ClickHouse/docs/en/interfaces/mysql.md
2020-04-08 17:22:25 +03:00

48 lines
1.5 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

---
toc_priority: 20
toc_title: MySQL Interface
---
# MySQL Interface {#mysql-interface}
ClickHouse supports MySQL wire protocol. It can be enabled by [mysql\_port](../operations/server_configuration_parameters/settings.md#server_configuration_parameters-mysql_port) setting in configuration file:
``` xml
<mysql_port>9004</mysql_port>
```
Example of connecting using command-line tool `mysql`:
``` bash
$ mysql --protocol tcp -u default -P 9004
```
Output if a connection succeeded:
``` text
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 20.2.1.1-ClickHouse
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
```
For compatibility with all MySQL clients, it is recommended to specify user password with [double SHA1](../operations/settings/settings_users.md#password_double_sha1_hex) in configuration file.
If user password is specified using [SHA256](../operations/settings/settings_users.md#password_sha256_hex), some clients wont be able to authenticate (mysqljs and old versions of command-line tool mysql).
Restrictions:
- prepared queries are not supported
- some data types are sent as strings
[Original article](https://clickhouse.tech/docs/en/interfaces/mysql/) <!--hide-->