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    ApsaraDB for OceanBase:Connect to OceanBase Database by using a MySQL client

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    ApsaraDB for OceanBase:Connect to OceanBase Database by using a MySQL client

    Last Updated:Jan 03, 2023

    You can use a MySQL client to connect to a MySQL tenant of OceanBase Database. This topic describes the prerequisites and connection procedure.

    Prerequisites

    • The MySQL client is installed locally. OceanBase Database supports the following MySQL client versions: 5.5, 5.6, and 5.7.

    • The environment variable PATH contains the directory where the MySQL client is located.

    Procedure

    1. Open a command-line terminal.

    2. Enter the operating parameters of MySQL in the following format: 

    $mysql -h192.168.0.0 -u -P3306 -p**1*** -c -A oceanbase
    Note

    Parameters

    • -h: specifies the IP address for connecting to OceanBase Database.

    • -u: specifies the tenant account.

    • -P: specifies the OceanBase Database connection port. The default value is 3306.

    • -p: specifies the account password. For security reasons, you do not need to specify this parameter. In that case, you will be prompted to enter a password later. The password is invisible.

    • -c: specifies that comments must not be ignored in the runtime environment of MySQL.

    • -A: specifies not to automatically retrieve the statistical information when connecting to a MySQL tenant.

    • oceanbase: specifies the name of the database to be accessed. You can change it to the name of the corresponding business database.

    1. After successful connection, the following default OceanBase command-line prompt appears on the command-line terminal:

    MySQL [oceanbase]>

    1. To exit the OBClient command-line terminal, enter exit and press Enter, or press Ctrl+D.

    Examples

    The following sample code shows how to connect to a MySQL tenant of OceanBase Database from the MySQL client: 

    $mysql -h192.168.0.0 -u -P3306 -p**1*** -c -A oceanbase
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MySQL connection id is 62488
Server version: 5.6.25 OceanBase 2.2.20 (…) (Built Aug 10 2019 15:27:33)

<... Omitted…>

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MySQL [oceanbase]> SHOW DATABASES;
+--------------------+
| Database           |
+--------------------+
| oceanbase          |
| information_schema |
| mysql              |
| test               |
+--------------------+
4 rows in set

MySQL [oceanbase]> exit
Bye