ClickHouse/docs/en/interfaces/mysql.md
Ivan Blinkov 2e1f6bc56d
[experimental] add "es" docs language as machine translated draft (#9787)
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* lightly edited machine translation of introdpection.md

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* WIP on translation utils

* Normalize ru docs

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* [experimental] add es docs language as machine translated draft

* remove duplicate script

* Back to wider tab-stop (narrow renders not so well)
2020-03-21 07:11:51 +03:00

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# MySQL interface {#mysql-interface}
ClickHouse supports MySQL wire protocol. It can be enabled by [mysql\_port](../operations/server_settings/settings.md#server_settings-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-->