1. Example. Here is an example to select a database called TUTORIALS − [root@host]# mysql -u root -p Enter password:****** mysql> use TUTORIALS; Database changed mysql> …
  2. Syntax. mysqli_select_db ( mysqli $link , string $dbname ) : bool. …
  3. Example. …
  4. Output.

How to SELECT database in MySQL command line?

You can use the SQL command use to select a database.

  1. Example. Here is an example to select a database called TUTORIALS − [root@host]# mysql -u root -p Enter password:****** mysql> use TUTORIALS; Database changed mysql> …
  2. Syntax. mysqli_select_db ( mysqli $link , string $dbname ) : bool. …
  3. Example. …
  4. Output.

When you have several databases available in MySQL?

SELECT Database is used in MySQL to select a particular database to work with. This query is used when multiple databases are available with MySQL Server. You can use SQL command USE to select a particular database.

How do I find the total size of all databases in SQL Server?

How to Check SQL Server Database Size

  1. Launch Microsoft SQL Server Management Studio (SSMS).
  2. On the File menu, click “Connect Object Explorer”. …
  3. Click “Connect”.
  4. Upon connection, click “New Query” and enter one of the following as the query:
  5. Click “Execute”.
  6. Review the output, as illustrated below.

How to find big tables in MySQL?

To identify the large tables, connect to the database as described in the Connect to the database article, and run the following command, where project_id is your Cloud project ID: SELECT TABLE_NAME AS `Table`, ROUND((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024) AS `Size (MB)` FROM information_schema.

How to open a database in SQL command line?

Open a Command Prompt window, and type sqlcmd -SmyServer\instanceName. Replace myServer\instanceName with the name of the computer and the instance of SQL Server that you want to connect to. Press ENTER. The sqlcmd prompt (1>) indicates that you are connected to the specified instance of SQL Server.

How do I open a MySQL database in SQL Server?

On the File menu, select Connect to MySQL (this option will be enabled after the creation of project). If you are previously connected to MySQL, the command name will be Reconnect to MySQL. In the Provider box, select MySQL ODBC 5.1 Driver (trusted). It is the default provider in the standard mode.

How do I switch between databases in MySQL?

Change or switch DATABASE in MySQL

To change or switch DATABASE, run the same USE database_name query with the new database name that you wish to work on. In the example shown above, USE db3; changes the database, from db2 to db3, on which your SQL queries effect on.

How do I access another database in MySQL?

Enter the show databases command to get a list of databases on our MySQL Server. To create a new database, use the create database command. To connect to a specific MySQL database, at the MySQL prompt, type the use database command and specify the name of the database you want to use.

How to select databases in MySQL?

You can use the SQL command use to select a database.

  1. Example. Here is an example to select a database called TUTORIALS − [root@host]# mysql -u root -p Enter password:****** mysql> use TUTORIALS; Database changed mysql> …
  2. Syntax. mysqli_select_db ( mysqli $link , string $dbname ) : bool. …
  3. Example. …
  4. Output.

How to find the table in all databases SQL Server?

How to display all the tables from a database in SQL

  1. SELECT table_name FROM INFORMATION_SCHEMA. TABLES WHERE table_type = 'BASE TABLE' SELECT name FROM sys. …
  2. — This returns all the tables in the database system. …
  3. — Lists all the tables in all databases SELECT table_name FROM information_schema.

How do you find the total size of a database?

The size of the database is the space the files physically consume on disk. You can find this with: select sum(bytes)/1024/1024 size_in_mb from dba_data_files; But not all this space is necessarily allocated.

How to show all tables and sizes in MySQL?

In MySQL, you can check the size of all tables within a given database (or on all databases) by querying the information_schema. tables table. This table stores data about each table in a database, including information about each table's size, creation date, collation, etc.